/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 14:39:43,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 14:39:43,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 14:39:43,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 14:39:43,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 14:39:43,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 14:39:43,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 14:39:43,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 14:39:43,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 14:39:43,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 14:39:43,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 14:39:43,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 14:39:43,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 14:39:43,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 14:39:43,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 14:39:43,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 14:39:43,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 14:39:43,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 14:39:43,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 14:39:43,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 14:39:43,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 14:39:43,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 14:39:43,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 14:39:43,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 14:39:43,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 14:39:43,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 14:39:43,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 14:39:43,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 14:39:43,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 14:39:43,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 14:39:43,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 14:39:43,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 14:39:43,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 14:39:43,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 14:39:43,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 14:39:43,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 14:39:43,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 14:39:43,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 14:39:43,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 14:39:43,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 14:39:43,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 14:39:43,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 14:39:43,340 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 14:39:43,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 14:39:43,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 14:39:43,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 14:39:43,342 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 14:39:43,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 14:39:43,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 14:39:43,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 14:39:43,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 14:39:43,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 14:39:43,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 14:39:43,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 14:39:43,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 14:39:43,344 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 14:39:43,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 14:39:43,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 14:39:43,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 14:39:43,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 14:39:43,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 14:39:43,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 14:39:43,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 14:39:43,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 14:39:43,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 14:39:43,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 14:39:43,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 14:39:43,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 14:39:43,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 14:39:43,348 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 14:39:43,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 14:39:43,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 14:39:43,348 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 14:39:43,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 14:39:43,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 14:39:43,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 14:39:43,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 14:39:43,743 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 14:39:43,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longer-2.i [2021-04-28 14:39:43,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47e9cba9/fc21d54c6bb9452b95772cd80b826fba/FLAG835cd537c [2021-04-28 14:39:44,571 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 14:39:44,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-2.i [2021-04-28 14:39:44,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47e9cba9/fc21d54c6bb9452b95772cd80b826fba/FLAG835cd537c [2021-04-28 14:39:44,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47e9cba9/fc21d54c6bb9452b95772cd80b826fba [2021-04-28 14:39:44,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 14:39:44,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 14:39:44,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 14:39:44,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 14:39:44,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 14:39:44,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 02:39:44" (1/1) ... [2021-04-28 14:39:44,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd272b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:44, skipping insertion in model container [2021-04-28 14:39:44,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 02:39:44" (1/1) ... [2021-04-28 14:39:44,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 14:39:45,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 14:39:45,349 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-2.i[30929,30942] [2021-04-28 14:39:45,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 14:39:45,364 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 14:39:45,423 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-2.i[30929,30942] [2021-04-28 14:39:45,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 14:39:45,601 INFO L208 MainTranslator]: Completed translation [2021-04-28 14:39:45,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45 WrapperNode [2021-04-28 14:39:45,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 14:39:45,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 14:39:45,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 14:39:45,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 14:39:45,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 14:39:45,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 14:39:45,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 14:39:45,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 14:39:45,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... [2021-04-28 14:39:45,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 14:39:45,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 14:39:45,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 14:39:45,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 14:39:45,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 14:39:45,820 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-04-28 14:39:45,820 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-04-28 14:39:45,820 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-04-28 14:39:45,820 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-04-28 14:39:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 14:39:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 14:39:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 14:39:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 14:39:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 14:39:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 14:39:45,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 14:39:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 14:39:45,824 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 14:39:46,331 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 14:39:46,332 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-04-28 14:39:46,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 02:39:46 BoogieIcfgContainer [2021-04-28 14:39:46,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 14:39:46,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 14:39:46,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 14:39:46,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 14:39:46,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 02:39:44" (1/3) ... [2021-04-28 14:39:46,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee6eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 02:39:46, skipping insertion in model container [2021-04-28 14:39:46,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:39:45" (2/3) ... [2021-04-28 14:39:46,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee6eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 02:39:46, skipping insertion in model container [2021-04-28 14:39:46,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 02:39:46" (3/3) ... [2021-04-28 14:39:46,376 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench_longer-2.i [2021-04-28 14:39:46,385 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 14:39:46,391 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 14:39:46,395 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 14:39:46,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,453 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,455 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,455 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,457 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,457 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,457 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,458 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,458 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,459 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,459 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,459 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,461 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,461 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,461 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,462 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,462 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,462 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,463 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,464 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,464 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,464 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,465 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,465 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,466 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,468 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,468 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,471 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,471 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,471 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,472 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,479 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,480 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,482 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 14:39:46,485 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 14:39:46,511 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-28 14:39:46,558 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 14:39:46,558 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 14:39:46,558 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 14:39:46,559 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 14:39:46,560 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 14:39:46,560 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 14:39:46,560 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 14:39:46,560 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 14:39:46,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 134 flow [2021-04-28 14:39:46,653 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-04-28 14:39:46,653 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:39:46,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 14:39:46,675 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 62 transitions, 134 flow [2021-04-28 14:39:46,686 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 126 flow [2021-04-28 14:39:46,688 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:39:46,705 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 126 flow [2021-04-28 14:39:46,710 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 126 flow [2021-04-28 14:39:46,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 126 flow [2021-04-28 14:39:46,754 INFO L129 PetriNetUnfolder]: 5/60 cut-off events. [2021-04-28 14:39:46,754 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:39:46,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 60 events. 5/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 14:39:46,761 INFO L146 LiptonReduction]: Number of co-enabled transitions 1080 [2021-04-28 14:39:53,263 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 14:39:53,536 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 14:39:54,236 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-28 14:39:54,343 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:39:54,599 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-28 14:39:54,708 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:39:54,971 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-28 14:39:55,297 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-28 14:39:55,400 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-28 14:39:56,931 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 14:39:58,008 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 14:39:58,130 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:39:58,268 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 14:39:58,392 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 14:39:58,800 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 14:39:58,951 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 14:39:59,086 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 14:39:59,216 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 14:40:00,607 INFO L158 LiptonReduction]: Checked pairs total: 3991 [2021-04-28 14:40:00,607 INFO L160 LiptonReduction]: Total number of compositions: 121 [2021-04-28 14:40:00,611 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13924 [2021-04-28 14:40:00,635 INFO L129 PetriNetUnfolder]: 2/51 cut-off events. [2021-04-28 14:40:00,635 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:40:00,636 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:00,637 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-28 14:40:00,637 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:00,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:00,645 INFO L82 PathProgramCache]: Analyzing trace with hash 705684432, now seen corresponding path program 1 times [2021-04-28 14:40:00,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:00,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243071072] [2021-04-28 14:40:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:00,903 INFO L142 QuantifierPusher]: treesize reduction 12, result has 36.8 percent of original size [2021-04-28 14:40:00,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:00,917 INFO L142 QuantifierPusher]: treesize reduction 6, result has 53.8 percent of original size [2021-04-28 14:40:00,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:00,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243071072] [2021-04-28 14:40:00,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:00,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 14:40:00,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50633140] [2021-04-28 14:40:00,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 14:40:00,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:00,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 14:40:00,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 14:40:00,960 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:00,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 69 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:00,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:00,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:00,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:01,375 INFO L129 PetriNetUnfolder]: 1392/1995 cut-off events. [2021-04-28 14:40:01,375 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 14:40:01,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3828 conditions, 1995 events. 1392/1995 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 9895 event pairs, 224 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 3782. Up to 1666 conditions per place. [2021-04-28 14:40:01,388 INFO L132 encePairwiseOnDemand]: 159/183 looper letters, 14 selfloop transitions, 22 changer transitions 58/114 dead transitions. [2021-04-28 14:40:01,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 114 transitions, 396 flow [2021-04-28 14:40:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 14:40:01,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 14:40:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 577 transitions. [2021-04-28 14:40:01,409 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6306010928961748 [2021-04-28 14:40:01,410 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 577 transitions. [2021-04-28 14:40:01,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 577 transitions. [2021-04-28 14:40:01,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:01,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 577 transitions. [2021-04-28 14:40:01,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,433 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,435 INFO L185 Difference]: Start difference. First operand has 74 places, 69 transitions, 144 flow. Second operand 5 states and 577 transitions. [2021-04-28 14:40:01,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 114 transitions, 396 flow [2021-04-28 14:40:01,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 114 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:01,444 INFO L241 Difference]: Finished difference. Result has 78 places, 52 transitions, 209 flow [2021-04-28 14:40:01,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=78, PETRI_TRANSITIONS=52} [2021-04-28 14:40:01,448 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 4 predicate places. [2021-04-28 14:40:01,448 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:01,448 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 52 transitions, 209 flow [2021-04-28 14:40:01,449 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 52 transitions, 209 flow [2021-04-28 14:40:01,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 52 transitions, 209 flow [2021-04-28 14:40:01,482 INFO L129 PetriNetUnfolder]: 149/312 cut-off events. [2021-04-28 14:40:01,482 INFO L130 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2021-04-28 14:40:01,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 312 events. 149/312 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 1713 event pairs, 13 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 707. Up to 145 conditions per place. [2021-04-28 14:40:01,489 INFO L146 LiptonReduction]: Number of co-enabled transitions 826 [2021-04-28 14:40:01,498 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:01,498 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:01,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-04-28 14:40:01,500 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 52 transitions, 209 flow [2021-04-28 14:40:01,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:01,501 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:01,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 14:40:01,502 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:01,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:01,503 INFO L82 PathProgramCache]: Analyzing trace with hash -441323291, now seen corresponding path program 1 times [2021-04-28 14:40:01,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:01,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796551497] [2021-04-28 14:40:01,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:01,637 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:40:01,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:01,646 INFO L142 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-04-28 14:40:01,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:01,662 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:01,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:01,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796551497] [2021-04-28 14:40:01,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:01,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:01,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816793345] [2021-04-28 14:40:01,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:01,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:01,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:01,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:01,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:01,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 52 transitions, 209 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:01,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:01,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:01,839 INFO L129 PetriNetUnfolder]: 292/476 cut-off events. [2021-04-28 14:40:01,840 INFO L130 PetriNetUnfolder]: For 163/193 co-relation queries the response was YES. [2021-04-28 14:40:01,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 476 events. 292/476 cut-off events. For 163/193 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2007 event pairs, 0 based on Foata normal form. 14/171 useless extension candidates. Maximal degree in co-relation 1447. Up to 357 conditions per place. [2021-04-28 14:40:01,846 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 14 selfloop transitions, 47 changer transitions 0/81 dead transitions. [2021-04-28 14:40:01,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 81 transitions, 475 flow [2021-04-28 14:40:01,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:01,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:01,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 748 transitions. [2021-04-28 14:40:01,851 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5839188134270101 [2021-04-28 14:40:01,851 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 748 transitions. [2021-04-28 14:40:01,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 748 transitions. [2021-04-28 14:40:01,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:01,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 748 transitions. [2021-04-28 14:40:01,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,860 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,860 INFO L185 Difference]: Start difference. First operand has 41 places, 52 transitions, 209 flow. Second operand 7 states and 748 transitions. [2021-04-28 14:40:01,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 81 transitions, 475 flow [2021-04-28 14:40:01,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 81 transitions, 475 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 14:40:01,866 INFO L241 Difference]: Finished difference. Result has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:01,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=495, PETRI_PLACES=50, PETRI_TRANSITIONS=77} [2021-04-28 14:40:01,867 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -24 predicate places. [2021-04-28 14:40:01,868 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:01,868 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:01,871 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:01,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:01,912 INFO L129 PetriNetUnfolder]: 220/399 cut-off events. [2021-04-28 14:40:01,912 INFO L130 PetriNetUnfolder]: For 256/277 co-relation queries the response was YES. [2021-04-28 14:40:01,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1477 conditions, 399 events. 220/399 cut-off events. For 256/277 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 1988 event pairs, 9 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 1462. Up to 181 conditions per place. [2021-04-28 14:40:01,921 INFO L146 LiptonReduction]: Number of co-enabled transitions 1178 [2021-04-28 14:40:01,939 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:01,939 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:01,939 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-04-28 14:40:01,941 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 77 transitions, 495 flow [2021-04-28 14:40:01,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:01,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:01,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:01,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 14:40:01,942 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:01,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:01,943 INFO L82 PathProgramCache]: Analyzing trace with hash -442091440, now seen corresponding path program 1 times [2021-04-28 14:40:01,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:01,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577681057] [2021-04-28 14:40:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:01,993 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:01,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,002 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-04-28 14:40:02,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:02,012 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:02,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:02,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577681057] [2021-04-28 14:40:02,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:02,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:02,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186614888] [2021-04-28 14:40:02,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:02,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:02,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:02,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:02,025 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:02,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 77 transitions, 495 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:02,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:02,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:02,161 INFO L129 PetriNetUnfolder]: 324/544 cut-off events. [2021-04-28 14:40:02,161 INFO L130 PetriNetUnfolder]: For 485/527 co-relation queries the response was YES. [2021-04-28 14:40:02,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2373 conditions, 544 events. 324/544 cut-off events. For 485/527 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 2494 event pairs, 0 based on Foata normal form. 26/200 useless extension candidates. Maximal degree in co-relation 2356. Up to 389 conditions per place. [2021-04-28 14:40:02,169 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 39 selfloop transitions, 27 changer transitions 3/89 dead transitions. [2021-04-28 14:40:02,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 89 transitions, 737 flow [2021-04-28 14:40:02,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 14:40:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 14:40:02,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-04-28 14:40:02,172 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5814207650273224 [2021-04-28 14:40:02,172 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-04-28 14:40:02,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-04-28 14:40:02,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:02,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-04-28 14:40:02,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,179 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,179 INFO L185 Difference]: Start difference. First operand has 50 places, 77 transitions, 495 flow. Second operand 5 states and 532 transitions. [2021-04-28 14:40:02,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 89 transitions, 737 flow [2021-04-28 14:40:02,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 89 transitions, 644 flow, removed 37 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:02,190 INFO L241 Difference]: Finished difference. Result has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:02,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=505, PETRI_PLACES=53, PETRI_TRANSITIONS=78} [2021-04-28 14:40:02,191 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -21 predicate places. [2021-04-28 14:40:02,191 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:02,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:02,192 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:02,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:02,238 INFO L129 PetriNetUnfolder]: 268/451 cut-off events. [2021-04-28 14:40:02,239 INFO L130 PetriNetUnfolder]: For 441/444 co-relation queries the response was YES. [2021-04-28 14:40:02,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1711 conditions, 451 events. 268/451 cut-off events. For 441/444 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1994 event pairs, 0 based on Foata normal form. 1/148 useless extension candidates. Maximal degree in co-relation 1694. Up to 189 conditions per place. [2021-04-28 14:40:02,248 INFO L146 LiptonReduction]: Number of co-enabled transitions 1216 [2021-04-28 14:40:02,264 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:02,264 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:02,264 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-04-28 14:40:02,266 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 78 transitions, 505 flow [2021-04-28 14:40:02,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,267 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:02,267 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:02,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 14:40:02,267 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:02,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:02,268 INFO L82 PathProgramCache]: Analyzing trace with hash -441466480, now seen corresponding path program 2 times [2021-04-28 14:40:02,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:02,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726135430] [2021-04-28 14:40:02,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:02,311 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:02,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,326 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 14:40:02,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:02,346 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:02,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:02,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726135430] [2021-04-28 14:40:02,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:02,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 14:40:02,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461685064] [2021-04-28 14:40:02,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 14:40:02,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:02,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 14:40:02,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 14:40:02,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:02,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 78 transitions, 505 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:02,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:02,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:02,559 INFO L129 PetriNetUnfolder]: 364/607 cut-off events. [2021-04-28 14:40:02,559 INFO L130 PetriNetUnfolder]: For 729/759 co-relation queries the response was YES. [2021-04-28 14:40:02,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2707 conditions, 607 events. 364/607 cut-off events. For 729/759 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2801 event pairs, 0 based on Foata normal form. 26/219 useless extension candidates. Maximal degree in co-relation 2688. Up to 425 conditions per place. [2021-04-28 14:40:02,568 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 39 selfloop transitions, 52 changer transitions 0/111 dead transitions. [2021-04-28 14:40:02,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 111 transitions, 937 flow [2021-04-28 14:40:02,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 745 transitions. [2021-04-28 14:40:02,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5815768930523029 [2021-04-28 14:40:02,573 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 745 transitions. [2021-04-28 14:40:02,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 745 transitions. [2021-04-28 14:40:02,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:02,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 745 transitions. [2021-04-28 14:40:02,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,581 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,581 INFO L185 Difference]: Start difference. First operand has 53 places, 78 transitions, 505 flow. Second operand 7 states and 745 transitions. [2021-04-28 14:40:02,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 111 transitions, 937 flow [2021-04-28 14:40:02,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 111 transitions, 882 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:02,592 INFO L241 Difference]: Finished difference. Result has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:02,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=821, PETRI_PLACES=58, PETRI_TRANSITIONS=103} [2021-04-28 14:40:02,592 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -16 predicate places. [2021-04-28 14:40:02,592 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:02,593 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:02,593 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:02,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:02,650 INFO L129 PetriNetUnfolder]: 344/566 cut-off events. [2021-04-28 14:40:02,650 INFO L130 PetriNetUnfolder]: For 908/921 co-relation queries the response was YES. [2021-04-28 14:40:02,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2701 conditions, 566 events. 344/566 cut-off events. For 908/921 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 2552 event pairs, 0 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 2682. Up to 237 conditions per place. [2021-04-28 14:40:02,662 INFO L146 LiptonReduction]: Number of co-enabled transitions 1544 [2021-04-28 14:40:02,707 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:02,707 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:02,707 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-04-28 14:40:02,709 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 103 transitions, 821 flow [2021-04-28 14:40:02,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:02,709 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:02,709 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:02,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 14:40:02,710 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:02,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:02,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1134497849, now seen corresponding path program 1 times [2021-04-28 14:40:02,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:02,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463337455] [2021-04-28 14:40:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:02,791 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:40:02,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,798 INFO L142 QuantifierPusher]: treesize reduction 6, result has 60.0 percent of original size [2021-04-28 14:40:02,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:02,807 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-04-28 14:40:02,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:02,824 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:02,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:02,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463337455] [2021-04-28 14:40:02,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738464766] [2021-04-28 14:40:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:02,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:02,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:02,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:02,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:02,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:02,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:02,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:02,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:02,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:02,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:02,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:02,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:03,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:03,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:03,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:03,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:03,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:03,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:03,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:03,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:03,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:03,082 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:03,091 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:03,101 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:03,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:03,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:03,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:03,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:03,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:03,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:03,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086639353] [2021-04-28 14:40:03,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:03,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:03,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:03,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:03,162 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:03,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 103 transitions, 821 flow. Second operand has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:03,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:03,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:03,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:03,584 INFO L129 PetriNetUnfolder]: 516/827 cut-off events. [2021-04-28 14:40:03,584 INFO L130 PetriNetUnfolder]: For 1323/1353 co-relation queries the response was YES. [2021-04-28 14:40:03,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4466 conditions, 827 events. 516/827 cut-off events. For 1323/1353 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3796 event pairs, 0 based on Foata normal form. 18/272 useless extension candidates. Maximal degree in co-relation 4445. Up to 602 conditions per place. [2021-04-28 14:40:03,599 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 43 selfloop transitions, 98 changer transitions 0/161 dead transitions. [2021-04-28 14:40:03,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 161 transitions, 1711 flow [2021-04-28 14:40:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:40:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:40:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1176 transitions. [2021-04-28 14:40:03,604 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5842026825633383 [2021-04-28 14:40:03,605 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1176 transitions. [2021-04-28 14:40:03,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1176 transitions. [2021-04-28 14:40:03,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:03,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1176 transitions. [2021-04-28 14:40:03,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 106.9090909090909) internal successors, (1176), 11 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:03,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:03,615 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:03,615 INFO L185 Difference]: Start difference. First operand has 58 places, 103 transitions, 821 flow. Second operand 11 states and 1176 transitions. [2021-04-28 14:40:03,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 161 transitions, 1711 flow [2021-04-28 14:40:03,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 161 transitions, 1595 flow, removed 50 selfloop flow, removed 2 redundant places. [2021-04-28 14:40:03,632 INFO L241 Difference]: Finished difference. Result has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:03,633 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1599, PETRI_PLACES=69, PETRI_TRANSITIONS=161} [2021-04-28 14:40:03,633 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -5 predicate places. [2021-04-28 14:40:03,633 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:03,633 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:03,634 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:03,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:03,730 INFO L129 PetriNetUnfolder]: 516/835 cut-off events. [2021-04-28 14:40:03,730 INFO L130 PetriNetUnfolder]: For 1830/1842 co-relation queries the response was YES. [2021-04-28 14:40:03,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4439 conditions, 835 events. 516/835 cut-off events. For 1830/1842 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 4065 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 4416. Up to 494 conditions per place. [2021-04-28 14:40:03,748 INFO L146 LiptonReduction]: Number of co-enabled transitions 2176 [2021-04-28 14:40:03,783 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:03,784 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:03,784 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-04-28 14:40:03,785 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 161 transitions, 1599 flow [2021-04-28 14:40:03,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:03,786 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:03,786 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:03,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:04,000 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:04,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:04,001 INFO L82 PathProgramCache]: Analyzing trace with hash -802057991, now seen corresponding path program 1 times [2021-04-28 14:40:04,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:04,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487212025] [2021-04-28 14:40:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:04,037 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:04,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,045 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-04-28 14:40:04,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:04,056 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-04-28 14:40:04,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:04,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:04,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:04,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487212025] [2021-04-28 14:40:04,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118711027] [2021-04-28 14:40:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:04,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:04,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:04,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:04,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:04,186 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:04,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:04,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:04,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:04,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:04,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:04,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:04,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:04,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:04,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:04,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:04,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:04,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:04,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:04,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:04,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:04,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:04,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:04,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:04,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:04,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:04,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630718977] [2021-04-28 14:40:04,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:04,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:04,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:04,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:04,267 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:04,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 161 transitions, 1599 flow. Second operand has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:04,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:04,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:04,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:04,512 INFO L129 PetriNetUnfolder]: 548/896 cut-off events. [2021-04-28 14:40:04,512 INFO L130 PetriNetUnfolder]: For 2454/2496 co-relation queries the response was YES. [2021-04-28 14:40:04,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5532 conditions, 896 events. 548/896 cut-off events. For 2454/2496 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 4282 event pairs, 0 based on Foata normal form. 26/297 useless extension candidates. Maximal degree in co-relation 5507. Up to 661 conditions per place. [2021-04-28 14:40:04,528 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 122 selfloop transitions, 44 changer transitions 3/189 dead transitions. [2021-04-28 14:40:04,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 189 transitions, 2309 flow [2021-04-28 14:40:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 14:40:04,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 14:40:04,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 636 transitions. [2021-04-28 14:40:04,532 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2021-04-28 14:40:04,532 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 636 transitions. [2021-04-28 14:40:04,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 636 transitions. [2021-04-28 14:40:04,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:04,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 636 transitions. [2021-04-28 14:40:04,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:04,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:04,538 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:04,538 INFO L185 Difference]: Start difference. First operand has 69 places, 161 transitions, 1599 flow. Second operand 6 states and 636 transitions. [2021-04-28 14:40:04,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 189 transitions, 2309 flow [2021-04-28 14:40:04,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 189 transitions, 1756 flow, removed 240 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:04,575 INFO L241 Difference]: Finished difference. Result has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:04,576 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1398, PETRI_PLACES=70, PETRI_TRANSITIONS=166} [2021-04-28 14:40:04,576 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, -4 predicate places. [2021-04-28 14:40:04,576 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:04,576 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:04,577 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:04,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:04,669 INFO L129 PetriNetUnfolder]: 536/821 cut-off events. [2021-04-28 14:40:04,670 INFO L130 PetriNetUnfolder]: For 1900/1900 co-relation queries the response was YES. [2021-04-28 14:40:04,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4175 conditions, 821 events. 536/821 cut-off events. For 1900/1900 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3549 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 4151. Up to 522 conditions per place. [2021-04-28 14:40:04,687 INFO L146 LiptonReduction]: Number of co-enabled transitions 2230 [2021-04-28 14:40:04,710 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:04,710 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:04,710 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 134 [2021-04-28 14:40:04,711 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 166 transitions, 1398 flow [2021-04-28 14:40:04,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:04,712 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:04,712 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:04,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:04,927 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:04,927 INFO L82 PathProgramCache]: Analyzing trace with hash -800558831, now seen corresponding path program 2 times [2021-04-28 14:40:04,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:04,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591555341] [2021-04-28 14:40:04,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:04,987 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:04,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:04,995 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:04,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,009 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-04-28 14:40:05,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:05,022 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:05,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:05,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591555341] [2021-04-28 14:40:05,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910024437] [2021-04-28 14:40:05,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:05,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:05,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:05,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:05,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:05,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:05,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:05,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:05,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:05,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:05,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:05,208 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:40:05,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:05,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:05,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:05,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:05,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:05,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:05,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:05,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:05,239 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:05,240 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:05,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:05,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:05,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-04-28 14:40:05,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537090409] [2021-04-28 14:40:05,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-28 14:40:05,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:05,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-28 14:40:05,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-04-28 14:40:05,260 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:05,261 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 166 transitions, 1398 flow. Second operand has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:05,261 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:05,261 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:05,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:05,580 INFO L129 PetriNetUnfolder]: 568/929 cut-off events. [2021-04-28 14:40:05,581 INFO L130 PetriNetUnfolder]: For 2570/2600 co-relation queries the response was YES. [2021-04-28 14:40:05,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5296 conditions, 929 events. 568/929 cut-off events. For 2570/2600 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 4477 event pairs, 0 based on Foata normal form. 26/306 useless extension candidates. Maximal degree in co-relation 5270. Up to 637 conditions per place. [2021-04-28 14:40:05,596 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 101 selfloop transitions, 66 changer transitions 3/190 dead transitions. [2021-04-28 14:40:05,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 190 transitions, 1930 flow [2021-04-28 14:40:05,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 744 transitions. [2021-04-28 14:40:05,600 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5807962529274004 [2021-04-28 14:40:05,600 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 744 transitions. [2021-04-28 14:40:05,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 744 transitions. [2021-04-28 14:40:05,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:05,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 744 transitions. [2021-04-28 14:40:05,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:05,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:05,607 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:05,607 INFO L185 Difference]: Start difference. First operand has 70 places, 166 transitions, 1398 flow. Second operand 7 states and 744 transitions. [2021-04-28 14:40:05,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 190 transitions, 1930 flow [2021-04-28 14:40:05,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 190 transitions, 1881 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 14:40:05,627 INFO L241 Difference]: Finished difference. Result has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:05,627 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1349, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1564, PETRI_PLACES=74, PETRI_TRANSITIONS=167} [2021-04-28 14:40:05,628 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2021-04-28 14:40:05,628 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:05,628 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:05,628 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:05,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:05,730 INFO L129 PetriNetUnfolder]: 556/897 cut-off events. [2021-04-28 14:40:05,730 INFO L130 PetriNetUnfolder]: For 2209/2209 co-relation queries the response was YES. [2021-04-28 14:40:05,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4738 conditions, 897 events. 556/897 cut-off events. For 2209/2209 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 4375 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 4713. Up to 550 conditions per place. [2021-04-28 14:40:05,750 INFO L146 LiptonReduction]: Number of co-enabled transitions 2244 [2021-04-28 14:40:05,788 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:05,788 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:05,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 160 [2021-04-28 14:40:05,789 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 167 transitions, 1564 flow [2021-04-28 14:40:05,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:05,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:05,791 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:06,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:06,006 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:06,007 INFO L82 PathProgramCache]: Analyzing trace with hash -800507681, now seen corresponding path program 1 times [2021-04-28 14:40:06,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:06,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054340366] [2021-04-28 14:40:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:06,037 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:06,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,044 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:06,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:06,053 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:06,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:06,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:06,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:06,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054340366] [2021-04-28 14:40:06,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126917264] [2021-04-28 14:40:06,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:06,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2021-04-28 14:40:06,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:06,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:06,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:06,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:06,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:06,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:06,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:06,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:06,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:06,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:06,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:06,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:06,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:06,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:06,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:06,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:06,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:06,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:06,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:06,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:06,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:06,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:06,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:06,236 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:06,238 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:06,240 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:06,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:06,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:06,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-04-28 14:40:06,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067271985] [2021-04-28 14:40:06,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-28 14:40:06,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:06,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-28 14:40:06,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-04-28 14:40:06,254 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:06,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 167 transitions, 1564 flow. Second operand has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:06,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:06,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:06,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:06,612 INFO L129 PetriNetUnfolder]: 608/992 cut-off events. [2021-04-28 14:40:06,612 INFO L130 PetriNetUnfolder]: For 3256/3286 co-relation queries the response was YES. [2021-04-28 14:40:06,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6027 conditions, 992 events. 608/992 cut-off events. For 3256/3286 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 4857 event pairs, 0 based on Foata normal form. 26/325 useless extension candidates. Maximal degree in co-relation 6000. Up to 673 conditions per place. [2021-04-28 14:40:06,630 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 101 selfloop transitions, 95 changer transitions 0/216 dead transitions. [2021-04-28 14:40:06,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 216 transitions, 2490 flow [2021-04-28 14:40:06,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:06,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-28 14:40:06,635 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581056466302368 [2021-04-28 14:40:06,635 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-28 14:40:06,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-28 14:40:06,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:06,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-28 14:40:06,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:06,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:06,644 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:06,644 INFO L185 Difference]: Start difference. First operand has 74 places, 167 transitions, 1564 flow. Second operand 9 states and 957 transitions. [2021-04-28 14:40:06,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 216 transitions, 2490 flow [2021-04-28 14:40:06,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 216 transitions, 2324 flow, removed 18 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:06,672 INFO L241 Difference]: Finished difference. Result has 79 places, 196 transitions, 2092 flow [2021-04-28 14:40:06,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1430, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2092, PETRI_PLACES=79, PETRI_TRANSITIONS=196} [2021-04-28 14:40:06,673 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2021-04-28 14:40:06,673 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:06,673 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 196 transitions, 2092 flow [2021-04-28 14:40:06,673 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 196 transitions, 2092 flow [2021-04-28 14:40:06,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 196 transitions, 2092 flow [2021-04-28 14:40:06,785 INFO L129 PetriNetUnfolder]: 608/976 cut-off events. [2021-04-28 14:40:06,786 INFO L130 PetriNetUnfolder]: For 2843/2843 co-relation queries the response was YES. [2021-04-28 14:40:06,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 976 events. 608/976 cut-off events. For 2843/2843 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 4754 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 5690. Up to 626 conditions per place. [2021-04-28 14:40:06,806 INFO L146 LiptonReduction]: Number of co-enabled transitions 2572 [2021-04-28 14:40:06,838 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:06,839 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:06,839 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-04-28 14:40:06,840 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 196 transitions, 2092 flow [2021-04-28 14:40:06,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:06,841 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:06,841 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:07,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:07,055 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:07,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:07,057 INFO L82 PathProgramCache]: Analyzing trace with hash 2079376961, now seen corresponding path program 1 times [2021-04-28 14:40:07,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:07,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017032944] [2021-04-28 14:40:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:07,122 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:07,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:07,128 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:40:07,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:07,136 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:07,137 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:07,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:07,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:07,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017032944] [2021-04-28 14:40:07,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:07,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:07,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81055015] [2021-04-28 14:40:07,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:07,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:07,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:07,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:07,168 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:07,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 196 transitions, 2092 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:07,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:07,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:07,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:07,433 INFO L129 PetriNetUnfolder]: 624/1024 cut-off events. [2021-04-28 14:40:07,433 INFO L130 PetriNetUnfolder]: For 3811/3841 co-relation queries the response was YES. [2021-04-28 14:40:07,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6807 conditions, 1024 events. 624/1024 cut-off events. For 3811/3841 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 5116 event pairs, 0 based on Foata normal form. 22/329 useless extension candidates. Maximal degree in co-relation 6778. Up to 731 conditions per place. [2021-04-28 14:40:07,484 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 127 selfloop transitions, 63 changer transitions 6/216 dead transitions. [2021-04-28 14:40:07,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 216 transitions, 2668 flow [2021-04-28 14:40:07,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:07,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 744 transitions. [2021-04-28 14:40:07,489 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5807962529274004 [2021-04-28 14:40:07,489 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 744 transitions. [2021-04-28 14:40:07,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 744 transitions. [2021-04-28 14:40:07,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:07,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 744 transitions. [2021-04-28 14:40:07,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.28571428571429) internal successors, (744), 7 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:07,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:07,496 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:07,497 INFO L185 Difference]: Start difference. First operand has 79 places, 196 transitions, 2092 flow. Second operand 7 states and 744 transitions. [2021-04-28 14:40:07,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 216 transitions, 2668 flow [2021-04-28 14:40:07,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 216 transitions, 2407 flow, removed 110 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:07,526 INFO L241 Difference]: Finished difference. Result has 82 places, 194 transitions, 1982 flow [2021-04-28 14:40:07,526 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1831, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1982, PETRI_PLACES=82, PETRI_TRANSITIONS=194} [2021-04-28 14:40:07,527 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 8 predicate places. [2021-04-28 14:40:07,527 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:07,527 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 194 transitions, 1982 flow [2021-04-28 14:40:07,527 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 194 transitions, 1982 flow [2021-04-28 14:40:07,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 194 transitions, 1982 flow [2021-04-28 14:40:07,661 INFO L129 PetriNetUnfolder]: 600/988 cut-off events. [2021-04-28 14:40:07,661 INFO L130 PetriNetUnfolder]: For 3490/3514 co-relation queries the response was YES. [2021-04-28 14:40:07,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5845 conditions, 988 events. 600/988 cut-off events. For 3490/3514 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 5029 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 5816. Up to 562 conditions per place. [2021-04-28 14:40:07,682 INFO L146 LiptonReduction]: Number of co-enabled transitions 2556 [2021-04-28 14:40:07,713 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:07,713 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:07,713 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 186 [2021-04-28 14:40:07,714 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 194 transitions, 1982 flow [2021-04-28 14:40:07,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:07,715 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:07,715 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:07,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 14:40:07,715 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:07,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:07,717 INFO L82 PathProgramCache]: Analyzing trace with hash 928944542, now seen corresponding path program 1 times [2021-04-28 14:40:07,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:07,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085810210] [2021-04-28 14:40:07,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:07,775 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:07,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:07,781 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:40:07,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:07,789 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-04-28 14:40:07,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:07,799 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:07,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:07,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:07,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085810210] [2021-04-28 14:40:07,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:07,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:07,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261146527] [2021-04-28 14:40:07,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:07,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:07,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:07,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:07,818 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:07,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 194 transitions, 1982 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:07,820 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:07,820 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:07,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:08,163 INFO L129 PetriNetUnfolder]: 712/1200 cut-off events. [2021-04-28 14:40:08,164 INFO L130 PetriNetUnfolder]: For 5650/5692 co-relation queries the response was YES. [2021-04-28 14:40:08,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8075 conditions, 1200 events. 712/1200 cut-off events. For 5650/5692 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 6614 event pairs, 0 based on Foata normal form. 38/407 useless extension candidates. Maximal degree in co-relation 8044. Up to 775 conditions per place. [2021-04-28 14:40:08,186 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 84 selfloop transitions, 135 changer transitions 0/239 dead transitions. [2021-04-28 14:40:08,186 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 239 transitions, 3008 flow [2021-04-28 14:40:08,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:08,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-28 14:40:08,191 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581056466302368 [2021-04-28 14:40:08,191 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-28 14:40:08,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-28 14:40:08,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:08,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-28 14:40:08,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:08,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:08,201 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:08,201 INFO L185 Difference]: Start difference. First operand has 82 places, 194 transitions, 1982 flow. Second operand 9 states and 957 transitions. [2021-04-28 14:40:08,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 239 transitions, 3008 flow [2021-04-28 14:40:08,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 239 transitions, 2888 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:08,243 INFO L241 Difference]: Finished difference. Result has 87 places, 227 transitions, 2805 flow [2021-04-28 14:40:08,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=1866, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2805, PETRI_PLACES=87, PETRI_TRANSITIONS=227} [2021-04-28 14:40:08,244 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 13 predicate places. [2021-04-28 14:40:08,244 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:08,245 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 227 transitions, 2805 flow [2021-04-28 14:40:08,245 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 227 transitions, 2805 flow [2021-04-28 14:40:08,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 227 transitions, 2805 flow [2021-04-28 14:40:08,423 INFO L129 PetriNetUnfolder]: 712/1200 cut-off events. [2021-04-28 14:40:08,423 INFO L130 PetriNetUnfolder]: For 5009/5045 co-relation queries the response was YES. [2021-04-28 14:40:08,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8195 conditions, 1200 events. 712/1200 cut-off events. For 5009/5045 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 6645 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 8164. Up to 726 conditions per place. [2021-04-28 14:40:08,453 INFO L146 LiptonReduction]: Number of co-enabled transitions 2862 [2021-04-28 14:40:08,487 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:08,487 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:08,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 243 [2021-04-28 14:40:08,488 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 227 transitions, 2805 flow [2021-04-28 14:40:08,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:08,489 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:08,489 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:08,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 14:40:08,489 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:08,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:08,490 INFO L82 PathProgramCache]: Analyzing trace with hash 927385800, now seen corresponding path program 1 times [2021-04-28 14:40:08,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:08,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686613797] [2021-04-28 14:40:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:08,546 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:08,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,553 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:08,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:08,562 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:40:08,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,571 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:08,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:08,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686613797] [2021-04-28 14:40:08,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 14:40:08,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 14:40:08,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288425173] [2021-04-28 14:40:08,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 14:40:08,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:08,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 14:40:08,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 14:40:08,584 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:08,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 227 transitions, 2805 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:08,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:08,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:08,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:09,049 INFO L129 PetriNetUnfolder]: 808/1440 cut-off events. [2021-04-28 14:40:09,050 INFO L130 PetriNetUnfolder]: For 7094/7136 co-relation queries the response was YES. [2021-04-28 14:40:09,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10917 conditions, 1440 events. 808/1440 cut-off events. For 7094/7136 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 8949 event pairs, 0 based on Foata normal form. 38/477 useless extension candidates. Maximal degree in co-relation 10884. Up to 955 conditions per place. [2021-04-28 14:40:09,085 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 142 selfloop transitions, 110 changer transitions 0/272 dead transitions. [2021-04-28 14:40:09,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 272 transitions, 3999 flow [2021-04-28 14:40:09,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-28 14:40:09,091 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581056466302368 [2021-04-28 14:40:09,091 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-28 14:40:09,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-28 14:40:09,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:09,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-28 14:40:09,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:09,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:09,100 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:09,100 INFO L185 Difference]: Start difference. First operand has 87 places, 227 transitions, 2805 flow. Second operand 9 states and 957 transitions. [2021-04-28 14:40:09,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 272 transitions, 3999 flow [2021-04-28 14:40:09,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 272 transitions, 3818 flow, removed 58 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:09,199 INFO L241 Difference]: Finished difference. Result has 93 places, 256 transitions, 3514 flow [2021-04-28 14:40:09,200 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=2628, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3514, PETRI_PLACES=93, PETRI_TRANSITIONS=256} [2021-04-28 14:40:09,202 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2021-04-28 14:40:09,202 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:09,202 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 256 transitions, 3514 flow [2021-04-28 14:40:09,203 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 256 transitions, 3514 flow [2021-04-28 14:40:09,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 256 transitions, 3514 flow [2021-04-28 14:40:09,425 INFO L129 PetriNetUnfolder]: 808/1452 cut-off events. [2021-04-28 14:40:09,425 INFO L130 PetriNetUnfolder]: For 6151/6187 co-relation queries the response was YES. [2021-04-28 14:40:09,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10689 conditions, 1452 events. 808/1452 cut-off events. For 6151/6187 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 9395 event pairs, 0 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 10655. Up to 858 conditions per place. [2021-04-28 14:40:09,461 INFO L146 LiptonReduction]: Number of co-enabled transitions 3136 [2021-04-28 14:40:09,501 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:09,501 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:09,501 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 299 [2021-04-28 14:40:09,502 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 256 transitions, 3514 flow [2021-04-28 14:40:09,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:09,503 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:09,503 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:09,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 14:40:09,503 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:09,504 INFO L82 PathProgramCache]: Analyzing trace with hash 351921392, now seen corresponding path program 3 times [2021-04-28 14:40:09,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:09,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645082082] [2021-04-28 14:40:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:09,542 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:09,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,550 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-04-28 14:40:09,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:09,563 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-04-28 14:40:09,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:09,574 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:09,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:09,586 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:09,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:09,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645082082] [2021-04-28 14:40:09,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080662188] [2021-04-28 14:40:09,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:09,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-04-28 14:40:09,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:09,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:09,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:09,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:09,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:09,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:09,717 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:09,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:09,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:09,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:09,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:09,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:09,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:09,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:09,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:09,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:09,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:09,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:09,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:09,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:09,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:09,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:09,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:09,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:09,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:09,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:09,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:09,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:09,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:09,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:09,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:09,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:09,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:09,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:09,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:09,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:09,818 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:09,819 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:09,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:09,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:09,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:09,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378852512] [2021-04-28 14:40:09,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:09,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:09,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:09,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:09,842 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:09,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 256 transitions, 3514 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:09,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:09,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:09,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:10,219 INFO L129 PetriNetUnfolder]: 840/1513 cut-off events. [2021-04-28 14:40:10,219 INFO L130 PetriNetUnfolder]: For 7675/7717 co-relation queries the response was YES. [2021-04-28 14:40:10,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12468 conditions, 1513 events. 840/1513 cut-off events. For 7675/7717 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 9526 event pairs, 0 based on Foata normal form. 26/483 useless extension candidates. Maximal degree in co-relation 12432. Up to 1106 conditions per place. [2021-04-28 14:40:10,244 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 211 selfloop transitions, 54 changer transitions 3/288 dead transitions. [2021-04-28 14:40:10,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 288 transitions, 4478 flow [2021-04-28 14:40:10,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 14:40:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 14:40:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 740 transitions. [2021-04-28 14:40:10,247 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5776736924277908 [2021-04-28 14:40:10,248 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 740 transitions. [2021-04-28 14:40:10,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 740 transitions. [2021-04-28 14:40:10,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:10,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 740 transitions. [2021-04-28 14:40:10,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 105.71428571428571) internal successors, (740), 7 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:10,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:10,254 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:10,255 INFO L185 Difference]: Start difference. First operand has 93 places, 256 transitions, 3514 flow. Second operand 7 states and 740 transitions. [2021-04-28 14:40:10,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 288 transitions, 4478 flow [2021-04-28 14:40:10,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 288 transitions, 4179 flow, removed 129 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:10,409 INFO L241 Difference]: Finished difference. Result has 97 places, 261 transitions, 3538 flow [2021-04-28 14:40:10,409 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=3287, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3538, PETRI_PLACES=97, PETRI_TRANSITIONS=261} [2021-04-28 14:40:10,409 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 23 predicate places. [2021-04-28 14:40:10,409 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:10,410 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 261 transitions, 3538 flow [2021-04-28 14:40:10,410 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 261 transitions, 3538 flow [2021-04-28 14:40:10,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 261 transitions, 3538 flow [2021-04-28 14:40:10,585 INFO L129 PetriNetUnfolder]: 828/1477 cut-off events. [2021-04-28 14:40:10,585 INFO L130 PetriNetUnfolder]: For 5810/5846 co-relation queries the response was YES. [2021-04-28 14:40:10,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10436 conditions, 1477 events. 828/1477 cut-off events. For 5810/5846 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 9368 event pairs, 0 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 10399. Up to 886 conditions per place. [2021-04-28 14:40:10,616 INFO L146 LiptonReduction]: Number of co-enabled transitions 3190 [2021-04-28 14:40:10,654 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:10,655 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:10,655 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 246 [2021-04-28 14:40:10,656 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 261 transitions, 3538 flow [2021-04-28 14:40:10,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:10,657 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:10,657 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:10,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-04-28 14:40:10,871 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:10,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:10,872 INFO L82 PathProgramCache]: Analyzing trace with hash 952508014, now seen corresponding path program 2 times [2021-04-28 14:40:10,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:10,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737791855] [2021-04-28 14:40:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:10,922 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:10,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,929 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:10,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:10,938 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-04-28 14:40:10,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:10,949 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:10,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:10,960 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:10,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:10,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:10,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737791855] [2021-04-28 14:40:10,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272810669] [2021-04-28 14:40:10,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:11,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:40:11,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:11,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:11,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:11,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:11,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:11,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:11,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:11,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:11,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:11,116 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:40:11,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:11,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:11,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:11,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:11,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:11,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:11,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:11,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:11,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:11,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:11,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:11,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:11,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:11,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:11,174 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:11,175 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:11,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:11,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:11,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:11,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401078716] [2021-04-28 14:40:11,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:11,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:11,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:11,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:11,200 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:11,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 261 transitions, 3538 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:11,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:11,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:11,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:11,647 INFO L129 PetriNetUnfolder]: 860/1547 cut-off events. [2021-04-28 14:40:11,648 INFO L130 PetriNetUnfolder]: For 7507/7549 co-relation queries the response was YES. [2021-04-28 14:40:11,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12205 conditions, 1547 events. 860/1547 cut-off events. For 7507/7549 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 9739 event pairs, 0 based on Foata normal form. 26/492 useless extension candidates. Maximal degree in co-relation 12166. Up to 1057 conditions per place. [2021-04-28 14:40:11,673 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 181 selfloop transitions, 89 changer transitions 3/293 dead transitions. [2021-04-28 14:40:11,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 293 transitions, 4456 flow [2021-04-28 14:40:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 14:40:11,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 14:40:11,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 848 transitions. [2021-04-28 14:40:11,677 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2021-04-28 14:40:11,677 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 848 transitions. [2021-04-28 14:40:11,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 848 transitions. [2021-04-28 14:40:11,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:11,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 848 transitions. [2021-04-28 14:40:11,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:11,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:11,684 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:11,685 INFO L185 Difference]: Start difference. First operand has 97 places, 261 transitions, 3538 flow. Second operand 8 states and 848 transitions. [2021-04-28 14:40:11,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 293 transitions, 4456 flow [2021-04-28 14:40:11,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 293 transitions, 4378 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-04-28 14:40:11,760 INFO L241 Difference]: Finished difference. Result has 102 places, 266 transitions, 3836 flow [2021-04-28 14:40:11,760 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=3468, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3836, PETRI_PLACES=102, PETRI_TRANSITIONS=266} [2021-04-28 14:40:11,761 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 28 predicate places. [2021-04-28 14:40:11,761 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:11,761 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 266 transitions, 3836 flow [2021-04-28 14:40:11,761 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 266 transitions, 3836 flow [2021-04-28 14:40:11,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 266 transitions, 3836 flow [2021-04-28 14:40:11,941 INFO L129 PetriNetUnfolder]: 848/1511 cut-off events. [2021-04-28 14:40:11,942 INFO L130 PetriNetUnfolder]: For 6428/6464 co-relation queries the response was YES. [2021-04-28 14:40:11,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10978 conditions, 1511 events. 848/1511 cut-off events. For 6428/6464 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 9660 event pairs, 0 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 10939. Up to 914 conditions per place. [2021-04-28 14:40:11,974 INFO L146 LiptonReduction]: Number of co-enabled transitions 3244 [2021-04-28 14:40:12,012 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:12,013 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:12,013 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-04-28 14:40:12,014 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 266 transitions, 3836 flow [2021-04-28 14:40:12,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:12,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:12,015 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:12,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:12,229 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:12,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:12,230 INFO L82 PathProgramCache]: Analyzing trace with hash 954006244, now seen corresponding path program 3 times [2021-04-28 14:40:12,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:12,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558936016] [2021-04-28 14:40:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:12,254 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:12,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,261 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:12,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:12,269 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:12,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:12,279 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:12,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:12,291 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:12,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:12,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558936016] [2021-04-28 14:40:12,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920548125] [2021-04-28 14:40:12,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:12,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-04-28 14:40:12,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:12,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:12,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:12,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:12,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:12,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:12,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:12,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:12,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:12,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:12,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:12,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:12,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:12,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:12,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:12,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:12,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:12,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:12,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:12,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:12,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:12,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:12,444 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:40:12,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:12,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:12,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:12,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:12,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:12,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:12,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:12,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:12,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:12,470 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:12,470 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:12,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:12,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:12,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:12,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211239601] [2021-04-28 14:40:12,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:12,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:12,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:12,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:12,489 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:12,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 266 transitions, 3836 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:12,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:12,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:12,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:13,003 INFO L129 PetriNetUnfolder]: 880/1556 cut-off events. [2021-04-28 14:40:13,003 INFO L130 PetriNetUnfolder]: For 8829/8871 co-relation queries the response was YES. [2021-04-28 14:40:13,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12735 conditions, 1556 events. 880/1556 cut-off events. For 8829/8871 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 9601 event pairs, 0 based on Foata normal form. 26/496 useless extension candidates. Maximal degree in co-relation 12694. Up to 1033 conditions per place. [2021-04-28 14:40:13,028 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 160 selfloop transitions, 111 changer transitions 3/294 dead transitions. [2021-04-28 14:40:13,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 294 transitions, 4724 flow [2021-04-28 14:40:13,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:13,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:13,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 956 transitions. [2021-04-28 14:40:13,035 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5804493017607771 [2021-04-28 14:40:13,035 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 956 transitions. [2021-04-28 14:40:13,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 956 transitions. [2021-04-28 14:40:13,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:13,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 956 transitions. [2021-04-28 14:40:13,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:13,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:13,045 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:13,045 INFO L185 Difference]: Start difference. First operand has 102 places, 266 transitions, 3836 flow. Second operand 9 states and 956 transitions. [2021-04-28 14:40:13,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 294 transitions, 4724 flow [2021-04-28 14:40:13,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 294 transitions, 4568 flow, removed 21 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:13,143 INFO L241 Difference]: Finished difference. Result has 105 places, 267 transitions, 4079 flow [2021-04-28 14:40:13,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=3700, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4079, PETRI_PLACES=105, PETRI_TRANSITIONS=267} [2021-04-28 14:40:13,144 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 31 predicate places. [2021-04-28 14:40:13,144 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:13,144 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 267 transitions, 4079 flow [2021-04-28 14:40:13,144 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 267 transitions, 4079 flow [2021-04-28 14:40:13,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 267 transitions, 4079 flow [2021-04-28 14:40:13,330 INFO L129 PetriNetUnfolder]: 868/1545 cut-off events. [2021-04-28 14:40:13,330 INFO L130 PetriNetUnfolder]: For 7438/7474 co-relation queries the response was YES. [2021-04-28 14:40:13,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11536 conditions, 1545 events. 868/1545 cut-off events. For 7438/7474 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 9829 event pairs, 0 based on Foata normal form. 0/461 useless extension candidates. Maximal degree in co-relation 11497. Up to 942 conditions per place. [2021-04-28 14:40:13,362 INFO L146 LiptonReduction]: Number of co-enabled transitions 3258 [2021-04-28 14:40:13,400 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:13,400 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:13,400 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 256 [2021-04-28 14:40:13,401 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 267 transitions, 4079 flow [2021-04-28 14:40:13,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:13,417 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:13,417 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:13,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-04-28 14:40:13,618 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:13,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:13,619 INFO L82 PathProgramCache]: Analyzing trace with hash 954057394, now seen corresponding path program 3 times [2021-04-28 14:40:13,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:13,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96080118] [2021-04-28 14:40:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:13,656 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:13,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,662 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:13,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,670 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:13,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,679 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:13,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,689 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:13,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:13,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96080118] [2021-04-28 14:40:13,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385859184] [2021-04-28 14:40:13,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:13,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-04-28 14:40:13,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:13,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:13,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:13,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:13,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:13,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:13,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:13,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:13,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:13,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:13,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:13,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:13,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:13,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:13,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:13,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:13,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:13,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:13,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:13,886 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:13,887 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:13,888 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:13,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:13,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:13,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-04-28 14:40:13,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337479276] [2021-04-28 14:40:13,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:40:13,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:13,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:40:13,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:40:13,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:13,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 267 transitions, 4079 flow. Second operand has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:13,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:13,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:13,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:14,403 INFO L129 PetriNetUnfolder]: 920/1639 cut-off events. [2021-04-28 14:40:14,403 INFO L130 PetriNetUnfolder]: For 8754/8796 co-relation queries the response was YES. [2021-04-28 14:40:14,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13579 conditions, 1639 events. 920/1639 cut-off events. For 8754/8796 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 10311 event pairs, 0 based on Foata normal form. 26/519 useless extension candidates. Maximal degree in co-relation 13538. Up to 1069 conditions per place. [2021-04-28 14:40:14,430 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 160 selfloop transitions, 144 changer transitions 0/324 dead transitions. [2021-04-28 14:40:14,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 324 transitions, 5677 flow [2021-04-28 14:40:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:40:14,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:40:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1169 transitions. [2021-04-28 14:40:14,433 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5807252856433184 [2021-04-28 14:40:14,433 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1169 transitions. [2021-04-28 14:40:14,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1169 transitions. [2021-04-28 14:40:14,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:14,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1169 transitions. [2021-04-28 14:40:14,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 106.27272727272727) internal successors, (1169), 11 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:14,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:14,442 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:14,442 INFO L185 Difference]: Start difference. First operand has 105 places, 267 transitions, 4079 flow. Second operand 11 states and 1169 transitions. [2021-04-28 14:40:14,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 324 transitions, 5677 flow [2021-04-28 14:40:14,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 324 transitions, 5422 flow, removed 18 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:14,520 INFO L241 Difference]: Finished difference. Result has 110 places, 300 transitions, 5022 flow [2021-04-28 14:40:14,521 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=3860, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5022, PETRI_PLACES=110, PETRI_TRANSITIONS=300} [2021-04-28 14:40:14,521 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 36 predicate places. [2021-04-28 14:40:14,521 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:14,522 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 300 transitions, 5022 flow [2021-04-28 14:40:14,522 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 300 transitions, 5022 flow [2021-04-28 14:40:14,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 300 transitions, 5022 flow [2021-04-28 14:40:14,740 INFO L129 PetriNetUnfolder]: 920/1647 cut-off events. [2021-04-28 14:40:14,740 INFO L130 PetriNetUnfolder]: For 8054/8090 co-relation queries the response was YES. [2021-04-28 14:40:14,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12991 conditions, 1647 events. 920/1647 cut-off events. For 8054/8090 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 10824 event pairs, 0 based on Foata normal form. 0/489 useless extension candidates. Maximal degree in co-relation 12950. Up to 1018 conditions per place. [2021-04-28 14:40:14,815 INFO L146 LiptonReduction]: Number of co-enabled transitions 3618 [2021-04-28 14:40:14,869 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:14,870 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:14,870 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 349 [2021-04-28 14:40:14,871 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 300 transitions, 5022 flow [2021-04-28 14:40:14,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:14,871 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:14,872 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:15,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-04-28 14:40:15,087 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:15,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1779014623, now seen corresponding path program 1 times [2021-04-28 14:40:15,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:15,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624453074] [2021-04-28 14:40:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:15,133 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:15,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,139 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:40:15,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,147 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:15,147 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:15,166 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-04-28 14:40:15,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,179 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:15,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:15,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624453074] [2021-04-28 14:40:15,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934085561] [2021-04-28 14:40:15,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:15,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:15,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:15,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:15,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:15,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:15,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:15,311 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:15,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:15,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:15,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:15,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:15,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:15,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:15,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:15,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:15,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:15,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:15,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:15,377 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:15,378 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:15,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:15,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:15,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:15,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:15,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804455796] [2021-04-28 14:40:15,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:15,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:15,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:15,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:15,399 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:15,401 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 300 transitions, 5022 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:15,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:15,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:15,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:15,915 INFO L129 PetriNetUnfolder]: 936/1671 cut-off events. [2021-04-28 14:40:15,915 INFO L130 PetriNetUnfolder]: For 9981/10013 co-relation queries the response was YES. [2021-04-28 14:40:15,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14668 conditions, 1671 events. 936/1671 cut-off events. For 9981/10013 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 10689 event pairs, 0 based on Foata normal form. 18/519 useless extension candidates. Maximal degree in co-relation 14625. Up to 1169 conditions per place. [2021-04-28 14:40:15,945 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 216 selfloop transitions, 87 changer transitions 9/332 dead transitions. [2021-04-28 14:40:15,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 332 transitions, 6030 flow [2021-04-28 14:40:15,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:40:15,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:40:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1059 transitions. [2021-04-28 14:40:15,948 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.578688524590164 [2021-04-28 14:40:15,948 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1059 transitions. [2021-04-28 14:40:15,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1059 transitions. [2021-04-28 14:40:15,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:15,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1059 transitions. [2021-04-28 14:40:15,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.9) internal successors, (1059), 10 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:15,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:15,954 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:15,954 INFO L185 Difference]: Start difference. First operand has 110 places, 300 transitions, 5022 flow. Second operand 10 states and 1059 transitions. [2021-04-28 14:40:15,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 332 transitions, 6030 flow [2021-04-28 14:40:16,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 332 transitions, 5454 flow, removed 252 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:16,067 INFO L241 Difference]: Finished difference. Result has 116 places, 307 transitions, 4740 flow [2021-04-28 14:40:16,068 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=4446, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4740, PETRI_PLACES=116, PETRI_TRANSITIONS=307} [2021-04-28 14:40:16,068 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 42 predicate places. [2021-04-28 14:40:16,068 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:16,068 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 307 transitions, 4740 flow [2021-04-28 14:40:16,069 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 307 transitions, 4740 flow [2021-04-28 14:40:16,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 307 transitions, 4740 flow [2021-04-28 14:40:16,250 INFO L129 PetriNetUnfolder]: 900/1641 cut-off events. [2021-04-28 14:40:16,251 INFO L130 PetriNetUnfolder]: For 9382/9442 co-relation queries the response was YES. [2021-04-28 14:40:16,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12767 conditions, 1641 events. 900/1641 cut-off events. For 9382/9442 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 10874 event pairs, 0 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 12722. Up to 934 conditions per place. [2021-04-28 14:40:16,280 INFO L146 LiptonReduction]: Number of co-enabled transitions 3746 [2021-04-28 14:40:16,323 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:16,323 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:16,323 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 255 [2021-04-28 14:40:16,324 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 307 transitions, 4740 flow [2021-04-28 14:40:16,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:16,325 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:16,325 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:16,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-04-28 14:40:16,539 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:16,540 INFO L82 PathProgramCache]: Analyzing trace with hash 55599500, now seen corresponding path program 1 times [2021-04-28 14:40:16,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:16,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157523536] [2021-04-28 14:40:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:16,567 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:16,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,573 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:40:16,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,581 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:40:16,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,590 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-04-28 14:40:16,591 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:16,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:16,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:16,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157523536] [2021-04-28 14:40:16,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836571870] [2021-04-28 14:40:16,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:16,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:16,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:16,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:16,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:16,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:16,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:16,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:16,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:16,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:16,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:16,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:16,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:16,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:16,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:16,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:16,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:16,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:16,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:16,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:16,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:16,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:16,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:16,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:16,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:16,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:16,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:16,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:16,799 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:16,802 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:16,802 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:16,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:16,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:16,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:16,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305478536] [2021-04-28 14:40:16,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:16,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:16,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:16,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:16,818 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:16,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 307 transitions, 4740 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:16,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:16,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:16,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:17,751 INFO L129 PetriNetUnfolder]: 1156/2254 cut-off events. [2021-04-28 14:40:17,751 INFO L130 PetriNetUnfolder]: For 17859/17913 co-relation queries the response was YES. [2021-04-28 14:40:17,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19493 conditions, 2254 events. 1156/2254 cut-off events. For 17859/17913 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 16828 event pairs, 0 based on Foata normal form. 86/760 useless extension candidates. Maximal degree in co-relation 19446. Up to 1354 conditions per place. [2021-04-28 14:40:17,780 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 26 selfloop transitions, 347 changer transitions 12/405 dead transitions. [2021-04-28 14:40:17,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 405 transitions, 7610 flow [2021-04-28 14:40:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-28 14:40:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-04-28 14:40:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1923 transitions. [2021-04-28 14:40:17,785 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5837887067395264 [2021-04-28 14:40:17,785 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1923 transitions. [2021-04-28 14:40:17,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1923 transitions. [2021-04-28 14:40:17,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:17,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1923 transitions. [2021-04-28 14:40:17,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 106.83333333333333) internal successors, (1923), 18 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:17,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 183.0) internal successors, (3477), 19 states have internal predecessors, (3477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:17,796 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 183.0) internal successors, (3477), 19 states have internal predecessors, (3477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:17,797 INFO L185 Difference]: Start difference. First operand has 116 places, 307 transitions, 4740 flow. Second operand 18 states and 1923 transitions. [2021-04-28 14:40:17,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 405 transitions, 7610 flow [2021-04-28 14:40:17,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 405 transitions, 7484 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:18,001 INFO L241 Difference]: Finished difference. Result has 133 places, 389 transitions, 7471 flow [2021-04-28 14:40:18,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=4630, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7471, PETRI_PLACES=133, PETRI_TRANSITIONS=389} [2021-04-28 14:40:18,002 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 59 predicate places. [2021-04-28 14:40:18,002 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:18,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 389 transitions, 7471 flow [2021-04-28 14:40:18,003 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 389 transitions, 7471 flow [2021-04-28 14:40:18,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 389 transitions, 7471 flow [2021-04-28 14:40:18,272 INFO L129 PetriNetUnfolder]: 1108/2193 cut-off events. [2021-04-28 14:40:18,272 INFO L130 PetriNetUnfolder]: For 14684/14732 co-relation queries the response was YES. [2021-04-28 14:40:18,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19508 conditions, 2193 events. 1108/2193 cut-off events. For 14684/14732 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 16629 event pairs, 0 based on Foata normal form. 0/669 useless extension candidates. Maximal degree in co-relation 19458. Up to 1298 conditions per place. [2021-04-28 14:40:18,318 INFO L146 LiptonReduction]: Number of co-enabled transitions 4486 [2021-04-28 14:40:18,404 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:18,404 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:18,404 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 402 [2021-04-28 14:40:18,405 INFO L480 AbstractCegarLoop]: Abstraction has has 133 places, 389 transitions, 7471 flow [2021-04-28 14:40:18,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:18,405 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:18,405 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:18,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-04-28 14:40:18,618 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:18,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:18,619 INFO L82 PathProgramCache]: Analyzing trace with hash 877133305, now seen corresponding path program 1 times [2021-04-28 14:40:18,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:18,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916318701] [2021-04-28 14:40:18,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:18,644 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:40:18,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,650 INFO L142 QuantifierPusher]: treesize reduction 6, result has 60.0 percent of original size [2021-04-28 14:40:18,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:18,658 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-04-28 14:40:18,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,666 INFO L142 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-04-28 14:40:18,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,677 INFO L142 QuantifierPusher]: treesize reduction 6, result has 71.4 percent of original size [2021-04-28 14:40:18,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:18,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:18,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:18,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916318701] [2021-04-28 14:40:18,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243292630] [2021-04-28 14:40:18,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:18,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:18,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:18,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:18,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:18,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:18,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:18,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:18,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:18,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:18,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:18,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:18,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:18,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:18,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:18,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:18,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:18,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:18,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:18,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:18,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:18,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:18,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:18,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:18,900 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:18,901 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:18,903 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:18,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:18,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:18,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:18,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:18,928 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:18,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:18,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:18,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240544711] [2021-04-28 14:40:18,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:18,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:18,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:18,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:18,932 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:18,933 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 389 transitions, 7471 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:18,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:18,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:18,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:19,843 INFO L129 PetriNetUnfolder]: 1324/2513 cut-off events. [2021-04-28 14:40:19,843 INFO L130 PetriNetUnfolder]: For 18477/18531 co-relation queries the response was YES. [2021-04-28 14:40:19,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24709 conditions, 2513 events. 1324/2513 cut-off events. For 18477/18531 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 18159 event pairs, 0 based on Foata normal form. 18/775 useless extension candidates. Maximal degree in co-relation 24657. Up to 1767 conditions per place. [2021-04-28 14:40:19,887 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 270 selfloop transitions, 181 changer transitions 0/471 dead transitions. [2021-04-28 14:40:19,887 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 471 transitions, 10241 flow [2021-04-28 14:40:19,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-28 14:40:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-04-28 14:40:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1600 transitions. [2021-04-28 14:40:19,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5828779599271403 [2021-04-28 14:40:19,892 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1600 transitions. [2021-04-28 14:40:19,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1600 transitions. [2021-04-28 14:40:19,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:19,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1600 transitions. [2021-04-28 14:40:19,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 106.66666666666667) internal successors, (1600), 15 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:19,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:19,901 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:19,901 INFO L185 Difference]: Start difference. First operand has 133 places, 389 transitions, 7471 flow. Second operand 15 states and 1600 transitions. [2021-04-28 14:40:19,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 471 transitions, 10241 flow [2021-04-28 14:40:20,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 471 transitions, 8093 flow, removed 960 selfloop flow, removed 11 redundant places. [2021-04-28 14:40:20,372 INFO L241 Difference]: Finished difference. Result has 139 places, 471 transitions, 7695 flow [2021-04-28 14:40:20,373 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=5919, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7695, PETRI_PLACES=139, PETRI_TRANSITIONS=471} [2021-04-28 14:40:20,373 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 65 predicate places. [2021-04-28 14:40:20,373 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:20,373 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 471 transitions, 7695 flow [2021-04-28 14:40:20,374 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 471 transitions, 7695 flow [2021-04-28 14:40:20,379 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 471 transitions, 7695 flow [2021-04-28 14:40:20,614 INFO L129 PetriNetUnfolder]: 1324/2515 cut-off events. [2021-04-28 14:40:20,614 INFO L130 PetriNetUnfolder]: For 13409/13439 co-relation queries the response was YES. [2021-04-28 14:40:20,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17492 conditions, 2515 events. 1324/2515 cut-off events. For 13409/13439 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 18584 event pairs, 0 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 17440. Up to 1141 conditions per place. [2021-04-28 14:40:20,655 INFO L146 LiptonReduction]: Number of co-enabled transitions 5478 [2021-04-28 14:40:20,724 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:20,724 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:20,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 351 [2021-04-28 14:40:20,725 INFO L480 AbstractCegarLoop]: Abstraction has has 139 places, 471 transitions, 7695 flow [2021-04-28 14:40:20,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:20,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:20,726 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:20,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:20,940 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:20,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:20,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1976147830, now seen corresponding path program 1 times [2021-04-28 14:40:20,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:20,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691492829] [2021-04-28 14:40:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:20,973 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:20,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:20,979 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-04-28 14:40:20,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:20,988 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-04-28 14:40:20,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:20,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:20,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:21,006 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:21,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:21,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691492829] [2021-04-28 14:40:21,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602420759] [2021-04-28 14:40:21,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:21,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:21,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:21,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:21,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:21,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:21,126 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:21,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:21,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:21,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:21,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:21,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:21,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:21,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:21,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:21,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:21,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:21,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:21,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:21,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:21,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:21,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:21,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:21,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:21,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:21,217 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:21,218 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:21,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:21,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:21,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:21,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-04-28 14:40:21,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378028739] [2021-04-28 14:40:21,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:40:21,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:21,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:40:21,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:40:21,230 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:21,231 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 471 transitions, 7695 flow. Second operand has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:21,231 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:21,231 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:21,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:21,865 INFO L129 PetriNetUnfolder]: 1376/2623 cut-off events. [2021-04-28 14:40:21,865 INFO L130 PetriNetUnfolder]: For 15729/15783 co-relation queries the response was YES. [2021-04-28 14:40:21,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20281 conditions, 2623 events. 1376/2623 cut-off events. For 15729/15783 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 19333 event pairs, 0 based on Foata normal form. 22/809 useless extension candidates. Maximal degree in co-relation 20227. Up to 1876 conditions per place. [2021-04-28 14:40:21,900 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 424 selfloop transitions, 85 changer transitions 3/532 dead transitions. [2021-04-28 14:40:21,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 532 transitions, 9486 flow [2021-04-28 14:40:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 14:40:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 14:40:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 844 transitions. [2021-04-28 14:40:21,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5765027322404371 [2021-04-28 14:40:21,903 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 844 transitions. [2021-04-28 14:40:21,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 844 transitions. [2021-04-28 14:40:21,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:21,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 844 transitions. [2021-04-28 14:40:21,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.5) internal successors, (844), 8 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:21,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:21,909 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:21,909 INFO L185 Difference]: Start difference. First operand has 139 places, 471 transitions, 7695 flow. Second operand 8 states and 844 transitions. [2021-04-28 14:40:21,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 532 transitions, 9486 flow [2021-04-28 14:40:22,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 532 transitions, 8941 flow, removed 205 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:22,163 INFO L241 Difference]: Finished difference. Result has 140 places, 485 transitions, 7666 flow [2021-04-28 14:40:22,163 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=7180, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7666, PETRI_PLACES=140, PETRI_TRANSITIONS=485} [2021-04-28 14:40:22,164 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 66 predicate places. [2021-04-28 14:40:22,164 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:22,165 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 485 transitions, 7666 flow [2021-04-28 14:40:22,165 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 485 transitions, 7666 flow [2021-04-28 14:40:22,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 485 transitions, 7666 flow [2021-04-28 14:40:22,439 INFO L129 PetriNetUnfolder]: 1364/2627 cut-off events. [2021-04-28 14:40:22,439 INFO L130 PetriNetUnfolder]: For 14443/14455 co-relation queries the response was YES. [2021-04-28 14:40:22,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18058 conditions, 2627 events. 1364/2627 cut-off events. For 14443/14455 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 20086 event pairs, 0 based on Foata normal form. 0/790 useless extension candidates. Maximal degree in co-relation 18003. Up to 1133 conditions per place. [2021-04-28 14:40:22,474 INFO L146 LiptonReduction]: Number of co-enabled transitions 5598 [2021-04-28 14:40:22,645 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:22,646 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:22,646 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 482 [2021-04-28 14:40:22,647 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 485 transitions, 7666 flow [2021-04-28 14:40:22,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:22,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:22,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:22,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:22,862 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:22,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:22,862 INFO L82 PathProgramCache]: Analyzing trace with hash -456893119, now seen corresponding path program 1 times [2021-04-28 14:40:22,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:22,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782365643] [2021-04-28 14:40:22,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:22,888 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:22,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:22,895 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-28 14:40:22,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:22,903 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:40:22,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:22,912 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:40:22,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:22,921 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:22,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:22,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782365643] [2021-04-28 14:40:22,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406014181] [2021-04-28 14:40:22,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:22,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:22,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:22,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:22,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:22,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:22,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:22,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:22,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:22,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:22,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:23,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:23,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:23,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:23,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:23,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:23,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:23,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:23,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:23,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:23,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:23,091 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:40:23,092 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:23,094 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:23,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:23,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:23,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:23,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:23,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:23,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-04-28 14:40:23,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128313352] [2021-04-28 14:40:23,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:40:23,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:23,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:40:23,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:40:23,136 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:23,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 485 transitions, 7666 flow. Second operand has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:23,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:23,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:23,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:23,927 INFO L129 PetriNetUnfolder]: 1572/3123 cut-off events. [2021-04-28 14:40:23,927 INFO L130 PetriNetUnfolder]: For 26884/26926 co-relation queries the response was YES. [2021-04-28 14:40:23,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23631 conditions, 3123 events. 1572/3123 cut-off events. For 26884/26926 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 24582 event pairs, 0 based on Foata normal form. 54/991 useless extension candidates. Maximal degree in co-relation 23574. Up to 1894 conditions per place. [2021-04-28 14:40:23,958 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 281 selfloop transitions, 274 changer transitions 0/575 dead transitions. [2021-04-28 14:40:23,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 575 transitions, 10244 flow [2021-04-28 14:40:23,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-28 14:40:23,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-28 14:40:23,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1388 transitions. [2021-04-28 14:40:23,962 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5834384195039932 [2021-04-28 14:40:23,962 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1388 transitions. [2021-04-28 14:40:23,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1388 transitions. [2021-04-28 14:40:23,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:23,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1388 transitions. [2021-04-28 14:40:23,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.76923076923077) internal successors, (1388), 13 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:23,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:23,970 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:23,971 INFO L185 Difference]: Start difference. First operand has 140 places, 485 transitions, 7666 flow. Second operand 13 states and 1388 transitions. [2021-04-28 14:40:23,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 575 transitions, 10244 flow [2021-04-28 14:40:24,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 575 transitions, 10149 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:24,223 INFO L241 Difference]: Finished difference. Result has 150 places, 567 transitions, 9822 flow [2021-04-28 14:40:24,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=7579, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=9822, PETRI_PLACES=150, PETRI_TRANSITIONS=567} [2021-04-28 14:40:24,224 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 76 predicate places. [2021-04-28 14:40:24,224 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:24,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 567 transitions, 9822 flow [2021-04-28 14:40:24,225 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 567 transitions, 9822 flow [2021-04-28 14:40:24,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 567 transitions, 9822 flow [2021-04-28 14:40:24,583 INFO L129 PetriNetUnfolder]: 1572/3083 cut-off events. [2021-04-28 14:40:24,583 INFO L130 PetriNetUnfolder]: For 18746/18782 co-relation queries the response was YES. [2021-04-28 14:40:24,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23214 conditions, 3083 events. 1572/3083 cut-off events. For 18746/18782 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 24362 event pairs, 0 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 23156. Up to 1421 conditions per place. [2021-04-28 14:40:24,618 INFO L146 LiptonReduction]: Number of co-enabled transitions 6378 [2021-04-28 14:40:24,722 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:24,722 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:24,722 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 498 [2021-04-28 14:40:24,723 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 567 transitions, 9822 flow [2021-04-28 14:40:24,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:24,723 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:24,724 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:24,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-04-28 14:40:24,937 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:24,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:24,937 INFO L82 PathProgramCache]: Analyzing trace with hash -514194015, now seen corresponding path program 1 times [2021-04-28 14:40:24,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:24,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769101052] [2021-04-28 14:40:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:24,969 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:24,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:24,975 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:24,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:24,983 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:40:24,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:24,994 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-04-28 14:40:24,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:25,005 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:25,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:25,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769101052] [2021-04-28 14:40:25,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222533757] [2021-04-28 14:40:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:25,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:25,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:25,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:25,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:25,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:25,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:25,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:25,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:25,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:25,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:25,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:25,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:25,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:25,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:25,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:25,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:25,160 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:25,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:25,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:25,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:25,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:25,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:25,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:25,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:25,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:25,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:25,202 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:25,203 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:25,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:25,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:25,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-04-28 14:40:25,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093502649] [2021-04-28 14:40:25,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:40:25,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:25,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:40:25,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:40:25,214 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:25,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 567 transitions, 9822 flow. Second operand has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:25,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:25,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:25,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:26,106 INFO L129 PetriNetUnfolder]: 1588/3139 cut-off events. [2021-04-28 14:40:26,106 INFO L130 PetriNetUnfolder]: For 24587/24641 co-relation queries the response was YES. [2021-04-28 14:40:26,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25899 conditions, 3139 events. 1588/3139 cut-off events. For 24587/24641 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 24665 event pairs, 0 based on Foata normal form. 22/963 useless extension candidates. Maximal degree in co-relation 25839. Up to 1941 conditions per place. [2021-04-28 14:40:26,135 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 340 selfloop transitions, 237 changer transitions 6/603 dead transitions. [2021-04-28 14:40:26,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 603 transitions, 11388 flow [2021-04-28 14:40:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:40:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:40:26,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1272 transitions. [2021-04-28 14:40:26,138 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2021-04-28 14:40:26,138 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1272 transitions. [2021-04-28 14:40:26,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1272 transitions. [2021-04-28 14:40:26,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:26,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1272 transitions. [2021-04-28 14:40:26,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:26,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:26,145 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:26,146 INFO L185 Difference]: Start difference. First operand has 150 places, 567 transitions, 9822 flow. Second operand 12 states and 1272 transitions. [2021-04-28 14:40:26,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 603 transitions, 11388 flow [2021-04-28 14:40:26,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 603 transitions, 10940 flow, removed 146 selfloop flow, removed 7 redundant places. [2021-04-28 14:40:26,464 INFO L241 Difference]: Finished difference. Result has 155 places, 565 transitions, 9978 flow [2021-04-28 14:40:26,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=9374, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9978, PETRI_PLACES=155, PETRI_TRANSITIONS=565} [2021-04-28 14:40:26,465 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 81 predicate places. [2021-04-28 14:40:26,465 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:26,465 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 565 transitions, 9978 flow [2021-04-28 14:40:26,465 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 565 transitions, 9978 flow [2021-04-28 14:40:26,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 565 transitions, 9978 flow [2021-04-28 14:40:26,775 INFO L129 PetriNetUnfolder]: 1564/3106 cut-off events. [2021-04-28 14:40:26,776 INFO L130 PetriNetUnfolder]: For 19561/19585 co-relation queries the response was YES. [2021-04-28 14:40:26,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23606 conditions, 3106 events. 1564/3106 cut-off events. For 19561/19585 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 25118 event pairs, 0 based on Foata normal form. 0/939 useless extension candidates. Maximal degree in co-relation 23548. Up to 1417 conditions per place. [2021-04-28 14:40:26,819 INFO L146 LiptonReduction]: Number of co-enabled transitions 6362 [2021-04-28 14:40:26,917 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:26,917 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:26,917 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 452 [2021-04-28 14:40:26,918 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 565 transitions, 9978 flow [2021-04-28 14:40:26,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:26,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:26,919 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:27,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:27,123 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:27,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:27,124 INFO L82 PathProgramCache]: Analyzing trace with hash -514084151, now seen corresponding path program 1 times [2021-04-28 14:40:27,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:27,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433304020] [2021-04-28 14:40:27,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:27,147 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:27,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,153 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:27,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:40:27,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-04-28 14:40:27,170 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:27,185 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:27,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:27,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433304020] [2021-04-28 14:40:27,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921938360] [2021-04-28 14:40:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:27,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2021-04-28 14:40:27,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:27,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:27,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:27,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:27,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:27,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:27,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:27,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:27,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:27,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:27,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:27,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:27,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:27,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:27,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:27,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:27,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:27,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:27,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:27,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:27,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:27,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:27,360 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-04-28 14:40:27,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:27,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:27,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:27,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:27,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-04-28 14:40:27,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088859039] [2021-04-28 14:40:27,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-28 14:40:27,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:27,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-28 14:40:27,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-04-28 14:40:27,374 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:27,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 565 transitions, 9978 flow. Second operand has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:27,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:27,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:27,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:28,561 INFO L129 PetriNetUnfolder]: 1932/3907 cut-off events. [2021-04-28 14:40:28,561 INFO L130 PetriNetUnfolder]: For 39157/39211 co-relation queries the response was YES. [2021-04-28 14:40:28,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32120 conditions, 3907 events. 1932/3907 cut-off events. For 39157/39211 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 32661 event pairs, 0 based on Foata normal form. 86/1258 useless extension candidates. Maximal degree in co-relation 32060. Up to 1945 conditions per place. [2021-04-28 14:40:28,597 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 243 selfloop transitions, 476 changer transitions 9/748 dead transitions. [2021-04-28 14:40:28,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 748 transitions, 14365 flow [2021-04-28 14:40:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-28 14:40:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-04-28 14:40:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1813 transitions. [2021-04-28 14:40:28,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5827708132433301 [2021-04-28 14:40:28,602 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1813 transitions. [2021-04-28 14:40:28,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1813 transitions. [2021-04-28 14:40:28,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:28,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1813 transitions. [2021-04-28 14:40:28,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 106.6470588235294) internal successors, (1813), 17 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,611 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:28,612 INFO L185 Difference]: Start difference. First operand has 155 places, 565 transitions, 9978 flow. Second operand 17 states and 1813 transitions. [2021-04-28 14:40:28,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 748 transitions, 14365 flow [2021-04-28 14:40:28,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 748 transitions, 13882 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-04-28 14:40:28,955 INFO L241 Difference]: Finished difference. Result has 164 places, 683 transitions, 13327 flow [2021-04-28 14:40:28,956 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=9511, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=375, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13327, PETRI_PLACES=164, PETRI_TRANSITIONS=683} [2021-04-28 14:40:28,956 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 90 predicate places. [2021-04-28 14:40:28,957 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:28,957 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 683 transitions, 13327 flow [2021-04-28 14:40:28,957 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 683 transitions, 13327 flow [2021-04-28 14:40:28,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 164 places, 683 transitions, 13327 flow [2021-04-28 14:40:29,381 INFO L129 PetriNetUnfolder]: 1896/3855 cut-off events. [2021-04-28 14:40:29,381 INFO L130 PetriNetUnfolder]: For 24177/24225 co-relation queries the response was YES. [2021-04-28 14:40:29,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31509 conditions, 3855 events. 1896/3855 cut-off events. For 24177/24225 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 33175 event pairs, 0 based on Foata normal form. 0/1166 useless extension candidates. Maximal degree in co-relation 31447. Up to 1909 conditions per place. [2021-04-28 14:40:29,515 INFO L146 LiptonReduction]: Number of co-enabled transitions 7472 [2021-04-28 14:40:29,651 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:29,651 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:29,651 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 695 [2021-04-28 14:40:29,652 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 683 transitions, 13327 flow [2021-04-28 14:40:29,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:29,653 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:29,653 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:29,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-04-28 14:40:29,869 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:29,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:29,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1977717159, now seen corresponding path program 4 times [2021-04-28 14:40:29,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:29,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380284425] [2021-04-28 14:40:29,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:29,894 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:29,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,901 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-04-28 14:40:29,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:29,910 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-04-28 14:40:29,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:29,920 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:29,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:29,932 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:29,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:29,945 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:29,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:29,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380284425] [2021-04-28 14:40:29,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220194126] [2021-04-28 14:40:29,957 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:30,020 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-28 14:40:30,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:30,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:30,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:30,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:30,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:30,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:30,062 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:40:30,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:30,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:40:30,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:30,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:30,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:30,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:30,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:30,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:30,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:30,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:30,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:30,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:30,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:30,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:30,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:30,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:30,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:30,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:30,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:30,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:30,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:30,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:30,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:30,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:30,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:30,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:30,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:30,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:30,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:30,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:30,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:30,165 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:30,166 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:30,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:30,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:30,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:30,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389888033] [2021-04-28 14:40:30,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:30,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:30,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:30,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:30,181 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:30,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 683 transitions, 13327 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:30,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:30,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:30,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:31,154 INFO L129 PetriNetUnfolder]: 1928/3938 cut-off events. [2021-04-28 14:40:31,155 INFO L130 PetriNetUnfolder]: For 32903/32957 co-relation queries the response was YES. [2021-04-28 14:40:31,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35029 conditions, 3938 events. 1928/3938 cut-off events. For 32903/32957 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 33337 event pairs, 0 based on Foata normal form. 26/1215 useless extension candidates. Maximal degree in co-relation 34965. Up to 2820 conditions per place. [2021-04-28 14:40:31,195 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 635 selfloop transitions, 77 changer transitions 3/735 dead transitions. [2021-04-28 14:40:31,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 735 transitions, 15441 flow [2021-04-28 14:40:31,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 14:40:31,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 14:40:31,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 844 transitions. [2021-04-28 14:40:31,197 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5765027322404371 [2021-04-28 14:40:31,197 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 844 transitions. [2021-04-28 14:40:31,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 844 transitions. [2021-04-28 14:40:31,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:31,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 844 transitions. [2021-04-28 14:40:31,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 105.5) internal successors, (844), 8 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:31,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:31,202 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:31,202 INFO L185 Difference]: Start difference. First operand has 164 places, 683 transitions, 13327 flow. Second operand 8 states and 844 transitions. [2021-04-28 14:40:31,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 735 transitions, 15441 flow [2021-04-28 14:40:31,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 735 transitions, 14208 flow, removed 529 selfloop flow, removed 11 redundant places. [2021-04-28 14:40:32,000 INFO L241 Difference]: Finished difference. Result has 162 places, 688 transitions, 12433 flow [2021-04-28 14:40:32,001 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=12102, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=12433, PETRI_PLACES=162, PETRI_TRANSITIONS=688} [2021-04-28 14:40:32,001 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 88 predicate places. [2021-04-28 14:40:32,002 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:32,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 688 transitions, 12433 flow [2021-04-28 14:40:32,002 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 688 transitions, 12433 flow [2021-04-28 14:40:32,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 688 transitions, 12433 flow [2021-04-28 14:40:32,459 INFO L129 PetriNetUnfolder]: 1916/3893 cut-off events. [2021-04-28 14:40:32,459 INFO L130 PetriNetUnfolder]: For 25278/25314 co-relation queries the response was YES. [2021-04-28 14:40:32,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29910 conditions, 3893 events. 1916/3893 cut-off events. For 25278/25314 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 33402 event pairs, 0 based on Foata normal form. 0/1176 useless extension candidates. Maximal degree in co-relation 29848. Up to 1934 conditions per place. [2021-04-28 14:40:32,511 INFO L146 LiptonReduction]: Number of co-enabled transitions 7526 [2021-04-28 14:40:32,636 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:32,636 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:32,636 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 634 [2021-04-28 14:40:32,637 INFO L480 AbstractCegarLoop]: Abstraction has has 162 places, 688 transitions, 12433 flow [2021-04-28 14:40:32,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:32,637 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:32,638 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:32,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:32,838 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:32,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:32,839 INFO L82 PathProgramCache]: Analyzing trace with hash -537023531, now seen corresponding path program 4 times [2021-04-28 14:40:32,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:32,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114575967] [2021-04-28 14:40:32,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:32,879 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:32,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,890 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:32,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:32,901 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-04-28 14:40:32,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:32,918 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:32,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:32,929 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:32,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:32,944 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:32,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:32,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114575967] [2021-04-28 14:40:32,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782245746] [2021-04-28 14:40:32,955 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:33,014 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-28 14:40:33,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:33,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:33,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:33,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:33,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:33,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:33,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:33,068 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:40:33,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:33,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:33,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:33,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:33,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:33,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:33,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:33,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:33,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:33,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:33,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:33,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:33,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:33,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:33,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:33,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:33,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:33,143 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:33,144 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:33,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:33,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:33,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:33,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889804732] [2021-04-28 14:40:33,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:33,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:33,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:33,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:33,157 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:33,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 688 transitions, 12433 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:33,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:33,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:33,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:34,127 INFO L129 PetriNetUnfolder]: 1948/3954 cut-off events. [2021-04-28 14:40:34,127 INFO L130 PetriNetUnfolder]: For 33516/33558 co-relation queries the response was YES. [2021-04-28 14:40:34,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33453 conditions, 3954 events. 1948/3954 cut-off events. For 33516/33558 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 33238 event pairs, 0 based on Foata normal form. 26/1221 useless extension candidates. Maximal degree in co-relation 33389. Up to 2726 conditions per place. [2021-04-28 14:40:34,165 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 579 selfloop transitions, 130 changer transitions 3/732 dead transitions. [2021-04-28 14:40:34,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 732 transitions, 14453 flow [2021-04-28 14:40:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 14:40:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 14:40:34,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 952 transitions. [2021-04-28 14:40:34,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5780206435944141 [2021-04-28 14:40:34,167 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 952 transitions. [2021-04-28 14:40:34,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 952 transitions. [2021-04-28 14:40:34,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:34,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 952 transitions. [2021-04-28 14:40:34,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.77777777777777) internal successors, (952), 9 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:34,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:34,172 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:34,172 INFO L185 Difference]: Start difference. First operand has 162 places, 688 transitions, 12433 flow. Second operand 9 states and 952 transitions. [2021-04-28 14:40:34,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 732 transitions, 14453 flow [2021-04-28 14:40:34,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 732 transitions, 14369 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-04-28 14:40:34,573 INFO L241 Difference]: Finished difference. Result has 167 places, 693 transitions, 12856 flow [2021-04-28 14:40:34,573 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=12349, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12856, PETRI_PLACES=167, PETRI_TRANSITIONS=693} [2021-04-28 14:40:34,574 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 93 predicate places. [2021-04-28 14:40:34,574 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:34,574 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 693 transitions, 12856 flow [2021-04-28 14:40:34,574 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 693 transitions, 12856 flow [2021-04-28 14:40:34,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 693 transitions, 12856 flow [2021-04-28 14:40:35,008 INFO L129 PetriNetUnfolder]: 1936/3932 cut-off events. [2021-04-28 14:40:35,008 INFO L130 PetriNetUnfolder]: For 27513/27549 co-relation queries the response was YES. [2021-04-28 14:40:35,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30880 conditions, 3932 events. 1936/3932 cut-off events. For 27513/27549 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 33772 event pairs, 0 based on Foata normal form. 0/1186 useless extension candidates. Maximal degree in co-relation 30816. Up to 1959 conditions per place. [2021-04-28 14:40:35,131 INFO L146 LiptonReduction]: Number of co-enabled transitions 7580 [2021-04-28 14:40:35,260 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:35,260 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:35,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 686 [2021-04-28 14:40:35,261 INFO L480 AbstractCegarLoop]: Abstraction has has 167 places, 693 transitions, 12856 flow [2021-04-28 14:40:35,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:35,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:35,261 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:35,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-04-28 14:40:35,476 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:35,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:35,477 INFO L82 PathProgramCache]: Analyzing trace with hash -490549571, now seen corresponding path program 5 times [2021-04-28 14:40:35,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:35,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141596774] [2021-04-28 14:40:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:35,500 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:35,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,507 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:35,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:35,514 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:35,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:35,524 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:35,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:35,535 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:35,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:35,547 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:35,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:35,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141596774] [2021-04-28 14:40:35,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077906604] [2021-04-28 14:40:35,558 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:35,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-04-28 14:40:35,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:35,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:35,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:35,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:35,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:35,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:35,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:35,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:35,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:35,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:35,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:35,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:35,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:35,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:35,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:35,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:35,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:35,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:35,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:35,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:35,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:35,724 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:40:35,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:35,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:35,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:35,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:35,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:35,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:35,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:35,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:35,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:35,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:35,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:35,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:35,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:35,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:35,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:35,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:35,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:35,774 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:35,775 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:35,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:35,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:35,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:35,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:35,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054060829] [2021-04-28 14:40:35,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:35,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:35,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:35,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:35,789 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:35,791 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 693 transitions, 12856 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:35,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:35,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:35,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:36,863 INFO L129 PetriNetUnfolder]: 1968/3999 cut-off events. [2021-04-28 14:40:36,863 INFO L130 PetriNetUnfolder]: For 36461/36503 co-relation queries the response was YES. [2021-04-28 14:40:36,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34474 conditions, 3999 events. 1968/3999 cut-off events. For 36461/36503 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 33749 event pairs, 0 based on Foata normal form. 26/1232 useless extension candidates. Maximal degree in co-relation 34408. Up to 2677 conditions per place. [2021-04-28 14:40:36,903 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 545 selfloop transitions, 165 changer transitions 3/733 dead transitions. [2021-04-28 14:40:36,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 733 transitions, 14822 flow [2021-04-28 14:40:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:40:36,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:40:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1060 transitions. [2021-04-28 14:40:36,905 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2021-04-28 14:40:36,905 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1060 transitions. [2021-04-28 14:40:36,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1060 transitions. [2021-04-28 14:40:36,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:36,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1060 transitions. [2021-04-28 14:40:36,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:36,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:36,910 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:36,910 INFO L185 Difference]: Start difference. First operand has 167 places, 693 transitions, 12856 flow. Second operand 10 states and 1060 transitions. [2021-04-28 14:40:36,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 733 transitions, 14822 flow [2021-04-28 14:40:37,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 733 transitions, 14654 flow, removed 13 selfloop flow, removed 6 redundant places. [2021-04-28 14:40:37,343 INFO L241 Difference]: Finished difference. Result has 171 places, 694 transitions, 13220 flow [2021-04-28 14:40:37,343 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=12696, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13220, PETRI_PLACES=171, PETRI_TRANSITIONS=694} [2021-04-28 14:40:37,344 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 97 predicate places. [2021-04-28 14:40:37,344 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:37,344 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 171 places, 694 transitions, 13220 flow [2021-04-28 14:40:37,344 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 171 places, 694 transitions, 13220 flow [2021-04-28 14:40:37,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 694 transitions, 13220 flow [2021-04-28 14:40:37,872 INFO L129 PetriNetUnfolder]: 1956/3966 cut-off events. [2021-04-28 14:40:37,872 INFO L130 PetriNetUnfolder]: For 28784/28796 co-relation queries the response was YES. [2021-04-28 14:40:37,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31734 conditions, 3966 events. 1956/3966 cut-off events. For 28784/28796 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 34222 event pairs, 0 based on Foata normal form. 0/1198 useless extension candidates. Maximal degree in co-relation 31669. Up to 1984 conditions per place. [2021-04-28 14:40:37,939 INFO L146 LiptonReduction]: Number of co-enabled transitions 7594 [2021-04-28 14:40:38,073 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:38,073 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:38,073 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 729 [2021-04-28 14:40:38,074 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 694 transitions, 13220 flow [2021-04-28 14:40:38,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:38,074 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:38,074 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:38,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-04-28 14:40:38,275 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:38,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:38,276 INFO L82 PathProgramCache]: Analyzing trace with hash -489050349, now seen corresponding path program 4 times [2021-04-28 14:40:38,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:38,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719613210] [2021-04-28 14:40:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:38,300 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:38,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,312 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:38,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,319 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:38,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,327 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:38,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,337 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:38,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,347 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:38,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:38,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719613210] [2021-04-28 14:40:38,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644294388] [2021-04-28 14:40:38,356 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:38,416 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-04-28 14:40:38,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:38,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:38,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:38,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:38,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:38,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:38,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:38,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:38,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:38,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:38,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:38,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:38,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:38,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:38,521 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:40:38,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:38,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:38,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:38,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:38,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:38,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:38,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:38,548 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:38,549 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:38,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:38,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:38,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:38,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8372098] [2021-04-28 14:40:38,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:38,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:38,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:38,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:38,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:38,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 694 transitions, 13220 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:38,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:38,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:38,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:39,688 INFO L129 PetriNetUnfolder]: 1988/4048 cut-off events. [2021-04-28 14:40:39,689 INFO L130 PetriNetUnfolder]: For 34738/34780 co-relation queries the response was YES. [2021-04-28 14:40:39,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35368 conditions, 4048 events. 1988/4048 cut-off events. For 34738/34780 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 34366 event pairs, 0 based on Foata normal form. 26/1244 useless extension candidates. Maximal degree in co-relation 35301. Up to 2653 conditions per place. [2021-04-28 14:40:39,725 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 524 selfloop transitions, 187 changer transitions 3/734 dead transitions. [2021-04-28 14:40:39,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 734 transitions, 15188 flow [2021-04-28 14:40:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:40:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:40:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1168 transitions. [2021-04-28 14:40:39,727 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5802285146547441 [2021-04-28 14:40:39,727 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1168 transitions. [2021-04-28 14:40:39,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1168 transitions. [2021-04-28 14:40:39,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:39,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1168 transitions. [2021-04-28 14:40:39,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 106.18181818181819) internal successors, (1168), 11 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:39,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:39,732 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:39,732 INFO L185 Difference]: Start difference. First operand has 171 places, 694 transitions, 13220 flow. Second operand 11 states and 1168 transitions. [2021-04-28 14:40:39,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 734 transitions, 15188 flow [2021-04-28 14:40:40,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 734 transitions, 14989 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-04-28 14:40:40,135 INFO L241 Difference]: Finished difference. Result has 175 places, 695 transitions, 13628 flow [2021-04-28 14:40:40,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=13029, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13628, PETRI_PLACES=175, PETRI_TRANSITIONS=695} [2021-04-28 14:40:40,136 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 101 predicate places. [2021-04-28 14:40:40,136 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:40,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 695 transitions, 13628 flow [2021-04-28 14:40:40,136 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 695 transitions, 13628 flow [2021-04-28 14:40:40,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 695 transitions, 13628 flow [2021-04-28 14:40:40,618 INFO L129 PetriNetUnfolder]: 1976/4000 cut-off events. [2021-04-28 14:40:40,618 INFO L130 PetriNetUnfolder]: For 29084/29096 co-relation queries the response was YES. [2021-04-28 14:40:40,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32622 conditions, 4000 events. 1976/4000 cut-off events. For 29084/29096 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 34397 event pairs, 0 based on Foata normal form. 0/1207 useless extension candidates. Maximal degree in co-relation 32556. Up to 2009 conditions per place. [2021-04-28 14:40:40,679 INFO L146 LiptonReduction]: Number of co-enabled transitions 7608 [2021-04-28 14:40:40,824 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:40,824 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:40,824 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 688 [2021-04-28 14:40:40,825 INFO L480 AbstractCegarLoop]: Abstraction has has 175 places, 695 transitions, 13628 flow [2021-04-28 14:40:40,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:40,826 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:40,826 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:41,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-04-28 14:40:41,032 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:41,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:41,032 INFO L82 PathProgramCache]: Analyzing trace with hash -489002051, now seen corresponding path program 6 times [2021-04-28 14:40:41,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:41,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023018219] [2021-04-28 14:40:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:41,057 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:41,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,063 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:41,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,072 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:41,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,081 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:41,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,111 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-04-28 14:40:41,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:41,131 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:41,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:41,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023018219] [2021-04-28 14:40:41,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575805437] [2021-04-28 14:40:41,143 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:41,210 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-04-28 14:40:41,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:40:41,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:41,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:41,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:41,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:41,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:41,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:41,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:41,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:41,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:41,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:41,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:41,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:41,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:41,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:41,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:41,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:41,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:41,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:41,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:41,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:41,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:41,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:41,350 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:40:41,351 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:41,352 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:41,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:41,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:41,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:41,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971686104] [2021-04-28 14:40:41,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:41,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:41,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:41,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:41,374 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:41,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 695 transitions, 13628 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:41,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:41,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:41,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:42,727 INFO L129 PetriNetUnfolder]: 2080/4202 cut-off events. [2021-04-28 14:40:42,728 INFO L130 PetriNetUnfolder]: For 43048/43090 co-relation queries the response was YES. [2021-04-28 14:40:42,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37473 conditions, 4202 events. 2080/4202 cut-off events. For 43048/43090 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 35406 event pairs, 0 based on Foata normal form. 46/1309 useless extension candidates. Maximal degree in co-relation 37405. Up to 2705 conditions per place. [2021-04-28 14:40:42,774 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 528 selfloop transitions, 230 changer transitions 15/793 dead transitions. [2021-04-28 14:40:42,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 793 transitions, 17198 flow [2021-04-28 14:40:42,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:40:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:40:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1705 transitions. [2021-04-28 14:40:42,777 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.582308743169399 [2021-04-28 14:40:42,777 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1705 transitions. [2021-04-28 14:40:42,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1705 transitions. [2021-04-28 14:40:42,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:42,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1705 transitions. [2021-04-28 14:40:42,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 106.5625) internal successors, (1705), 16 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:42,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:42,785 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:42,785 INFO L185 Difference]: Start difference. First operand has 175 places, 695 transitions, 13628 flow. Second operand 16 states and 1705 transitions. [2021-04-28 14:40:42,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 793 transitions, 17198 flow [2021-04-28 14:40:43,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 793 transitions, 16768 flow, removed 30 selfloop flow, removed 10 redundant places. [2021-04-28 14:40:43,258 INFO L241 Difference]: Finished difference. Result has 184 places, 746 transitions, 15116 flow [2021-04-28 14:40:43,258 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=13262, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=15116, PETRI_PLACES=184, PETRI_TRANSITIONS=746} [2021-04-28 14:40:43,259 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 110 predicate places. [2021-04-28 14:40:43,259 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:43,259 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 746 transitions, 15116 flow [2021-04-28 14:40:43,259 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 746 transitions, 15116 flow [2021-04-28 14:40:43,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 746 transitions, 15116 flow [2021-04-28 14:40:43,820 INFO L129 PetriNetUnfolder]: 2065/4194 cut-off events. [2021-04-28 14:40:43,820 INFO L130 PetriNetUnfolder]: For 31529/31541 co-relation queries the response was YES. [2021-04-28 14:40:43,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34666 conditions, 4194 events. 2065/4194 cut-off events. For 31529/31541 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 36430 event pairs, 0 based on Foata normal form. 0/1264 useless extension candidates. Maximal degree in co-relation 34597. Up to 2146 conditions per place. [2021-04-28 14:40:43,882 INFO L146 LiptonReduction]: Number of co-enabled transitions 8134 [2021-04-28 14:40:44,070 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:44,070 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:44,070 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 811 [2021-04-28 14:40:44,071 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 746 transitions, 15116 flow [2021-04-28 14:40:44,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:44,072 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:44,072 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:44,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:44,272 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:44,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:44,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1365186471, now seen corresponding path program 1 times [2021-04-28 14:40:44,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:44,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534151366] [2021-04-28 14:40:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:44,302 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:44,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,308 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:40:44,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,316 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:44,317 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:44,334 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:40:44,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,355 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:44,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:44,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534151366] [2021-04-28 14:40:44,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466386245] [2021-04-28 14:40:44,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:44,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:44,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:44,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:44,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:44,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:44,483 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:44,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:44,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:44,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:44,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:44,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:44,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:44,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:44,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:44,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:44,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:44,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:44,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:44,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:44,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:44,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:44,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:44,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:44,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:44,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:44,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:44,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:44,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:44,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787584061] [2021-04-28 14:40:44,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:44,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:44,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:44,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:44,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:44,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 746 transitions, 15116 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:44,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:44,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:44,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:45,916 INFO L129 PetriNetUnfolder]: 2113/4314 cut-off events. [2021-04-28 14:40:45,916 INFO L130 PetriNetUnfolder]: For 36798/36840 co-relation queries the response was YES. [2021-04-28 14:40:45,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38636 conditions, 4314 events. 2113/4314 cut-off events. For 36798/36840 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 37083 event pairs, 0 based on Foata normal form. 22/1314 useless extension candidates. Maximal degree in co-relation 38565. Up to 2905 conditions per place. [2021-04-28 14:40:45,963 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 618 selfloop transitions, 172 changer transitions 12/822 dead transitions. [2021-04-28 14:40:45,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 822 transitions, 17704 flow [2021-04-28 14:40:45,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:40:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:40:45,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1267 transitions. [2021-04-28 14:40:45,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5769581056466302 [2021-04-28 14:40:45,966 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1267 transitions. [2021-04-28 14:40:45,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1267 transitions. [2021-04-28 14:40:45,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:45,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1267 transitions. [2021-04-28 14:40:45,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 105.58333333333333) internal successors, (1267), 12 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:45,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:45,972 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:45,972 INFO L185 Difference]: Start difference. First operand has 184 places, 746 transitions, 15116 flow. Second operand 12 states and 1267 transitions. [2021-04-28 14:40:45,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 822 transitions, 17704 flow [2021-04-28 14:40:46,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 822 transitions, 16701 flow, removed 447 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:46,684 INFO L241 Difference]: Finished difference. Result has 190 places, 754 transitions, 14559 flow [2021-04-28 14:40:46,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=14113, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=746, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=574, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14559, PETRI_PLACES=190, PETRI_TRANSITIONS=754} [2021-04-28 14:40:46,686 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 116 predicate places. [2021-04-28 14:40:46,686 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:46,686 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 754 transitions, 14559 flow [2021-04-28 14:40:46,687 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 754 transitions, 14559 flow [2021-04-28 14:40:46,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 190 places, 754 transitions, 14559 flow [2021-04-28 14:40:47,375 INFO L129 PetriNetUnfolder]: 2065/4250 cut-off events. [2021-04-28 14:40:47,375 INFO L130 PetriNetUnfolder]: For 35956/36004 co-relation queries the response was YES. [2021-04-28 14:40:47,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34083 conditions, 4250 events. 2065/4250 cut-off events. For 35956/36004 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 37564 event pairs, 0 based on Foata normal form. 0/1285 useless extension candidates. Maximal degree in co-relation 34010. Up to 2013 conditions per place. [2021-04-28 14:40:47,431 INFO L146 LiptonReduction]: Number of co-enabled transitions 8214 [2021-04-28 14:40:47,610 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:47,610 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:47,611 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 925 [2021-04-28 14:40:47,611 INFO L480 AbstractCegarLoop]: Abstraction has has 190 places, 754 transitions, 14559 flow [2021-04-28 14:40:47,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:47,612 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:47,612 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:47,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:47,824 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:47,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1268718564, now seen corresponding path program 1 times [2021-04-28 14:40:47,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:47,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45430457] [2021-04-28 14:40:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:47,850 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:47,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:47,857 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:40:47,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:47,866 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:40:47,867 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:40:47,884 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:40:47,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:47,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:47,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:47,907 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:47,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:47,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45430457] [2021-04-28 14:40:47,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133692415] [2021-04-28 14:40:47,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:47,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:47,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:47,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:47,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:47,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:47,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:47,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:48,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:48,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:48,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:48,050 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:40:48,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:48,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:48,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:48,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:48,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:48,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:40:48,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:48,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:48,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:48,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:48,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:40:48,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,117 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:40:48,118 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:40:48,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:40:48,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:48,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:40:48,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:48,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:40:48,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:40:48,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:48,149 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:48,150 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:48,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:48,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:48,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:48,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505839090] [2021-04-28 14:40:48,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:48,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:48,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:48,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:48,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:48,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 754 transitions, 14559 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:48,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:48,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:48,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:49,434 INFO L129 PetriNetUnfolder]: 2097/4331 cut-off events. [2021-04-28 14:40:49,434 INFO L130 PetriNetUnfolder]: For 44063/44117 co-relation queries the response was YES. [2021-04-28 14:40:49,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38006 conditions, 4331 events. 2097/4331 cut-off events. For 44063/44117 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 37772 event pairs, 0 based on Foata normal form. 22/1329 useless extension candidates. Maximal degree in co-relation 37931. Up to 2970 conditions per place. [2021-04-28 14:40:49,484 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 640 selfloop transitions, 143 changer transitions 3/806 dead transitions. [2021-04-28 14:40:49,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 806 transitions, 16927 flow [2021-04-28 14:40:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:40:49,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:40:49,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1264 transitions. [2021-04-28 14:40:49,487 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.575591985428051 [2021-04-28 14:40:49,488 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1264 transitions. [2021-04-28 14:40:49,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1264 transitions. [2021-04-28 14:40:49,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:49,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1264 transitions. [2021-04-28 14:40:49,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 105.33333333333333) internal successors, (1264), 12 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:49,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:49,492 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:49,492 INFO L185 Difference]: Start difference. First operand has 190 places, 754 transitions, 14559 flow. Second operand 12 states and 1264 transitions. [2021-04-28 14:40:49,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 806 transitions, 16927 flow [2021-04-28 14:40:50,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 806 transitions, 16714 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-04-28 14:40:50,336 INFO L241 Difference]: Finished difference. Result has 195 places, 767 transitions, 15065 flow [2021-04-28 14:40:50,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=14354, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=754, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15065, PETRI_PLACES=195, PETRI_TRANSITIONS=767} [2021-04-28 14:40:50,341 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 121 predicate places. [2021-04-28 14:40:50,342 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:50,342 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 195 places, 767 transitions, 15065 flow [2021-04-28 14:40:50,342 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 195 places, 767 transitions, 15065 flow [2021-04-28 14:40:50,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 195 places, 767 transitions, 15065 flow [2021-04-28 14:40:51,375 INFO L129 PetriNetUnfolder]: 2085/4317 cut-off events. [2021-04-28 14:40:51,375 INFO L130 PetriNetUnfolder]: For 38544/38568 co-relation queries the response was YES. [2021-04-28 14:40:51,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34967 conditions, 4317 events. 2085/4317 cut-off events. For 38544/38568 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 38576 event pairs, 0 based on Foata normal form. 0/1306 useless extension candidates. Maximal degree in co-relation 34892. Up to 2041 conditions per place. [2021-04-28 14:40:51,501 INFO L146 LiptonReduction]: Number of co-enabled transitions 8358 [2021-04-28 14:40:51,690 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:51,690 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:51,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1348 [2021-04-28 14:40:51,691 INFO L480 AbstractCegarLoop]: Abstraction has has 195 places, 767 transitions, 15065 flow [2021-04-28 14:40:51,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:51,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:51,692 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:51,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:51,898 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:51,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:51,898 INFO L82 PathProgramCache]: Analyzing trace with hash 747208712, now seen corresponding path program 1 times [2021-04-28 14:40:51,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:51,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505532544] [2021-04-28 14:40:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:51,926 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:51,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:51,933 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:51,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:51,941 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-04-28 14:40:51,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:51,952 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:40:51,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:51,964 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-04-28 14:40:51,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:40:51,982 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:51,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:51,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:51,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505532544] [2021-04-28 14:40:51,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882864556] [2021-04-28 14:40:51,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:52,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:52,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:52,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:52,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:52,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:52,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:52,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:52,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:52,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:52,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:52,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:52,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:52,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:52,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:52,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:52,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,174 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:40:52,174 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:40:52,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:52,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:40:52,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:40:52,198 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-04-28 14:40:52,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:40:52,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:40:52,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:52,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:40:52,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:52,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:40:52,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:40:52,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:52,250 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:40:52,251 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:40:52,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:40:52,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:52,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:52,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:40:52,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440906342] [2021-04-28 14:40:52,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:40:52,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:52,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:40:52,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:40:52,264 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:52,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 767 transitions, 15065 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:52,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:52,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:52,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:54,210 INFO L129 PetriNetUnfolder]: 2201/4561 cut-off events. [2021-04-28 14:40:54,210 INFO L130 PetriNetUnfolder]: For 50374/50428 co-relation queries the response was YES. [2021-04-28 14:40:54,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39953 conditions, 4561 events. 2201/4561 cut-off events. For 50374/50428 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 40155 event pairs, 0 based on Foata normal form. 22/1403 useless extension candidates. Maximal degree in co-relation 39876. Up to 2773 conditions per place. [2021-04-28 14:40:54,262 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 527 selfloop transitions, 286 changer transitions 12/845 dead transitions. [2021-04-28 14:40:54,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 845 transitions, 17819 flow [2021-04-28 14:40:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-28 14:40:54,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-04-28 14:40:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1490 transitions. [2021-04-28 14:40:54,264 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5815768930523029 [2021-04-28 14:40:54,265 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1490 transitions. [2021-04-28 14:40:54,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1490 transitions. [2021-04-28 14:40:54,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:54,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1490 transitions. [2021-04-28 14:40:54,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 106.42857142857143) internal successors, (1490), 14 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:54,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 183.0) internal successors, (2745), 15 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:54,278 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 183.0) internal successors, (2745), 15 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:54,278 INFO L185 Difference]: Start difference. First operand has 195 places, 767 transitions, 15065 flow. Second operand 14 states and 1490 transitions. [2021-04-28 14:40:54,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 845 transitions, 17819 flow [2021-04-28 14:40:55,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 845 transitions, 17631 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-04-28 14:40:55,174 INFO L241 Difference]: Finished difference. Result has 204 places, 797 transitions, 16253 flow [2021-04-28 14:40:55,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=14877, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=767, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16253, PETRI_PLACES=204, PETRI_TRANSITIONS=797} [2021-04-28 14:40:55,175 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 130 predicate places. [2021-04-28 14:40:55,175 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:55,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 797 transitions, 16253 flow [2021-04-28 14:40:55,175 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 797 transitions, 16253 flow [2021-04-28 14:40:55,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 797 transitions, 16253 flow [2021-04-28 14:40:55,760 INFO L129 PetriNetUnfolder]: 2153/4515 cut-off events. [2021-04-28 14:40:55,760 INFO L130 PetriNetUnfolder]: For 41480/41516 co-relation queries the response was YES. [2021-04-28 14:40:55,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37564 conditions, 4515 events. 2153/4515 cut-off events. For 41480/41516 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 40928 event pairs, 0 based on Foata normal form. 0/1378 useless extension candidates. Maximal degree in co-relation 37486. Up to 2109 conditions per place. [2021-04-28 14:40:55,837 INFO L146 LiptonReduction]: Number of co-enabled transitions 8680 [2021-04-28 14:40:56,001 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:40:56,001 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:40:56,002 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 827 [2021-04-28 14:40:56,002 INFO L480 AbstractCegarLoop]: Abstraction has has 204 places, 797 transitions, 16253 flow [2021-04-28 14:40:56,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:56,003 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:40:56,003 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:40:56,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-04-28 14:40:56,209 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:40:56,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:40:56,209 INFO L82 PathProgramCache]: Analyzing trace with hash -3382078, now seen corresponding path program 1 times [2021-04-28 14:40:56,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:40:56,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533676332] [2021-04-28 14:40:56,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:40:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:56,236 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:40:56,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,243 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:40:56,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:56,250 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:40:56,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,259 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-04-28 14:40:56,261 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-04-28 14:40:56,281 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-04-28 14:40:56,282 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:40:56,305 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:40:56,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:56,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533676332] [2021-04-28 14:40:56,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077330198] [2021-04-28 14:40:56,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:40:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:40:56,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:40:56,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:40:56,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:40:56,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:56,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:56,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:56,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:40:56,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:56,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:40:56,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:56,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:56,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:40:56,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:56,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:56,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:40:56,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:40:56,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,477 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:40:56,478 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:40:56,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:40:56,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:40:56,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:40:56,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:40:56,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:40:56,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,518 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-04-28 14:40:56,519 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-04-28 14:40:56,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:40:56,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-04-28 14:40:56,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:40:56,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-04-28 14:40:56,547 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-04-28 14:40:56,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,551 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:40:56,553 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,557 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:40:56,558 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:40:56,558 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:40:56,559 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:40:56,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:40:56,561 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.1 percent of original size [2021-04-28 14:40:56,565 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.4 percent of original size 30 [2021-04-28 14:40:56,566 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size 40 [2021-04-28 14:40:56,567 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size [2021-04-28 14:40:56,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-28 14:40:56,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:40:56,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:40:56,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:40:56,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700274555] [2021-04-28 14:40:56,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:40:56,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:40:56,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:40:56,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:40:56,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:40:56,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 797 transitions, 16253 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:56,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:40:56,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:40:56,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:40:58,752 INFO L129 PetriNetUnfolder]: 2617/5488 cut-off events. [2021-04-28 14:40:58,752 INFO L130 PetriNetUnfolder]: For 90698/90752 co-relation queries the response was YES. [2021-04-28 14:40:58,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50483 conditions, 5488 events. 2617/5488 cut-off events. For 90698/90752 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 50226 event pairs, 0 based on Foata normal form. 86/1745 useless extension candidates. Maximal degree in co-relation 50403. Up to 2709 conditions per place. [2021-04-28 14:40:58,950 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 319 selfloop transitions, 627 changer transitions 18/984 dead transitions. [2021-04-28 14:40:58,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 984 transitions, 22318 flow [2021-04-28 14:40:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-28 14:40:58,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-04-28 14:40:58,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2025 transitions. [2021-04-28 14:40:58,953 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5823986194995686 [2021-04-28 14:40:58,953 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2025 transitions. [2021-04-28 14:40:58,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2025 transitions. [2021-04-28 14:40:58,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:40:58,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2025 transitions. [2021-04-28 14:40:58,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 106.57894736842105) internal successors, (2025), 19 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:58,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:58,959 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:40:58,959 INFO L185 Difference]: Start difference. First operand has 204 places, 797 transitions, 16253 flow. Second operand 19 states and 2025 transitions. [2021-04-28 14:40:58,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 984 transitions, 22318 flow [2021-04-28 14:40:59,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 984 transitions, 21842 flow, removed 64 selfloop flow, removed 9 redundant places. [2021-04-28 14:40:59,750 INFO L241 Difference]: Finished difference. Result has 219 places, 942 transitions, 21229 flow [2021-04-28 14:40:59,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=15825, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=797, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=500, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=21229, PETRI_PLACES=219, PETRI_TRANSITIONS=942} [2021-04-28 14:40:59,751 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 145 predicate places. [2021-04-28 14:40:59,751 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:40:59,751 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 942 transitions, 21229 flow [2021-04-28 14:40:59,751 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 942 transitions, 21229 flow [2021-04-28 14:40:59,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 219 places, 942 transitions, 21229 flow [2021-04-28 14:41:00,544 INFO L129 PetriNetUnfolder]: 2545/5393 cut-off events. [2021-04-28 14:41:00,544 INFO L130 PetriNetUnfolder]: For 52408/52432 co-relation queries the response was YES. [2021-04-28 14:41:00,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49311 conditions, 5393 events. 2545/5393 cut-off events. For 52408/52432 co-relation queries the response was YES. Maximal size of possible extension queue 846. Compared 50532 event pairs, 0 based on Foata normal form. 0/1653 useless extension candidates. Maximal degree in co-relation 49227. Up to 2637 conditions per place. [2021-04-28 14:41:00,644 INFO L146 LiptonReduction]: Number of co-enabled transitions 10030 [2021-04-28 14:41:00,945 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:00,945 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:00,945 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1194 [2021-04-28 14:41:00,946 INFO L480 AbstractCegarLoop]: Abstraction has has 219 places, 942 transitions, 21229 flow [2021-04-28 14:41:00,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:00,946 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:00,946 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:01,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:01,152 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:01,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:01,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1131076013, now seen corresponding path program 1 times [2021-04-28 14:41:01,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:01,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836498806] [2021-04-28 14:41:01,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:01,174 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:01,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,187 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-04-28 14:41:01,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,199 INFO L142 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-04-28 14:41:01,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,234 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:01,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:01,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836498806] [2021-04-28 14:41:01,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869986887] [2021-04-28 14:41:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:01,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:01,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:01,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:01,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:01,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:01,345 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-04-28 14:41:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:01,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:01,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:01,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:01,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:01,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:01,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:01,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:01,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:01,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:01,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:01,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:01,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:01,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:01,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:01,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:01,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:01,450 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:01,451 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:01,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:01,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:01,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:41:01,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457077745] [2021-04-28 14:41:01,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:41:01,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:01,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:41:01,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:41:01,465 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:01,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 942 transitions, 21229 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:01,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:01,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:01,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:03,427 INFO L129 PetriNetUnfolder]: 2601/5547 cut-off events. [2021-04-28 14:41:03,428 INFO L130 PetriNetUnfolder]: For 62650/62704 co-relation queries the response was YES. [2021-04-28 14:41:03,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54795 conditions, 5547 events. 2601/5547 cut-off events. For 62650/62704 co-relation queries the response was YES. Maximal size of possible extension queue 810. Compared 51650 event pairs, 0 based on Foata normal form. 22/1717 useless extension candidates. Maximal degree in co-relation 54709. Up to 3861 conditions per place. [2021-04-28 14:41:03,496 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 889 selfloop transitions, 113 changer transitions 6/1028 dead transitions. [2021-04-28 14:41:03,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1028 transitions, 24884 flow [2021-04-28 14:41:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:41:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:41:03,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1055 transitions. [2021-04-28 14:41:03,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5765027322404371 [2021-04-28 14:41:03,499 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1055 transitions. [2021-04-28 14:41:03,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1055 transitions. [2021-04-28 14:41:03,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:03,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1055 transitions. [2021-04-28 14:41:03,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.5) internal successors, (1055), 10 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:03,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:03,502 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:03,503 INFO L185 Difference]: Start difference. First operand has 219 places, 942 transitions, 21229 flow. Second operand 10 states and 1055 transitions. [2021-04-28 14:41:03,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 1028 transitions, 24884 flow [2021-04-28 14:41:05,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 1028 transitions, 23313 flow, removed 658 selfloop flow, removed 11 redundant places. [2021-04-28 14:41:05,135 INFO L241 Difference]: Finished difference. Result has 220 places, 958 transitions, 20398 flow [2021-04-28 14:41:05,135 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=19716, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=829, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20398, PETRI_PLACES=220, PETRI_TRANSITIONS=958} [2021-04-28 14:41:05,136 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 146 predicate places. [2021-04-28 14:41:05,136 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:05,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 958 transitions, 20398 flow [2021-04-28 14:41:05,136 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 958 transitions, 20398 flow [2021-04-28 14:41:05,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 958 transitions, 20398 flow [2021-04-28 14:41:06,014 INFO L129 PetriNetUnfolder]: 2577/5480 cut-off events. [2021-04-28 14:41:06,014 INFO L130 PetriNetUnfolder]: For 56497/56509 co-relation queries the response was YES. [2021-04-28 14:41:06,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47556 conditions, 5480 events. 2577/5480 cut-off events. For 56497/56509 co-relation queries the response was YES. Maximal size of possible extension queue 865. Compared 51878 event pairs, 0 based on Foata normal form. 0/1685 useless extension candidates. Maximal degree in co-relation 47470. Up to 2673 conditions per place. [2021-04-28 14:41:06,100 INFO L146 LiptonReduction]: Number of co-enabled transitions 10174 [2021-04-28 14:41:06,454 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:06,455 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:06,455 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1319 [2021-04-28 14:41:06,455 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 958 transitions, 20398 flow [2021-04-28 14:41:06,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:06,456 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:06,456 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:06,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-04-28 14:41:06,656 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:06,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:06,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1239849114, now seen corresponding path program 1 times [2021-04-28 14:41:06,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:06,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246262600] [2021-04-28 14:41:06,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:06,687 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:06,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,693 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:06,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,702 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:06,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:06,711 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:41:06,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,733 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:41:06,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:06,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246262600] [2021-04-28 14:41:06,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99074061] [2021-04-28 14:41:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:06,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:06,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:06,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:06,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:06,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:06,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:06,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:06,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:06,901 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:41:06,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:06,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:06,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:06,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:06,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:06,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:06,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:06,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:06,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:06,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:06,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:06,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:06,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:06,962 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:06,962 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:06,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:06,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:06,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:06,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:06,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884701859] [2021-04-28 14:41:06,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:06,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:06,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:06,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:06,980 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:06,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 958 transitions, 20398 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:06,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:06,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:06,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:09,105 INFO L129 PetriNetUnfolder]: 2593/5531 cut-off events. [2021-04-28 14:41:09,105 INFO L130 PetriNetUnfolder]: For 68918/68950 co-relation queries the response was YES. [2021-04-28 14:41:09,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52105 conditions, 5531 events. 2593/5531 cut-off events. For 68918/68950 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 52113 event pairs, 0 based on Foata normal form. 18/1715 useless extension candidates. Maximal degree in co-relation 52017. Up to 3482 conditions per place. [2021-04-28 14:41:09,182 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 702 selfloop transitions, 280 changer transitions 12/1014 dead transitions. [2021-04-28 14:41:09,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 1014 transitions, 23202 flow [2021-04-28 14:41:09,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-28 14:41:09,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-04-28 14:41:09,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1801 transitions. [2021-04-28 14:41:09,184 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5789135326261652 [2021-04-28 14:41:09,184 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1801 transitions. [2021-04-28 14:41:09,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1801 transitions. [2021-04-28 14:41:09,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:09,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1801 transitions. [2021-04-28 14:41:09,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 105.94117647058823) internal successors, (1801), 17 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:09,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:09,189 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:09,189 INFO L185 Difference]: Start difference. First operand has 220 places, 958 transitions, 20398 flow. Second operand 17 states and 1801 transitions. [2021-04-28 14:41:09,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 1014 transitions, 23202 flow [2021-04-28 14:41:10,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 1014 transitions, 23008 flow, removed 41 selfloop flow, removed 5 redundant places. [2021-04-28 14:41:10,460 INFO L241 Difference]: Finished difference. Result has 232 places, 954 transitions, 20762 flow [2021-04-28 14:41:10,461 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=20204, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20762, PETRI_PLACES=232, PETRI_TRANSITIONS=954} [2021-04-28 14:41:10,462 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 158 predicate places. [2021-04-28 14:41:10,462 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:10,462 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 954 transitions, 20762 flow [2021-04-28 14:41:10,462 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 954 transitions, 20762 flow [2021-04-28 14:41:10,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 954 transitions, 20762 flow [2021-04-28 14:41:11,306 INFO L129 PetriNetUnfolder]: 2545/5508 cut-off events. [2021-04-28 14:41:11,306 INFO L130 PetriNetUnfolder]: For 60089/60113 co-relation queries the response was YES. [2021-04-28 14:41:11,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48202 conditions, 5508 events. 2545/5508 cut-off events. For 60089/60113 co-relation queries the response was YES. Maximal size of possible extension queue 920. Compared 53008 event pairs, 0 based on Foata normal form. 0/1702 useless extension candidates. Maximal degree in co-relation 48115. Up to 2645 conditions per place. [2021-04-28 14:41:11,406 INFO L146 LiptonReduction]: Number of co-enabled transitions 10150 [2021-04-28 14:41:11,915 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:11,915 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:11,915 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1453 [2021-04-28 14:41:11,916 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 954 transitions, 20762 flow [2021-04-28 14:41:11,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:11,916 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:11,916 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:12,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-04-28 14:41:12,117 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:12,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:12,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1241194731, now seen corresponding path program 2 times [2021-04-28 14:41:12,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:12,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926732434] [2021-04-28 14:41:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:12,160 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:12,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,166 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:12,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:12,182 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:41:12,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,191 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:41:12,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,203 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:12,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:12,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926732434] [2021-04-28 14:41:12,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541104065] [2021-04-28 14:41:12,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:12,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:41:12,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:12,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-04-28 14:41:12,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:12,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:12,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:12,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:12,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:12,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:12,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:12,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:12,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:12,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:12,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:12,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:12,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:12,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:12,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:12,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:12,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,396 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:41:12,397 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:41:12,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:12,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:41:12,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-28 14:41:12,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-04-28 14:41:12,423 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 14:41:12,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,426 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:41:12,427 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,431 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-04-28 14:41:12,432 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-04-28 14:41:12,433 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:41:12,434 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:12,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:12,436 INFO L142 QuantifierPusher]: treesize reduction -7, result has 110.4 percent of original size [2021-04-28 14:41:12,464 INFO L147 QuantifierPusher]: treesize reduction 293, result has 64.3 percent of original size 528 [2021-04-28 14:41:12,471 INFO L147 QuantifierPusher]: treesize reduction 293, result has 64.3 percent of original size 528 [2021-04-28 14:41:12,477 INFO L142 QuantifierPusher]: treesize reduction 293, result has 64.3 percent of original size [2021-04-28 14:41:12,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 528 [2021-04-28 14:41:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:12,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:12,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-04-28 14:41:12,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533981390] [2021-04-28 14:41:12,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-28 14:41:12,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:12,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-28 14:41:12,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-04-28 14:41:12,512 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:12,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 954 transitions, 20762 flow. Second operand has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:12,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:12,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:12,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:15,202 INFO L129 PetriNetUnfolder]: 2849/6141 cut-off events. [2021-04-28 14:41:15,202 INFO L130 PetriNetUnfolder]: For 104822/104876 co-relation queries the response was YES. [2021-04-28 14:41:15,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59393 conditions, 6141 events. 2849/6141 cut-off events. For 104822/104876 co-relation queries the response was YES. Maximal size of possible extension queue 945. Compared 58956 event pairs, 0 based on Foata normal form. 54/1948 useless extension candidates. Maximal degree in co-relation 59304. Up to 3093 conditions per place. [2021-04-28 14:41:15,286 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 346 selfloop transitions, 697 changer transitions 6/1069 dead transitions. [2021-04-28 14:41:15,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 1069 transitions, 25924 flow [2021-04-28 14:41:15,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-28 14:41:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-04-28 14:41:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2027 transitions. [2021-04-28 14:41:15,290 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5829738280126546 [2021-04-28 14:41:15,290 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2027 transitions. [2021-04-28 14:41:15,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2027 transitions. [2021-04-28 14:41:15,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:15,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2027 transitions. [2021-04-28 14:41:15,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 106.6842105263158) internal successors, (2027), 19 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:15,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:15,295 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:15,295 INFO L185 Difference]: Start difference. First operand has 232 places, 954 transitions, 20762 flow. Second operand 19 states and 2027 transitions. [2021-04-28 14:41:15,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 1069 transitions, 25924 flow [2021-04-28 14:41:16,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 1069 transitions, 25268 flow, removed 69 selfloop flow, removed 12 redundant places. [2021-04-28 14:41:16,840 INFO L241 Difference]: Finished difference. Result has 242 places, 1051 transitions, 25095 flow [2021-04-28 14:41:16,841 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=20190, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=954, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=607, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=25095, PETRI_PLACES=242, PETRI_TRANSITIONS=1051} [2021-04-28 14:41:16,842 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 168 predicate places. [2021-04-28 14:41:16,842 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:16,842 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 1051 transitions, 25095 flow [2021-04-28 14:41:16,842 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 1051 transitions, 25095 flow [2021-04-28 14:41:16,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 1051 transitions, 25095 flow [2021-04-28 14:41:17,978 INFO L129 PetriNetUnfolder]: 2825/6118 cut-off events. [2021-04-28 14:41:17,978 INFO L130 PetriNetUnfolder]: For 69192/69228 co-relation queries the response was YES. [2021-04-28 14:41:18,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58365 conditions, 6118 events. 2825/6118 cut-off events. For 69192/69228 co-relation queries the response was YES. Maximal size of possible extension queue 1060. Compared 60072 event pairs, 0 based on Foata normal form. 0/1892 useless extension candidates. Maximal degree in co-relation 58275. Up to 3069 conditions per place. [2021-04-28 14:41:18,084 INFO L146 LiptonReduction]: Number of co-enabled transitions 11076 [2021-04-28 14:41:18,603 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:18,603 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:18,603 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1761 [2021-04-28 14:41:18,604 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 1051 transitions, 25095 flow [2021-04-28 14:41:18,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:18,604 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:18,605 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:18,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-04-28 14:41:18,805 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:18,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:18,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1994185320, now seen corresponding path program 2 times [2021-04-28 14:41:18,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:18,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113809731] [2021-04-28 14:41:18,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:18,830 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:18,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,841 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:18,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:18,853 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:41:18,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:18,864 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:41:18,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:18,875 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-04-28 14:41:18,875 INFO L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-04-28 14:41:18,891 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:41:18,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:18,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113809731] [2021-04-28 14:41:18,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152438843] [2021-04-28 14:41:18,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:18,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:41:18,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:18,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-04-28 14:41:18,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:18,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:41:18,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:18,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:18,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:19,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:19,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:19,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:19,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:19,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:19,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:19,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:19,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:19,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:19,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:19,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:19,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:19,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:19,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:19,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:19,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,081 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:41:19,081 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:41:19,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:19,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:41:19,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:19,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:41:19,106 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-04-28 14:41:19,106 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:41:19,107 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:19,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:19,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:19,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:19,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:19,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:19,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-04-28 14:41:19,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451317885] [2021-04-28 14:41:19,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-28 14:41:19,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:19,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-28 14:41:19,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-04-28 14:41:19,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:19,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 1051 transitions, 25095 flow. Second operand has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:19,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:19,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:19,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:22,270 INFO L129 PetriNetUnfolder]: 3225/7037 cut-off events. [2021-04-28 14:41:22,270 INFO L130 PetriNetUnfolder]: For 139181/139235 co-relation queries the response was YES. [2021-04-28 14:41:22,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73858 conditions, 7037 events. 3225/7037 cut-off events. For 139181/139235 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 69548 event pairs, 0 based on Foata normal form. 86/2241 useless extension candidates. Maximal degree in co-relation 73766. Up to 3706 conditions per place. [2021-04-28 14:41:22,374 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 627 selfloop transitions, 576 changer transitions 15/1238 dead transitions. [2021-04-28 14:41:22,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 1238 transitions, 32621 flow [2021-04-28 14:41:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-28 14:41:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-04-28 14:41:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1813 transitions. [2021-04-28 14:41:22,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5827708132433301 [2021-04-28 14:41:22,377 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1813 transitions. [2021-04-28 14:41:22,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1813 transitions. [2021-04-28 14:41:22,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:22,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1813 transitions. [2021-04-28 14:41:22,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 106.6470588235294) internal successors, (1813), 17 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:22,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:22,384 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:22,384 INFO L185 Difference]: Start difference. First operand has 242 places, 1051 transitions, 25095 flow. Second operand 17 states and 1813 transitions. [2021-04-28 14:41:22,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 1238 transitions, 32621 flow [2021-04-28 14:41:25,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 1238 transitions, 31120 flow, removed 554 selfloop flow, removed 14 redundant places. [2021-04-28 14:41:25,863 INFO L241 Difference]: Finished difference. Result has 250 places, 1171 transitions, 29556 flow [2021-04-28 14:41:25,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=23838, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=473, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=29556, PETRI_PLACES=250, PETRI_TRANSITIONS=1171} [2021-04-28 14:41:25,864 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 176 predicate places. [2021-04-28 14:41:25,864 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:25,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 250 places, 1171 transitions, 29556 flow [2021-04-28 14:41:25,865 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 250 places, 1171 transitions, 29556 flow [2021-04-28 14:41:25,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 250 places, 1171 transitions, 29556 flow [2021-04-28 14:41:27,204 INFO L129 PetriNetUnfolder]: 3165/6975 cut-off events. [2021-04-28 14:41:27,204 INFO L130 PetriNetUnfolder]: For 78325/78367 co-relation queries the response was YES. [2021-04-28 14:41:27,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68970 conditions, 6975 events. 3165/6975 cut-off events. For 78325/78367 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 70978 event pairs, 0 based on Foata normal form. 0/2152 useless extension candidates. Maximal degree in co-relation 68877. Up to 3585 conditions per place. [2021-04-28 14:41:27,393 INFO L146 LiptonReduction]: Number of co-enabled transitions 12202 [2021-04-28 14:41:27,941 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:27,941 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:27,941 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2077 [2021-04-28 14:41:27,942 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 1171 transitions, 29556 flow [2021-04-28 14:41:27,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:27,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:27,942 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:28,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:28,143 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:28,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1074507859, now seen corresponding path program 2 times [2021-04-28 14:41:28,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:28,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037654646] [2021-04-28 14:41:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:28,169 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:28,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,175 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:41:28,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:28,183 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:41:28,184 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:41:28,201 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:41:28,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,212 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:41:28,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,225 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-04-28 14:41:28,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:28,238 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:28,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:28,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037654646] [2021-04-28 14:41:28,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823855710] [2021-04-28 14:41:28,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:28,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:41:28,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:28,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:41:28,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:28,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:28,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:28,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:28,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:28,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:28,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:28,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:28,374 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:41:28,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:28,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:28,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:28,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:28,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:28,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:28,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:28,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:28,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:28,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:28,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:28,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:28,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:28,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:28,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:28,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:28,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:28,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:28,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:28,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:28,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:28,492 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:28,492 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:28,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:28,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:28,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:41:28,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057021837] [2021-04-28 14:41:28,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:41:28,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:28,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:41:28,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:41:28,511 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:28,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 1171 transitions, 29556 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:28,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:28,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:28,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:31,908 INFO L129 PetriNetUnfolder]: 3185/7030 cut-off events. [2021-04-28 14:41:31,908 INFO L130 PetriNetUnfolder]: For 91166/91220 co-relation queries the response was YES. [2021-04-28 14:41:31,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74675 conditions, 7030 events. 3185/7030 cut-off events. For 91166/91220 co-relation queries the response was YES. Maximal size of possible extension queue 1107. Compared 70276 event pairs, 0 based on Foata normal form. 22/2193 useless extension candidates. Maximal degree in co-relation 74580. Up to 4724 conditions per place. [2021-04-28 14:41:32,037 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1011 selfloop transitions, 234 changer transitions 3/1268 dead transitions. [2021-04-28 14:41:32,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 1268 transitions, 33727 flow [2021-04-28 14:41:32,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-28 14:41:32,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-04-28 14:41:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1576 transitions. [2021-04-28 14:41:32,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5741347905282331 [2021-04-28 14:41:32,040 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1576 transitions. [2021-04-28 14:41:32,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1576 transitions. [2021-04-28 14:41:32,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:32,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1576 transitions. [2021-04-28 14:41:32,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 105.06666666666666) internal successors, (1576), 15 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:32,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:32,045 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:32,045 INFO L185 Difference]: Start difference. First operand has 250 places, 1171 transitions, 29556 flow. Second operand 15 states and 1576 transitions. [2021-04-28 14:41:32,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 1268 transitions, 33727 flow [2021-04-28 14:41:34,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 1268 transitions, 32172 flow, removed 648 selfloop flow, removed 11 redundant places. [2021-04-28 14:41:34,986 INFO L241 Difference]: Finished difference. Result has 255 places, 1185 transitions, 29154 flow [2021-04-28 14:41:34,987 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=28069, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=29154, PETRI_PLACES=255, PETRI_TRANSITIONS=1185} [2021-04-28 14:41:34,988 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 181 predicate places. [2021-04-28 14:41:34,988 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:34,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 255 places, 1185 transitions, 29154 flow [2021-04-28 14:41:34,988 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 255 places, 1185 transitions, 29154 flow [2021-04-28 14:41:35,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 255 places, 1185 transitions, 29154 flow [2021-04-28 14:41:36,447 INFO L129 PetriNetUnfolder]: 3173/6982 cut-off events. [2021-04-28 14:41:36,447 INFO L130 PetriNetUnfolder]: For 74646/74718 co-relation queries the response was YES. [2021-04-28 14:41:36,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67793 conditions, 6982 events. 3173/6982 cut-off events. For 74646/74718 co-relation queries the response was YES. Maximal size of possible extension queue 1185. Compared 70817 event pairs, 0 based on Foata normal form. 0/2159 useless extension candidates. Maximal degree in co-relation 67699. Up to 3593 conditions per place. [2021-04-28 14:41:36,591 INFO L146 LiptonReduction]: Number of co-enabled transitions 12338 [2021-04-28 14:41:37,053 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:37,053 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:37,053 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2065 [2021-04-28 14:41:37,054 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 1185 transitions, 29154 flow [2021-04-28 14:41:37,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:37,054 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:37,055 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:37,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-04-28 14:41:37,264 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:37,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:37,264 INFO L82 PathProgramCache]: Analyzing trace with hash -432348134, now seen corresponding path program 1 times [2021-04-28 14:41:37,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:37,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121752294] [2021-04-28 14:41:37,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:37,292 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:37,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,298 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:41:37,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:37,307 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-04-28 14:41:37,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,318 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-04-28 14:41:37,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:37,337 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:41:37,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:37,353 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-04-28 14:41:37,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:37,368 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:37,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:37,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121752294] [2021-04-28 14:41:37,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749255534] [2021-04-28 14:41:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:37,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:41:37,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:37,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:37,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:37,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:37,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:37,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:37,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:37,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:37,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:37,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:37,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:37,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:37,550 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:41:37,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:41:37,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:41:37,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:37,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:37,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:37,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:37,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:37,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:37,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:37,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:37,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,595 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:41:37,596 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:41:37,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:41:37,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:41:37,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:37,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:41:37,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:41:37,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:41:37,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:37,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-28 14:41:37,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:37,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-28 14:41:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 14:41:37,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:37,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:37,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:37,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:37,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:41:37,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225255123] [2021-04-28 14:41:37,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:41:37,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:37,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:41:37,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:41:37,684 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:37,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 1185 transitions, 29154 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:37,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:37,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:37,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:41,358 INFO L129 PetriNetUnfolder]: 3237/7158 cut-off events. [2021-04-28 14:41:41,358 INFO L130 PetriNetUnfolder]: For 82002/82068 co-relation queries the response was YES. [2021-04-28 14:41:41,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74431 conditions, 7158 events. 3237/7158 cut-off events. For 82002/82068 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 71741 event pairs, 0 based on Foata normal form. 22/2226 useless extension candidates. Maximal degree in co-relation 74335. Up to 4701 conditions per place. [2021-04-28 14:41:41,470 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 968 selfloop transitions, 265 changer transitions 12/1265 dead transitions. [2021-04-28 14:41:41,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 1265 transitions, 33156 flow [2021-04-28 14:41:41,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:41:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:41:41,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1687 transitions. [2021-04-28 14:41:41,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5761612021857924 [2021-04-28 14:41:41,473 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1687 transitions. [2021-04-28 14:41:41,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1687 transitions. [2021-04-28 14:41:41,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:41,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1687 transitions. [2021-04-28 14:41:41,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.4375) internal successors, (1687), 16 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:41,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:41,477 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:41,477 INFO L185 Difference]: Start difference. First operand has 255 places, 1185 transitions, 29154 flow. Second operand 16 states and 1687 transitions. [2021-04-28 14:41:41,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 1265 transitions, 33156 flow [2021-04-28 14:41:43,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 1265 transitions, 32724 flow, removed 49 selfloop flow, removed 9 redundant places. [2021-04-28 14:41:43,815 INFO L241 Difference]: Finished difference. Result has 264 places, 1201 transitions, 29948 flow [2021-04-28 14:41:43,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=28722, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=29948, PETRI_PLACES=264, PETRI_TRANSITIONS=1201} [2021-04-28 14:41:43,817 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 190 predicate places. [2021-04-28 14:41:43,817 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:43,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 1201 transitions, 29948 flow [2021-04-28 14:41:43,817 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 1201 transitions, 29948 flow [2021-04-28 14:41:43,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 264 places, 1201 transitions, 29948 flow [2021-04-28 14:41:45,325 INFO L129 PetriNetUnfolder]: 3189/7097 cut-off events. [2021-04-28 14:41:45,326 INFO L130 PetriNetUnfolder]: For 78169/78205 co-relation queries the response was YES. [2021-04-28 14:41:45,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68962 conditions, 7097 events. 3189/7097 cut-off events. For 78169/78205 co-relation queries the response was YES. Maximal size of possible extension queue 1254. Compared 73395 event pairs, 0 based on Foata normal form. 0/2203 useless extension candidates. Maximal degree in co-relation 68866. Up to 3625 conditions per place. [2021-04-28 14:41:45,512 INFO L146 LiptonReduction]: Number of co-enabled transitions 12490 [2021-04-28 14:41:45,969 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:45,969 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:45,969 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2152 [2021-04-28 14:41:45,970 INFO L480 AbstractCegarLoop]: Abstraction has has 264 places, 1201 transitions, 29948 flow [2021-04-28 14:41:45,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:45,970 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:45,970 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:46,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:46,171 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:46,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1338153734, now seen corresponding path program 1 times [2021-04-28 14:41:46,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:46,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646745699] [2021-04-28 14:41:46,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:46,198 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:46,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,205 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:41:46,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,216 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:41:46,217 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:41:46,236 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:41:46,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,247 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:41:46,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,259 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:41:46,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:41:46,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:46,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646745699] [2021-04-28 14:41:46,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432772442] [2021-04-28 14:41:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:46,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:41:46,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:46,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:46,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:46,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:46,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:46,410 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:41:46,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:46,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:41:46,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:46,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:46,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:46,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:46,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:46,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:46,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:46,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:46,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:46,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:46,550 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:46,551 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:46,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:46,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:46,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:41:46,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097754570] [2021-04-28 14:41:46,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:41:46,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:46,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:41:46,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:41:46,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:46,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 1201 transitions, 29948 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:46,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:46,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:46,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:49,535 INFO L129 PetriNetUnfolder]: 3205/7195 cut-off events. [2021-04-28 14:41:49,535 INFO L130 PetriNetUnfolder]: For 87798/87864 co-relation queries the response was YES. [2021-04-28 14:41:49,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74710 conditions, 7195 events. 3205/7195 cut-off events. For 87798/87864 co-relation queries the response was YES. Maximal size of possible extension queue 1171. Compared 73392 event pairs, 0 based on Foata normal form. 22/2247 useless extension candidates. Maximal degree in co-relation 74612. Up to 4863 conditions per place. [2021-04-28 14:41:49,647 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1087 selfloop transitions, 132 changer transitions 6/1245 dead transitions. [2021-04-28 14:41:49,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 1245 transitions, 33158 flow [2021-04-28 14:41:49,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-28 14:41:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-28 14:41:49,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1056 transitions. [2021-04-28 14:41:49,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5770491803278689 [2021-04-28 14:41:49,649 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1056 transitions. [2021-04-28 14:41:49,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1056 transitions. [2021-04-28 14:41:49,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:49,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1056 transitions. [2021-04-28 14:41:49,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.6) internal successors, (1056), 10 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:49,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:49,653 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:49,653 INFO L185 Difference]: Start difference. First operand has 264 places, 1201 transitions, 29948 flow. Second operand 10 states and 1056 transitions. [2021-04-28 14:41:49,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 1245 transitions, 33158 flow [2021-04-28 14:41:52,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 1245 transitions, 32884 flow, removed 85 selfloop flow, removed 9 redundant places. [2021-04-28 14:41:52,178 INFO L241 Difference]: Finished difference. Result has 266 places, 1203 transitions, 29936 flow [2021-04-28 14:41:52,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=29722, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1069, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=29936, PETRI_PLACES=266, PETRI_TRANSITIONS=1203} [2021-04-28 14:41:52,180 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 192 predicate places. [2021-04-28 14:41:52,180 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:41:52,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 266 places, 1203 transitions, 29936 flow [2021-04-28 14:41:52,180 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 266 places, 1203 transitions, 29936 flow [2021-04-28 14:41:52,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 266 places, 1203 transitions, 29936 flow [2021-04-28 14:41:53,742 INFO L129 PetriNetUnfolder]: 3181/7120 cut-off events. [2021-04-28 14:41:53,742 INFO L130 PetriNetUnfolder]: For 77676/77712 co-relation queries the response was YES. [2021-04-28 14:41:53,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69167 conditions, 7120 events. 3181/7120 cut-off events. For 77676/77712 co-relation queries the response was YES. Maximal size of possible extension queue 1253. Compared 74074 event pairs, 0 based on Foata normal form. 0/2214 useless extension candidates. Maximal degree in co-relation 69068. Up to 3605 conditions per place. [2021-04-28 14:41:53,872 INFO L146 LiptonReduction]: Number of co-enabled transitions 12538 [2021-04-28 14:41:54,293 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:41:54,293 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:41:54,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2113 [2021-04-28 14:41:54,293 INFO L480 AbstractCegarLoop]: Abstraction has has 266 places, 1203 transitions, 29936 flow [2021-04-28 14:41:54,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:54,294 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:41:54,294 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:41:54,501 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-04-28 14:41:54,502 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:41:54,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:41:54,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1870929504, now seen corresponding path program 2 times [2021-04-28 14:41:54,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:41:54,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671685102] [2021-04-28 14:41:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:41:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:41:54,525 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:41:54,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,531 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:41:54,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,539 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:41:54,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:54,548 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:41:54,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,559 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:41:54,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,571 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-04-28 14:41:54,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:54,584 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:41:54,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:54,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671685102] [2021-04-28 14:41:54,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611729677] [2021-04-28 14:41:54,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:41:54,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:41:54,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:41:54,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:41:54,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:41:54,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:41:54,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:54,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:41:54,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:41:54,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:54,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:41:54,755 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:41:54,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:54,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:41:54,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:54,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:54,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:41:54,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:41:54,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:54,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:54,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:54,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:54,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:41:54,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:54,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:54,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:41:54,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:41:54,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:41:54,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:41:54,832 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:41:54,833 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:41:54,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:41:54,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:41:54,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:41:54,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:41:54,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97053683] [2021-04-28 14:41:54,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:41:54,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:41:54,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:41:54,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:41:54,853 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:41:54,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 1203 transitions, 29936 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:54,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:41:54,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:41:54,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:41:58,574 INFO L129 PetriNetUnfolder]: 3297/7410 cut-off events. [2021-04-28 14:41:58,574 INFO L130 PetriNetUnfolder]: For 100253/100319 co-relation queries the response was YES. [2021-04-28 14:41:58,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76783 conditions, 7410 events. 3297/7410 cut-off events. For 100253/100319 co-relation queries the response was YES. Maximal size of possible extension queue 1231. Compared 76000 event pairs, 0 based on Foata normal form. 22/2306 useless extension candidates. Maximal degree in co-relation 76682. Up to 4597 conditions per place. [2021-04-28 14:41:58,688 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 933 selfloop transitions, 360 changer transitions 3/1316 dead transitions. [2021-04-28 14:41:58,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 1316 transitions, 34642 flow [2021-04-28 14:41:58,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-28 14:41:58,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-04-28 14:41:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1580 transitions. [2021-04-28 14:41:58,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.575591985428051 [2021-04-28 14:41:58,690 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1580 transitions. [2021-04-28 14:41:58,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1580 transitions. [2021-04-28 14:41:58,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:41:58,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1580 transitions. [2021-04-28 14:41:58,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 105.33333333333333) internal successors, (1580), 15 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:58,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:58,696 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 183.0) internal successors, (2928), 16 states have internal predecessors, (2928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:41:58,696 INFO L185 Difference]: Start difference. First operand has 266 places, 1203 transitions, 29936 flow. Second operand 15 states and 1580 transitions. [2021-04-28 14:41:58,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 1316 transitions, 34642 flow [2021-04-28 14:42:01,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 1316 transitions, 34469 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-04-28 14:42:01,340 INFO L241 Difference]: Finished difference. Result has 276 places, 1237 transitions, 31795 flow [2021-04-28 14:42:01,341 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=29763, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31795, PETRI_PLACES=276, PETRI_TRANSITIONS=1237} [2021-04-28 14:42:01,342 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 202 predicate places. [2021-04-28 14:42:01,342 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:01,342 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 1237 transitions, 31795 flow [2021-04-28 14:42:01,342 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 1237 transitions, 31795 flow [2021-04-28 14:42:01,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 276 places, 1237 transitions, 31795 flow [2021-04-28 14:42:02,844 INFO L129 PetriNetUnfolder]: 3285/7344 cut-off events. [2021-04-28 14:42:02,845 INFO L130 PetriNetUnfolder]: For 91889/91961 co-relation queries the response was YES. [2021-04-28 14:42:02,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73075 conditions, 7344 events. 3285/7344 cut-off events. For 91889/91961 co-relation queries the response was YES. Maximal size of possible extension queue 1317. Compared 76346 event pairs, 0 based on Foata normal form. 0/2270 useless extension candidates. Maximal degree in co-relation 72973. Up to 3733 conditions per place. [2021-04-28 14:42:03,051 INFO L146 LiptonReduction]: Number of co-enabled transitions 12826 [2021-04-28 14:42:03,515 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:03,515 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:03,515 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2173 [2021-04-28 14:42:03,516 INFO L480 AbstractCegarLoop]: Abstraction has has 276 places, 1237 transitions, 31795 flow [2021-04-28 14:42:03,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:03,516 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:03,516 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:03,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-04-28 14:42:03,730 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:03,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:03,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1720889959, now seen corresponding path program 3 times [2021-04-28 14:42:03,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:03,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872465840] [2021-04-28 14:42:03,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:03,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:03,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,764 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:42:03,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,772 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:03,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:03,782 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:03,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:03,793 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:42:03,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:03,804 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-04-28 14:42:03,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:03,816 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:03,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:03,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872465840] [2021-04-28 14:42:03,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997985768] [2021-04-28 14:42:03,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:03,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-28 14:42:03,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:03,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:42:03,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:03,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:03,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:03,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:03,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:03,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:03,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:03,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:03,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:42:03,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:03,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:03,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:42:03,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:03,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:03,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:03,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:03,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:03,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:03,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:03,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:03,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:03,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:04,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:04,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:04,018 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-04-28 14:42:04,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:04,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:04,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:04,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:04,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:04,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:04,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:04,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:04,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:04,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:04,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:04,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:04,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:04,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:04,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:04,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:04,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:04,072 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:42:04,073 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:42:04,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:04,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:04,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:42:04,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463870070] [2021-04-28 14:42:04,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:42:04,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:04,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:42:04,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:42:04,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:04,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 1237 transitions, 31795 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:04,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:04,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:04,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:07,562 INFO L129 PetriNetUnfolder]: 3349/7470 cut-off events. [2021-04-28 14:42:07,562 INFO L130 PetriNetUnfolder]: For 106171/106237 co-relation queries the response was YES. [2021-04-28 14:42:07,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79815 conditions, 7470 events. 3349/7470 cut-off events. For 106171/106237 co-relation queries the response was YES. Maximal size of possible extension queue 1217. Compared 76143 event pairs, 0 based on Foata normal form. 22/2325 useless extension candidates. Maximal degree in co-relation 79711. Up to 4443 conditions per place. [2021-04-28 14:42:07,717 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 837 selfloop transitions, 461 changer transitions 3/1321 dead transitions. [2021-04-28 14:42:07,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1321 transitions, 35949 flow [2021-04-28 14:42:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-28 14:42:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-04-28 14:42:07,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2004 transitions. [2021-04-28 14:42:07,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5763589301121657 [2021-04-28 14:42:07,719 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2004 transitions. [2021-04-28 14:42:07,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2004 transitions. [2021-04-28 14:42:07,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:07,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2004 transitions. [2021-04-28 14:42:07,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 105.47368421052632) internal successors, (2004), 19 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:07,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:07,724 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:07,724 INFO L185 Difference]: Start difference. First operand has 276 places, 1237 transitions, 31795 flow. Second operand 19 states and 2004 transitions. [2021-04-28 14:42:07,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1321 transitions, 35949 flow [2021-04-28 14:42:10,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 1321 transitions, 35449 flow, removed 49 selfloop flow, removed 13 redundant places. [2021-04-28 14:42:10,911 INFO L241 Difference]: Finished difference. Result has 283 places, 1254 transitions, 33174 flow [2021-04-28 14:42:10,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=31303, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=444, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=776, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=33174, PETRI_PLACES=283, PETRI_TRANSITIONS=1254} [2021-04-28 14:42:10,913 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 209 predicate places. [2021-04-28 14:42:10,913 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:10,913 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 1254 transitions, 33174 flow [2021-04-28 14:42:10,913 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 1254 transitions, 33174 flow [2021-04-28 14:42:10,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 283 places, 1254 transitions, 33174 flow [2021-04-28 14:42:12,551 INFO L129 PetriNetUnfolder]: 3337/7458 cut-off events. [2021-04-28 14:42:12,552 INFO L130 PetriNetUnfolder]: For 98379/98439 co-relation queries the response was YES. [2021-04-28 14:42:12,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75816 conditions, 7458 events. 3337/7458 cut-off events. For 98379/98439 co-relation queries the response was YES. Maximal size of possible extension queue 1259. Compared 77797 event pairs, 0 based on Foata normal form. 0/2300 useless extension candidates. Maximal degree in co-relation 75715. Up to 3793 conditions per place. [2021-04-28 14:42:12,698 INFO L146 LiptonReduction]: Number of co-enabled transitions 12970 [2021-04-28 14:42:13,464 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:13,464 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:13,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2551 [2021-04-28 14:42:13,465 INFO L480 AbstractCegarLoop]: Abstraction has has 283 places, 1254 transitions, 33174 flow [2021-04-28 14:42:13,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:13,465 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:13,465 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:13,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-04-28 14:42:13,666 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:13,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:13,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1089557768, now seen corresponding path program 3 times [2021-04-28 14:42:13,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:13,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715204354] [2021-04-28 14:42:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:13,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,698 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:42:13,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:13,706 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-04-28 14:42:13,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,715 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-04-28 14:42:13,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:42:13,731 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:42:13,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:13,743 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:42:13,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:13,756 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:42:13,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:13,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715204354] [2021-04-28 14:42:13,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281109528] [2021-04-28 14:42:13,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:13,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-28 14:42:13,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:13,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2021-04-28 14:42:13,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:13,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 14:42:13,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:13,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:13,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:13,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:13,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:13,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:13,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:13,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:13,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:13,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:13,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:13,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:13,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:13,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:13,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:13,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:13,923 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:42:13,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:42:13,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:42:13,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:13,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:13,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:13,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:13,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:13,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:13,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:13,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:13,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:13,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:13,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:13,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:13,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:13,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:13,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:14,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:14,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:14,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:14,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:14,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:14,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:14,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:14,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:14,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:14,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:14,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:14,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:14,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:14,040 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:42:14,040 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:42:14,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:14,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:14,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:42:14,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379811108] [2021-04-28 14:42:14,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:42:14,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:14,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:42:14,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:42:14,070 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:14,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 1254 transitions, 33174 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:14,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:14,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:14,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:17,635 INFO L129 PetriNetUnfolder]: 3353/7507 cut-off events. [2021-04-28 14:42:17,636 INFO L130 PetriNetUnfolder]: For 110247/110313 co-relation queries the response was YES. [2021-04-28 14:42:17,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81763 conditions, 7507 events. 3353/7507 cut-off events. For 110247/110313 co-relation queries the response was YES. Maximal size of possible extension queue 1245. Compared 76869 event pairs, 0 based on Foata normal form. 22/2336 useless extension candidates. Maximal degree in co-relation 81660. Up to 5007 conditions per place. [2021-04-28 14:42:17,768 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1084 selfloop transitions, 183 changer transitions 3/1290 dead transitions. [2021-04-28 14:42:17,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 1290 transitions, 36370 flow [2021-04-28 14:42:17,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 14:42:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 14:42:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1164 transitions. [2021-04-28 14:42:17,770 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5782414307004471 [2021-04-28 14:42:17,770 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1164 transitions. [2021-04-28 14:42:17,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1164 transitions. [2021-04-28 14:42:17,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:17,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1164 transitions. [2021-04-28 14:42:17,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 105.81818181818181) internal successors, (1164), 11 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:17,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:17,774 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:17,774 INFO L185 Difference]: Start difference. First operand has 283 places, 1254 transitions, 33174 flow. Second operand 11 states and 1164 transitions. [2021-04-28 14:42:17,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 1290 transitions, 36370 flow [2021-04-28 14:42:20,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 1290 transitions, 35681 flow, removed 46 selfloop flow, removed 18 redundant places. [2021-04-28 14:42:21,188 INFO L241 Difference]: Finished difference. Result has 277 places, 1259 transitions, 33179 flow [2021-04-28 14:42:21,189 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=32485, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=33179, PETRI_PLACES=277, PETRI_TRANSITIONS=1259} [2021-04-28 14:42:21,189 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 203 predicate places. [2021-04-28 14:42:21,189 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:21,189 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 1259 transitions, 33179 flow [2021-04-28 14:42:21,189 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 1259 transitions, 33179 flow [2021-04-28 14:42:21,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 1259 transitions, 33179 flow [2021-04-28 14:42:22,658 INFO L129 PetriNetUnfolder]: 3341/7486 cut-off events. [2021-04-28 14:42:22,658 INFO L130 PetriNetUnfolder]: For 101927/101963 co-relation queries the response was YES. [2021-04-28 14:42:22,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75770 conditions, 7486 events. 3341/7486 cut-off events. For 101927/101963 co-relation queries the response was YES. Maximal size of possible extension queue 1278. Compared 78327 event pairs, 0 based on Foata normal form. 0/2312 useless extension candidates. Maximal degree in co-relation 75670. Up to 3801 conditions per place. [2021-04-28 14:42:22,835 INFO L146 LiptonReduction]: Number of co-enabled transitions 13042 [2021-04-28 14:42:23,354 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:23,355 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:23,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2166 [2021-04-28 14:42:23,355 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 1259 transitions, 33179 flow [2021-04-28 14:42:23,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:23,356 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:23,356 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:23,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-04-28 14:42:23,557 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:23,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1975692920, now seen corresponding path program 1 times [2021-04-28 14:42:23,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:23,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034336624] [2021-04-28 14:42:23,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:23,581 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:23,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,589 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:42:23,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:23,597 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-04-28 14:42:23,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,606 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:23,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,617 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:42:23,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:23,628 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-04-28 14:42:23,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:23,641 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:23,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:23,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034336624] [2021-04-28 14:42:23,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784248594] [2021-04-28 14:42:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:23,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:42:23,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:23,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:23,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:23,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:23,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:23,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:23,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:23,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:23,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:23,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:23,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:23,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:42:23,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:23,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:42:23,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,817 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:42:23,818 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:42:23,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:42:23,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:42:23,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:42:23,840 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-04-28 14:42:23,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:42:23,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:42:23,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:42:23,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:42:23,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:42:23,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:42:23,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:23,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-28 14:42:23,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:23,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-28 14:42:23,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 14:42:23,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:42:23,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:23,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:42:23,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:23,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:23,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:42:23,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212081323] [2021-04-28 14:42:23,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:42:23,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:23,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:42:23,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:42:23,938 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:23,939 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 1259 transitions, 33179 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:23,939 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:23,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:23,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:27,593 INFO L129 PetriNetUnfolder]: 3389/7603 cut-off events. [2021-04-28 14:42:27,593 INFO L130 PetriNetUnfolder]: For 117130/117196 co-relation queries the response was YES. [2021-04-28 14:42:27,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82441 conditions, 7603 events. 3389/7603 cut-off events. For 117130/117196 co-relation queries the response was YES. Maximal size of possible extension queue 1260. Compared 78197 event pairs, 0 based on Foata normal form. 22/2364 useless extension candidates. Maximal degree in co-relation 82339. Up to 4563 conditions per place. [2021-04-28 14:42:27,710 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 893 selfloop transitions, 404 changer transitions 6/1323 dead transitions. [2021-04-28 14:42:27,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1323 transitions, 37071 flow [2021-04-28 14:42:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-28 14:42:27,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-04-28 14:42:27,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1903 transitions. [2021-04-28 14:42:27,712 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5777170613236187 [2021-04-28 14:42:27,712 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1903 transitions. [2021-04-28 14:42:27,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1903 transitions. [2021-04-28 14:42:27,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:27,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1903 transitions. [2021-04-28 14:42:27,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 105.72222222222223) internal successors, (1903), 18 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:27,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 183.0) internal successors, (3477), 19 states have internal predecessors, (3477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:27,718 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 183.0) internal successors, (3477), 19 states have internal predecessors, (3477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:27,718 INFO L185 Difference]: Start difference. First operand has 277 places, 1259 transitions, 33179 flow. Second operand 18 states and 1903 transitions. [2021-04-28 14:42:27,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1323 transitions, 37071 flow [2021-04-28 14:42:30,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 1323 transitions, 36831 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-04-28 14:42:30,985 INFO L241 Difference]: Finished difference. Result has 287 places, 1273 transitions, 34510 flow [2021-04-28 14:42:30,986 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=32939, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=391, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=860, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=34510, PETRI_PLACES=287, PETRI_TRANSITIONS=1273} [2021-04-28 14:42:30,986 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 213 predicate places. [2021-04-28 14:42:30,986 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:30,986 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 1273 transitions, 34510 flow [2021-04-28 14:42:30,986 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 1273 transitions, 34510 flow [2021-04-28 14:42:31,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 287 places, 1273 transitions, 34510 flow [2021-04-28 14:42:32,528 INFO L129 PetriNetUnfolder]: 3365/7571 cut-off events. [2021-04-28 14:42:32,529 INFO L130 PetriNetUnfolder]: For 107661/107745 co-relation queries the response was YES. [2021-04-28 14:42:32,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78272 conditions, 7571 events. 3365/7571 cut-off events. For 107661/107745 co-relation queries the response was YES. Maximal size of possible extension queue 1357. Compared 79327 event pairs, 0 based on Foata normal form. 0/2329 useless extension candidates. Maximal degree in co-relation 78171. Up to 3837 conditions per place. [2021-04-28 14:42:32,901 INFO L146 LiptonReduction]: Number of co-enabled transitions 13170 [2021-04-28 14:42:33,433 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:33,433 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:33,433 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2447 [2021-04-28 14:42:33,434 INFO L480 AbstractCegarLoop]: Abstraction has has 287 places, 1273 transitions, 34510 flow [2021-04-28 14:42:33,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:33,434 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:33,434 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:33,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-04-28 14:42:33,639 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:33,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:33,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1918950984, now seen corresponding path program 3 times [2021-04-28 14:42:33,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:33,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406815269] [2021-04-28 14:42:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:33,678 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:33,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,685 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:42:33,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,694 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:33,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,705 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:42:33,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,718 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:42:33,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,731 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:42:33,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,745 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:33,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:33,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406815269] [2021-04-28 14:42:33,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338093788] [2021-04-28 14:42:33,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:33,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-04-28 14:42:33,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:33,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:42:33,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:33,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:33,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:33,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:33,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:33,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:42:33,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:33,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:42:33,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:33,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:33,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:33,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:33,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:33,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:33,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:33,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:33,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:33,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:33,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:33,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:33,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:33,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:33,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:33,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:42:33,984 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:42:33,989 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:42:33,990 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:42:33,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:34,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:34,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:42:34,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113351777] [2021-04-28 14:42:34,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:42:34,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:34,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:42:34,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:42:34,004 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:34,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 1273 transitions, 34510 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:34,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:34,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:34,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:38,686 INFO L129 PetriNetUnfolder]: 3829/8505 cut-off events. [2021-04-28 14:42:38,687 INFO L130 PetriNetUnfolder]: For 174414/174480 co-relation queries the response was YES. [2021-04-28 14:42:38,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95560 conditions, 8505 events. 3829/8505 cut-off events. For 174414/174480 co-relation queries the response was YES. Maximal size of possible extension queue 1360. Compared 87973 event pairs, 0 based on Foata normal form. 54/2663 useless extension candidates. Maximal degree in co-relation 95457. Up to 4485 conditions per place. [2021-04-28 14:42:38,818 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 448 selfloop transitions, 970 changer transitions 3/1441 dead transitions. [2021-04-28 14:42:38,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1441 transitions, 42504 flow [2021-04-28 14:42:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-28 14:42:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-04-28 14:42:38,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2236 transitions. [2021-04-28 14:42:38,822 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5818371064272704 [2021-04-28 14:42:38,822 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2236 transitions. [2021-04-28 14:42:38,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2236 transitions. [2021-04-28 14:42:38,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:38,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2236 transitions. [2021-04-28 14:42:38,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 106.47619047619048) internal successors, (2236), 21 states have internal predecessors, (2236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:38,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 183.0) internal successors, (4026), 22 states have internal predecessors, (4026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:38,830 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 183.0) internal successors, (4026), 22 states have internal predecessors, (4026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:38,830 INFO L185 Difference]: Start difference. First operand has 287 places, 1273 transitions, 34510 flow. Second operand 21 states and 2236 transitions. [2021-04-28 14:42:38,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1441 transitions, 42504 flow [2021-04-28 14:42:43,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 1441 transitions, 42083 flow, removed 62 selfloop flow, removed 15 redundant places. [2021-04-28 14:42:43,620 INFO L241 Difference]: Finished difference. Result has 296 places, 1426 transitions, 42038 flow [2021-04-28 14:42:43,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=34097, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=830, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=42038, PETRI_PLACES=296, PETRI_TRANSITIONS=1426} [2021-04-28 14:42:43,621 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 222 predicate places. [2021-04-28 14:42:43,621 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:43,621 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 296 places, 1426 transitions, 42038 flow [2021-04-28 14:42:43,621 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 296 places, 1426 transitions, 42038 flow [2021-04-28 14:42:43,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 296 places, 1426 transitions, 42038 flow [2021-04-28 14:42:45,669 INFO L129 PetriNetUnfolder]: 3817/8457 cut-off events. [2021-04-28 14:42:45,669 INFO L130 PetriNetUnfolder]: For 123045/123081 co-relation queries the response was YES. [2021-04-28 14:42:46,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95998 conditions, 8457 events. 3817/8457 cut-off events. For 123045/123081 co-relation queries the response was YES. Maximal size of possible extension queue 1439. Compared 88907 event pairs, 0 based on Foata normal form. 0/2601 useless extension candidates. Maximal degree in co-relation 95894. Up to 4465 conditions per place. [2021-04-28 14:42:46,163 INFO L146 LiptonReduction]: Number of co-enabled transitions 14602 [2021-04-28 14:42:47,098 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:42:47,099 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:42:47,099 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3478 [2021-04-28 14:42:47,099 INFO L480 AbstractCegarLoop]: Abstraction has has 296 places, 1426 transitions, 42038 flow [2021-04-28 14:42:47,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:47,100 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:42:47,100 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:42:47,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:47,315 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:42:47,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:42:47,315 INFO L82 PathProgramCache]: Analyzing trace with hash 629122199, now seen corresponding path program 2 times [2021-04-28 14:42:47,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:42:47,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431852481] [2021-04-28 14:42:47,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:42:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:42:47,336 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:42:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,342 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:42:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,353 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:42:47,353 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:42:47,371 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-04-28 14:42:47,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:47,382 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:42:47,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:47,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,406 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:42:47,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:47,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431852481] [2021-04-28 14:42:47,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910408665] [2021-04-28 14:42:47,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:42:47,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:42:47,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:42:47,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:42:47,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:42:47,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:42:47,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:47,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:47,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:42:47,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:42:47,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:42:47,541 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:42:47,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:42:47,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:42:47,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:47,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:47,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:47,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:47,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:47,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:47,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:47,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:47,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:47,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:42:47,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:47,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:47,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:42:47,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:42:47,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:47,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:42:47,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:47,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:47,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:42:47,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:42:47,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,638 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:42:47,638 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:42:47,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:42:47,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:42:47,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:42:47,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:42:47,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:42:47,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:42:47,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:42:47,679 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:42:47,680 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:42:47,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:42:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:42:47,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:42:47,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:42:47,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768118219] [2021-04-28 14:42:47,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:42:47,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:42:47,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:42:47,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:42:47,707 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:42:47,708 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 1426 transitions, 42038 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:47,708 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:42:47,708 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:42:47,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:42:52,942 INFO L129 PetriNetUnfolder]: 3865/8637 cut-off events. [2021-04-28 14:42:52,943 INFO L130 PetriNetUnfolder]: For 138909/138975 co-relation queries the response was YES. [2021-04-28 14:42:53,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103536 conditions, 8637 events. 3865/8637 cut-off events. For 138909/138975 co-relation queries the response was YES. Maximal size of possible extension queue 1399. Compared 90052 event pairs, 0 based on Foata normal form. 22/2665 useless extension candidates. Maximal degree in co-relation 103430. Up to 5628 conditions per place. [2021-04-28 14:42:53,220 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1240 selfloop transitions, 297 changer transitions 9/1566 dead transitions. [2021-04-28 14:42:53,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 1566 transitions, 48014 flow [2021-04-28 14:42:53,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:42:53,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:42:53,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1683 transitions. [2021-04-28 14:42:53,224 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5747950819672131 [2021-04-28 14:42:53,224 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1683 transitions. [2021-04-28 14:42:53,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1683 transitions. [2021-04-28 14:42:53,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:42:53,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1683 transitions. [2021-04-28 14:42:53,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.1875) internal successors, (1683), 16 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:53,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:53,231 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:42:53,231 INFO L185 Difference]: Start difference. First operand has 296 places, 1426 transitions, 42038 flow. Second operand 16 states and 1683 transitions. [2021-04-28 14:42:53,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 1566 transitions, 48014 flow [2021-04-28 14:42:57,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1566 transitions, 45830 flow, removed 858 selfloop flow, removed 14 redundant places. [2021-04-28 14:42:57,561 INFO L241 Difference]: Finished difference. Result has 300 places, 1441 transitions, 41217 flow [2021-04-28 14:42:57,562 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=40054, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=273, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=41217, PETRI_PLACES=300, PETRI_TRANSITIONS=1441} [2021-04-28 14:42:57,562 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 226 predicate places. [2021-04-28 14:42:57,563 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:42:57,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 300 places, 1441 transitions, 41217 flow [2021-04-28 14:42:57,563 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 300 places, 1441 transitions, 41217 flow [2021-04-28 14:42:57,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 300 places, 1441 transitions, 41217 flow [2021-04-28 14:42:59,959 INFO L129 PetriNetUnfolder]: 3829/8550 cut-off events. [2021-04-28 14:42:59,960 INFO L130 PetriNetUnfolder]: For 119975/120047 co-relation queries the response was YES. [2021-04-28 14:43:00,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93701 conditions, 8550 events. 3829/8550 cut-off events. For 119975/120047 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 90244 event pairs, 0 based on Foata normal form. 0/2627 useless extension candidates. Maximal degree in co-relation 93597. Up to 4349 conditions per place. [2021-04-28 14:43:00,200 INFO L146 LiptonReduction]: Number of co-enabled transitions 14746 [2021-04-28 14:43:00,825 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:43:00,825 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:43:00,825 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3262 [2021-04-28 14:43:00,826 INFO L480 AbstractCegarLoop]: Abstraction has has 300 places, 1441 transitions, 41217 flow [2021-04-28 14:43:00,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:00,826 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:43:00,826 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:43:01,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-04-28 14:43:01,027 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:43:01,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:43:01,028 INFO L82 PathProgramCache]: Analyzing trace with hash -702584811, now seen corresponding path program 1 times [2021-04-28 14:43:01,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:43:01,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199970367] [2021-04-28 14:43:01,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:43:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:01,050 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:01,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,056 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:43:01,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:01,065 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-04-28 14:43:01,065 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 14:43:01,184 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2021-04-28 14:43:01,185 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-04-28 14:43:01,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:01,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:01,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:01,221 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:43:01,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:01,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199970367] [2021-04-28 14:43:01,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900058680] [2021-04-28 14:43:01,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:01,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:43:01,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:43:01,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:01,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:01,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:01,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:01,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:01,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:01,357 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-04-28 14:43:01,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:43:01,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:43:01,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:01,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:01,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:01,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:01,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:01,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:01,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:01,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:01,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:01,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:01,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:01,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:43:01,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:01,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:01,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:01,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:01,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:01,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:01,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:01,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:43:01,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:43:01,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417923626] [2021-04-28 14:43:01,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:43:01,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:43:01,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:43:01,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:43:01,510 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:43:01,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 1441 transitions, 41217 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:01,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:43:01,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:43:01,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:43:06,838 INFO L129 PetriNetUnfolder]: 3909/8722 cut-off events. [2021-04-28 14:43:06,838 INFO L130 PetriNetUnfolder]: For 145773/145829 co-relation queries the response was YES. [2021-04-28 14:43:06,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101963 conditions, 8722 events. 3909/8722 cut-off events. For 145773/145829 co-relation queries the response was YES. Maximal size of possible extension queue 1413. Compared 91033 event pairs, 0 based on Foata normal form. 18/2689 useless extension candidates. Maximal degree in co-relation 101857. Up to 5716 conditions per place. [2021-04-28 14:43:06,968 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1256 selfloop transitions, 298 changer transitions 3/1577 dead transitions. [2021-04-28 14:43:06,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1577 transitions, 47071 flow [2021-04-28 14:43:06,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-28 14:43:06,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-04-28 14:43:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1680 transitions. [2021-04-28 14:43:06,972 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5737704918032787 [2021-04-28 14:43:06,972 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1680 transitions. [2021-04-28 14:43:06,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1680 transitions. [2021-04-28 14:43:06,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:43:06,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1680 transitions. [2021-04-28 14:43:06,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:06,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:06,978 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:06,978 INFO L185 Difference]: Start difference. First operand has 300 places, 1441 transitions, 41217 flow. Second operand 16 states and 1680 transitions. [2021-04-28 14:43:06,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1577 transitions, 47071 flow [2021-04-28 14:43:10,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 1577 transitions, 46659 flow, removed 25 selfloop flow, removed 13 redundant places. [2021-04-28 14:43:10,448 INFO L241 Difference]: Finished difference. Result has 305 places, 1474 transitions, 42773 flow [2021-04-28 14:43:10,450 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=40825, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=42773, PETRI_PLACES=305, PETRI_TRANSITIONS=1474} [2021-04-28 14:43:10,450 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 231 predicate places. [2021-04-28 14:43:10,450 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:43:10,450 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 305 places, 1474 transitions, 42773 flow [2021-04-28 14:43:10,450 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 305 places, 1474 transitions, 42773 flow [2021-04-28 14:43:10,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 305 places, 1474 transitions, 42773 flow [2021-04-28 14:43:13,015 INFO L129 PetriNetUnfolder]: 3897/8727 cut-off events. [2021-04-28 14:43:13,016 INFO L130 PetriNetUnfolder]: For 128147/128201 co-relation queries the response was YES. [2021-04-28 14:43:13,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96348 conditions, 8727 events. 3897/8727 cut-off events. For 128147/128201 co-relation queries the response was YES. Maximal size of possible extension queue 1496. Compared 92954 event pairs, 0 based on Foata normal form. 0/2671 useless extension candidates. Maximal degree in co-relation 96241. Up to 4437 conditions per place. [2021-04-28 14:43:13,236 INFO L146 LiptonReduction]: Number of co-enabled transitions 15042 [2021-04-28 14:43:14,316 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:43:14,316 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:43:14,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3866 [2021-04-28 14:43:14,317 INFO L480 AbstractCegarLoop]: Abstraction has has 305 places, 1474 transitions, 42773 flow [2021-04-28 14:43:14,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:14,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:43:14,317 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:43:14,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:14,518 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:43:14,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:43:14,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1977242331, now seen corresponding path program 1 times [2021-04-28 14:43:14,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:43:14,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800343732] [2021-04-28 14:43:14,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:43:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:14,543 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:14,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,551 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:43:14,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:14,558 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-04-28 14:43:14,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,567 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:43:14,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,581 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:43:14,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:14,594 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:43:14,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,610 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:14,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:14,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800343732] [2021-04-28 14:43:14,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556866597] [2021-04-28 14:43:14,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:14,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:43:14,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:43:14,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:14,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:14,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:14,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:14,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:14,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:14,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:14,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:14,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:14,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:14,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:14,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:14,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:14,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,787 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:43:14,787 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:43:14,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:43:14,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:43:14,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:14,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:43:14,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:14,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:14,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:14,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:43:14,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:14,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-28 14:43:14,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:14,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:14,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:43:14,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-04-28 14:43:14,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:43:14,867 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-04-28 14:43:14,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,870 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:43:14,873 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,878 INFO L147 QuantifierPusher]: treesize reduction -4, result has 107.1 percent of original size 60 [2021-04-28 14:43:14,879 INFO L147 QuantifierPusher]: treesize reduction -4, result has 107.1 percent of original size 60 [2021-04-28 14:43:14,880 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:43:14,882 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:14,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:14,884 INFO L142 QuantifierPusher]: treesize reduction -4, result has 105.7 percent of original size [2021-04-28 14:43:14,930 INFO L147 QuantifierPusher]: treesize reduction 17, result has 99.4 percent of original size 2624 [2021-04-28 14:43:14,943 INFO L147 QuantifierPusher]: treesize reduction 17, result has 99.4 percent of original size 2624 [2021-04-28 14:43:14,956 INFO L142 QuantifierPusher]: treesize reduction 17, result has 99.4 percent of original size [2021-04-28 14:43:14,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2624 [2021-04-28 14:43:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:15,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:43:15,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:43:15,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300518575] [2021-04-28 14:43:15,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:43:15,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:43:15,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:43:15,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:43:15,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:43:15,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 1474 transitions, 42773 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:15,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:43:15,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:43:15,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:43:21,222 INFO L129 PetriNetUnfolder]: 4425/9896 cut-off events. [2021-04-28 14:43:21,222 INFO L130 PetriNetUnfolder]: For 212998/213064 co-relation queries the response was YES. [2021-04-28 14:43:21,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118483 conditions, 9896 events. 4425/9896 cut-off events. For 212998/213064 co-relation queries the response was YES. Maximal size of possible extension queue 1584. Compared 105615 event pairs, 0 based on Foata normal form. 54/3072 useless extension candidates. Maximal degree in co-relation 118374. Up to 5269 conditions per place. [2021-04-28 14:43:21,573 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 689 selfloop transitions, 940 changer transitions 6/1655 dead transitions. [2021-04-28 14:43:21,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 1655 transitions, 52661 flow [2021-04-28 14:43:21,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-28 14:43:21,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-04-28 14:43:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2239 transitions. [2021-04-28 14:43:21,578 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5826177465521728 [2021-04-28 14:43:21,578 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2239 transitions. [2021-04-28 14:43:21,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2239 transitions. [2021-04-28 14:43:21,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:43:21,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2239 transitions. [2021-04-28 14:43:21,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 106.61904761904762) internal successors, (2239), 21 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:21,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 183.0) internal successors, (4026), 22 states have internal predecessors, (4026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:21,588 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 183.0) internal successors, (4026), 22 states have internal predecessors, (4026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:21,588 INFO L185 Difference]: Start difference. First operand has 305 places, 1474 transitions, 42773 flow. Second operand 21 states and 2239 transitions. [2021-04-28 14:43:21,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 1655 transitions, 52661 flow [2021-04-28 14:43:28,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 1655 transitions, 52229 flow, removed 47 selfloop flow, removed 13 redundant places. [2021-04-28 14:43:29,046 INFO L241 Difference]: Finished difference. Result has 320 places, 1633 transitions, 51692 flow [2021-04-28 14:43:29,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=42357, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=802, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=51692, PETRI_PLACES=320, PETRI_TRANSITIONS=1633} [2021-04-28 14:43:29,048 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 246 predicate places. [2021-04-28 14:43:29,048 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:43:29,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 320 places, 1633 transitions, 51692 flow [2021-04-28 14:43:29,048 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 320 places, 1633 transitions, 51692 flow [2021-04-28 14:43:29,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 320 places, 1633 transitions, 51692 flow [2021-04-28 14:43:32,137 INFO L129 PetriNetUnfolder]: 4401/9807 cut-off events. [2021-04-28 14:43:32,137 INFO L130 PetriNetUnfolder]: For 157326/157362 co-relation queries the response was YES. [2021-04-28 14:43:32,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117186 conditions, 9807 events. 4401/9807 cut-off events. For 157326/157362 co-relation queries the response was YES. Maximal size of possible extension queue 1601. Compared 105775 event pairs, 0 based on Foata normal form. 0/3005 useless extension candidates. Maximal degree in co-relation 117071. Up to 5229 conditions per place. [2021-04-28 14:43:32,358 INFO L146 LiptonReduction]: Number of co-enabled transitions 16540 [2021-04-28 14:43:33,251 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:43:33,251 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:43:33,251 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4203 [2021-04-28 14:43:33,251 INFO L480 AbstractCegarLoop]: Abstraction has has 320 places, 1633 transitions, 51692 flow [2021-04-28 14:43:33,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:33,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:43:33,252 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:43:33,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:33,453 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:43:33,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:43:33,453 INFO L82 PathProgramCache]: Analyzing trace with hash 588709443, now seen corresponding path program 1 times [2021-04-28 14:43:33,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:43:33,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500519830] [2021-04-28 14:43:33,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:43:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:33,477 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,483 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:43:33,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:33,491 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:43:33,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:33,500 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-04-28 14:43:33,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:33,512 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-28 14:43:33,513 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-04-28 14:43:33,536 INFO L142 QuantifierPusher]: treesize reduction 6, result has 70.0 percent of original size [2021-04-28 14:43:33,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,548 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:43:33,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:33,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500519830] [2021-04-28 14:43:33,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255220214] [2021-04-28 14:43:33,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:33,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:43:33,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:43:33,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:33,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:33,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:33,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:33,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:33,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:33,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:33,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:33,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:33,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:33,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:33,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:33,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:33,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:33,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:33,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:33,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:33,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:33,737 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:43:33,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:43:33,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:43:33,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:33,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:33,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:33,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:33,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:33,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:33,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:33,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:33,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:33,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:43:33,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:33,814 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:43:33,815 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:43:33,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:33,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:33,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:43:33,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:43:33,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137944869] [2021-04-28 14:43:33,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:43:33,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:43:33,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:43:33,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:43:33,841 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:43:33,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 1633 transitions, 51692 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:33,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:43:33,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:43:33,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:43:40,582 INFO L129 PetriNetUnfolder]: 4417/9936 cut-off events. [2021-04-28 14:43:40,582 INFO L130 PetriNetUnfolder]: For 183643/183699 co-relation queries the response was YES. [2021-04-28 14:43:40,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125001 conditions, 9936 events. 4417/9936 cut-off events. For 183643/183699 co-relation queries the response was YES. Maximal size of possible extension queue 1614. Compared 106725 event pairs, 0 based on Foata normal form. 18/3051 useless extension candidates. Maximal degree in co-relation 124884. Up to 6611 conditions per place. [2021-04-28 14:43:40,795 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1409 selfloop transitions, 225 changer transitions 3/1657 dead transitions. [2021-04-28 14:43:40,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1657 transitions, 55606 flow [2021-04-28 14:43:40,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-28 14:43:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-28 14:43:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1272 transitions. [2021-04-28 14:43:40,798 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5792349726775956 [2021-04-28 14:43:40,798 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1272 transitions. [2021-04-28 14:43:40,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1272 transitions. [2021-04-28 14:43:40,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:43:40,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1272 transitions. [2021-04-28 14:43:40,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:40,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:40,804 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:40,804 INFO L185 Difference]: Start difference. First operand has 320 places, 1633 transitions, 51692 flow. Second operand 12 states and 1272 transitions. [2021-04-28 14:43:40,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1657 transitions, 55606 flow [2021-04-28 14:43:49,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 1657 transitions, 54026 flow, removed 662 selfloop flow, removed 11 redundant places. [2021-04-28 14:43:49,161 INFO L241 Difference]: Finished difference. Result has 321 places, 1634 transitions, 50913 flow [2021-04-28 14:43:49,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=50120, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=50913, PETRI_PLACES=321, PETRI_TRANSITIONS=1634} [2021-04-28 14:43:49,163 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 247 predicate places. [2021-04-28 14:43:49,163 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:43:49,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 321 places, 1634 transitions, 50913 flow [2021-04-28 14:43:49,163 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 321 places, 1634 transitions, 50913 flow [2021-04-28 14:43:49,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 321 places, 1634 transitions, 50913 flow [2021-04-28 14:43:52,008 INFO L129 PetriNetUnfolder]: 4405/9843 cut-off events. [2021-04-28 14:43:52,008 INFO L130 PetriNetUnfolder]: For 158637/158757 co-relation queries the response was YES. [2021-04-28 14:43:52,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115701 conditions, 9843 events. 4405/9843 cut-off events. For 158637/158757 co-relation queries the response was YES. Maximal size of possible extension queue 1619. Compared 106265 event pairs, 0 based on Foata normal form. 0/3009 useless extension candidates. Maximal degree in co-relation 115585. Up to 5169 conditions per place. [2021-04-28 14:43:52,481 INFO L146 LiptonReduction]: Number of co-enabled transitions 16548 [2021-04-28 14:43:53,275 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:43:53,275 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:43:53,275 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4112 [2021-04-28 14:43:53,276 INFO L480 AbstractCegarLoop]: Abstraction has has 321 places, 1634 transitions, 50913 flow [2021-04-28 14:43:53,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:53,276 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:43:53,276 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:43:53,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:53,488 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:43:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:43:53,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1999021078, now seen corresponding path program 2 times [2021-04-28 14:43:53,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:43:53,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293571777] [2021-04-28 14:43:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:43:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:43:53,509 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:43:53,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,515 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:43:53,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:53,523 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:43:53,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,532 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:43:53,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,542 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-04-28 14:43:53,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,554 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-04-28 14:43:53,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:43:53,572 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:43:53,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:53,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293571777] [2021-04-28 14:43:53,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692781400] [2021-04-28 14:43:53,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:43:53,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:43:53,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:43:53,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2021-04-28 14:43:53,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:43:53,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:53,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:53,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:53,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:53,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:53,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:53,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:53,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:43:53,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:53,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:53,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:53,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:43:53,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:53,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:53,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:53,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:53,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:53,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:53,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:53,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:53,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:43:53,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:43:53,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:43:53,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:43:53,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:53,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:43:53,696 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-04-28 14:43:53,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:43:53,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-28 14:43:53,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:53,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:53,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:53,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:43:53,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,718 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-04-28 14:43:53,719 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-04-28 14:43:53,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:43:53,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:43:53,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:43:53,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:43:53,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-04-28 14:43:53,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360224206] [2021-04-28 14:43:53,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-28 14:43:53,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:43:53,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-28 14:43:53,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-04-28 14:43:53,736 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:43:53,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 1634 transitions, 50913 flow. Second operand has 11 states, 11 states have (on average 100.0909090909091) internal successors, (1101), 11 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:43:53,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:43:53,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:43:53,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:44:01,134 INFO L129 PetriNetUnfolder]: 4421/9961 cut-off events. [2021-04-28 14:44:01,135 INFO L130 PetriNetUnfolder]: For 190074/190140 co-relation queries the response was YES. [2021-04-28 14:44:01,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123529 conditions, 9961 events. 4421/9961 cut-off events. For 190074/190140 co-relation queries the response was YES. Maximal size of possible extension queue 1622. Compared 106989 event pairs, 0 based on Foata normal form. 22/3064 useless extension candidates. Maximal degree in co-relation 123411. Up to 6591 conditions per place. [2021-04-28 14:44:01,302 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1392 selfloop transitions, 251 changer transitions 3/1666 dead transitions. [2021-04-28 14:44:01,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 1666 transitions, 54901 flow [2021-04-28 14:44:01,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-28 14:44:01,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-28 14:44:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1380 transitions. [2021-04-28 14:44:01,304 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5800756620428752 [2021-04-28 14:44:01,304 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1380 transitions. [2021-04-28 14:44:01,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1380 transitions. [2021-04-28 14:44:01,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:44:01,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1380 transitions. [2021-04-28 14:44:01,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.15384615384616) internal successors, (1380), 13 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:01,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:01,308 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 183.0) internal successors, (2562), 14 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:01,308 INFO L185 Difference]: Start difference. First operand has 321 places, 1634 transitions, 50913 flow. Second operand 13 states and 1380 transitions. [2021-04-28 14:44:01,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 1666 transitions, 54901 flow [2021-04-28 14:44:08,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 1666 transitions, 54623 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-04-28 14:44:08,446 INFO L241 Difference]: Finished difference. Result has 325 places, 1635 transitions, 51532 flow [2021-04-28 14:44:08,447 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=50635, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=51532, PETRI_PLACES=325, PETRI_TRANSITIONS=1635} [2021-04-28 14:44:08,447 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 251 predicate places. [2021-04-28 14:44:08,447 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:44:08,447 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 325 places, 1635 transitions, 51532 flow [2021-04-28 14:44:08,448 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 325 places, 1635 transitions, 51532 flow [2021-04-28 14:44:08,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 1635 transitions, 51532 flow [2021-04-28 14:44:11,296 INFO L129 PetriNetUnfolder]: 4409/9863 cut-off events. [2021-04-28 14:44:11,296 INFO L130 PetriNetUnfolder]: For 169511/169595 co-relation queries the response was YES. [2021-04-28 14:44:11,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117040 conditions, 9863 events. 4409/9863 cut-off events. For 169511/169595 co-relation queries the response was YES. Maximal size of possible extension queue 1659. Compared 107316 event pairs, 0 based on Foata normal form. 0/3019 useless extension candidates. Maximal degree in co-relation 116923. Up to 5177 conditions per place. [2021-04-28 14:44:11,873 INFO L146 LiptonReduction]: Number of co-enabled transitions 16556 [2021-04-28 14:44:12,619 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:44:12,619 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:44:12,619 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4172 [2021-04-28 14:44:12,620 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 1635 transitions, 51532 flow [2021-04-28 14:44:12,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 100.0909090909091) internal successors, (1101), 11 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:12,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:44:12,620 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:44:12,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-04-28 14:44:12,821 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:44:12,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:44:12,822 INFO L82 PathProgramCache]: Analyzing trace with hash 146455581, now seen corresponding path program 1 times [2021-04-28 14:44:12,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:44:12,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529506379] [2021-04-28 14:44:12,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:44:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:44:12,841 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:44:12,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,847 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:44:12,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:12,854 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:44:12,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,864 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 14:44:12,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,875 INFO L142 QuantifierPusher]: treesize reduction 14, result has 44.0 percent of original size [2021-04-28 14:44:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:12,887 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:44:12,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,900 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:44:12,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:44:12,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529506379] [2021-04-28 14:44:12,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735096990] [2021-04-28 14:44:12,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:44:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:44:12,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:44:12,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:44:12,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:12,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:12,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:12,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:12,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:12,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:13,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:13,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:13,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:13,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:13,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:13,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:44:13,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:44:13,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:44:13,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:44:13,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:44:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:44:13,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:44:13,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:44:13,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:13,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:13,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:44:13,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:13,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:44:13,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,116 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:44:13,116 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:44:13,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:44:13,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:44:13,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-28 14:44:13,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-04-28 14:44:13,154 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-04-28 14:44:13,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,158 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:44:13,159 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,164 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-04-28 14:44:13,165 INFO L147 QuantifierPusher]: treesize reduction -7, result has 113.2 percent of original size 60 [2021-04-28 14:44:13,166 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:44:13,167 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:13,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:13,168 INFO L142 QuantifierPusher]: treesize reduction -7, result has 110.4 percent of original size [2021-04-28 14:44:13,199 INFO L147 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size 528 [2021-04-28 14:44:13,208 INFO L147 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size 528 [2021-04-28 14:44:13,213 INFO L142 QuantifierPusher]: treesize reduction 376, result has 58.4 percent of original size [2021-04-28 14:44:13,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 528 [2021-04-28 14:44:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:44:13,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:44:13,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:44:13,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105263213] [2021-04-28 14:44:13,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:44:13,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:44:13,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:44:13,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:44:13,258 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:44:13,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 1635 transitions, 51532 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:13,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:44:13,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:44:13,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:44:21,204 INFO L129 PetriNetUnfolder]: 4713/10545 cut-off events. [2021-04-28 14:44:21,204 INFO L130 PetriNetUnfolder]: For 262908/262974 co-relation queries the response was YES. [2021-04-28 14:44:21,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135632 conditions, 10545 events. 4713/10545 cut-off events. For 262908/262974 co-relation queries the response was YES. Maximal size of possible extension queue 1686. Compared 113165 event pairs, 0 based on Foata normal form. 54/3280 useless extension candidates. Maximal degree in co-relation 135513. Up to 6215 conditions per place. [2021-04-28 14:44:21,431 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1136 selfloop transitions, 594 changer transitions 0/1750 dead transitions. [2021-04-28 14:44:21,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 1750 transitions, 60258 flow [2021-04-28 14:44:21,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-28 14:44:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-04-28 14:44:21,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1809 transitions. [2021-04-28 14:44:21,434 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5814850530376084 [2021-04-28 14:44:21,434 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1809 transitions. [2021-04-28 14:44:21,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1809 transitions. [2021-04-28 14:44:21,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:44:21,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1809 transitions. [2021-04-28 14:44:21,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 106.41176470588235) internal successors, (1809), 17 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:21,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:21,439 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:21,440 INFO L185 Difference]: Start difference. First operand has 325 places, 1635 transitions, 51532 flow. Second operand 17 states and 1809 transitions. [2021-04-28 14:44:21,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 1750 transitions, 60258 flow [2021-04-28 14:44:29,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 1750 transitions, 59843 flow, removed 25 selfloop flow, removed 11 redundant places. [2021-04-28 14:44:29,487 INFO L241 Difference]: Finished difference. Result has 334 places, 1734 transitions, 57951 flow [2021-04-28 14:44:29,489 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=51189, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=508, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=57951, PETRI_PLACES=334, PETRI_TRANSITIONS=1734} [2021-04-28 14:44:29,489 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 260 predicate places. [2021-04-28 14:44:29,490 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:44:29,490 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 334 places, 1734 transitions, 57951 flow [2021-04-28 14:44:29,490 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 334 places, 1734 transitions, 57951 flow [2021-04-28 14:44:29,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 334 places, 1734 transitions, 57951 flow [2021-04-28 14:44:33,056 INFO L129 PetriNetUnfolder]: 4713/10459 cut-off events. [2021-04-28 14:44:33,056 INFO L130 PetriNetUnfolder]: For 191532/191568 co-relation queries the response was YES. [2021-04-28 14:44:33,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131396 conditions, 10459 events. 4713/10459 cut-off events. For 191532/191568 co-relation queries the response was YES. Maximal size of possible extension queue 1794. Compared 114235 event pairs, 0 based on Foata normal form. 0/3206 useless extension candidates. Maximal degree in co-relation 131275. Up to 5641 conditions per place. [2021-04-28 14:44:33,331 INFO L146 LiptonReduction]: Number of co-enabled transitions 17490 [2021-04-28 14:44:34,614 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:44:34,614 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:44:34,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5125 [2021-04-28 14:44:34,615 INFO L480 AbstractCegarLoop]: Abstraction has has 334 places, 1734 transitions, 57951 flow [2021-04-28 14:44:34,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:34,616 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:44:34,616 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:44:34,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:44:34,830 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:44:34,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:44:34,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1307168350, now seen corresponding path program 2 times [2021-04-28 14:44:34,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:44:34,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901020196] [2021-04-28 14:44:34,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:44:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:44:34,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:44:34,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:34,857 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:44:34,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:34,864 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-04-28 14:44:34,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:34,874 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-04-28 14:44:34,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:34,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-28 14:44:34,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:34,897 INFO L142 QuantifierPusher]: treesize reduction 13, result has 35.0 percent of original size [2021-04-28 14:44:34,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:34,911 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:44:34,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:44:34,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901020196] [2021-04-28 14:44:34,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177087213] [2021-04-28 14:44:34,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:44:34,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:44:34,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:44:35,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:44:35,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:44:35,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:44:35,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:35,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:35,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:35,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:44:35,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:35,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:44:35,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:35,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:44:35,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:44:35,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:44:35,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:44:35,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:35,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:35,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:35,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:35,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:35,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:35,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:44:35,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:44:35,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:44:35,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:44:35,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:35,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:44:35,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:44:35,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:44:35,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:44:35,156 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-04-28 14:44:35,157 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:44:35,158 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:44:35,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:44:35,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:44:35,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:44:35,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:44:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:44:35,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:44:35,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:44:35,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61054157] [2021-04-28 14:44:35,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:44:35,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:44:35,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:44:35,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:44:35,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:44:35,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 1734 transitions, 57951 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:35,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:44:35,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:44:35,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:44:45,144 INFO L129 PetriNetUnfolder]: 5241/11790 cut-off events. [2021-04-28 14:44:45,144 INFO L130 PetriNetUnfolder]: For 359354/359420 co-relation queries the response was YES. [2021-04-28 14:44:45,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159149 conditions, 11790 events. 5241/11790 cut-off events. For 359354/359420 co-relation queries the response was YES. Maximal size of possible extension queue 1769. Compared 128596 event pairs, 0 based on Foata normal form. 86/3658 useless extension candidates. Maximal degree in co-relation 159026. Up to 6461 conditions per place. [2021-04-28 14:44:45,460 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 652 selfloop transitions, 1247 changer transitions 42/1961 dead transitions. [2021-04-28 14:44:45,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 1961 transitions, 70700 flow [2021-04-28 14:44:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-28 14:44:45,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-04-28 14:44:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2876 transitions. [2021-04-28 14:44:45,463 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5820684072050192 [2021-04-28 14:44:45,463 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2876 transitions. [2021-04-28 14:44:45,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2876 transitions. [2021-04-28 14:44:45,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:44:45,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2876 transitions. [2021-04-28 14:44:45,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 106.51851851851852) internal successors, (2876), 27 states have internal predecessors, (2876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:45,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 183.0) internal successors, (5124), 28 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:45,470 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 183.0) internal successors, (5124), 28 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:44:45,470 INFO L185 Difference]: Start difference. First operand has 334 places, 1734 transitions, 57951 flow. Second operand 27 states and 2876 transitions. [2021-04-28 14:44:45,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 1961 transitions, 70700 flow [2021-04-28 14:44:58,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 1961 transitions, 69481 flow, removed 480 selfloop flow, removed 12 redundant places. [2021-04-28 14:44:58,642 INFO L241 Difference]: Finished difference. Result has 353 places, 1883 transitions, 66613 flow [2021-04-28 14:44:58,643 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=56788, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1734, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1094, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=66613, PETRI_PLACES=353, PETRI_TRANSITIONS=1883} [2021-04-28 14:44:58,643 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 279 predicate places. [2021-04-28 14:44:58,643 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:44:58,644 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 353 places, 1883 transitions, 66613 flow [2021-04-28 14:44:58,644 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 353 places, 1883 transitions, 66613 flow [2021-04-28 14:44:58,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 353 places, 1883 transitions, 66613 flow [2021-04-28 14:45:02,987 INFO L129 PetriNetUnfolder]: 5073/11609 cut-off events. [2021-04-28 14:45:02,987 INFO L130 PetriNetUnfolder]: For 221262/221382 co-relation queries the response was YES. [2021-04-28 14:45:03,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152512 conditions, 11609 events. 5073/11609 cut-off events. For 221262/221382 co-relation queries the response was YES. Maximal size of possible extension queue 1850. Compared 130223 event pairs, 0 based on Foata normal form. 0/3564 useless extension candidates. Maximal degree in co-relation 152387. Up to 6293 conditions per place. [2021-04-28 14:45:03,610 INFO L146 LiptonReduction]: Number of co-enabled transitions 18920 [2021-04-28 14:45:04,604 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:45:04,604 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:45:04,605 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5962 [2021-04-28 14:45:04,605 INFO L480 AbstractCegarLoop]: Abstraction has has 353 places, 1883 transitions, 66613 flow [2021-04-28 14:45:04,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:45:04,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:45:04,605 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:45:04,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:45:04,807 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:45:04,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:45:04,807 INFO L82 PathProgramCache]: Analyzing trace with hash 2050791111, now seen corresponding path program 2 times [2021-04-28 14:45:04,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:45:04,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514354088] [2021-04-28 14:45:04,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:45:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:45:04,844 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:45:04,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,850 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:45:04,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:04,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:04,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:04,868 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-04-28 14:45:04,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:45:04,879 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:45:04,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:04,891 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:45:04,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:45:04,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:45:04,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514354088] [2021-04-28 14:45:04,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288763539] [2021-04-28 14:45:04,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:45:04,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:45:04,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:45:04,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:45:04,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:45:04,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:04,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:04,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:04,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:04,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:04,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:04,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:04,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:04,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:05,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:05,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:05,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:05,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:05,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:05,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:05,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:05,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:05,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:05,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:05,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:05,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:05,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:05,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:05,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:05,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:05,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:05,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:05,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:05,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:45:05,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:45:05,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:45:05,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:45:05,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:45:05,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:45:05,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:45:05,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:05,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:05,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:45:05,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:45:05,137 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 14:45:05,139 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:45:05,139 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:45:05,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:45:05,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:45:05,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:45:05,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:45:05,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83293048] [2021-04-28 14:45:05,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:45:05,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:45:05,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:45:05,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:45:05,152 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:45:05,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 1883 transitions, 66613 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:45:05,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:45:05,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:45:05,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:45:18,111 INFO L129 PetriNetUnfolder]: 5521/12657 cut-off events. [2021-04-28 14:45:18,111 INFO L130 PetriNetUnfolder]: For 329860/329926 co-relation queries the response was YES. [2021-04-28 14:45:18,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177970 conditions, 12657 events. 5521/12657 cut-off events. For 329860/329926 co-relation queries the response was YES. Maximal size of possible extension queue 1892. Compared 141235 event pairs, 0 based on Foata normal form. 54/3928 useless extension candidates. Maximal degree in co-relation 177843. Up to 7029 conditions per place. [2021-04-28 14:45:18,445 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 497 selfloop transitions, 1540 changer transitions 6/2063 dead transitions. [2021-04-28 14:45:18,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 2063 transitions, 78458 flow [2021-04-28 14:45:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-28 14:45:18,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-04-28 14:45:18,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2872 transitions. [2021-04-28 14:45:18,448 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5812588544828982 [2021-04-28 14:45:18,448 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2872 transitions. [2021-04-28 14:45:18,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2872 transitions. [2021-04-28 14:45:18,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:45:18,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2872 transitions. [2021-04-28 14:45:18,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 106.37037037037037) internal successors, (2872), 27 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:45:18,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 183.0) internal successors, (5124), 28 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:45:18,455 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 183.0) internal successors, (5124), 28 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:45:18,455 INFO L185 Difference]: Start difference. First operand has 353 places, 1883 transitions, 66613 flow. Second operand 27 states and 2872 transitions. [2021-04-28 14:45:18,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 2063 transitions, 78458 flow [2021-04-28 14:45:39,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 2063 transitions, 75364 flow, removed 1394 selfloop flow, removed 13 redundant places. [2021-04-28 14:45:39,520 INFO L241 Difference]: Finished difference. Result has 370 places, 2021 transitions, 74984 flow [2021-04-28 14:45:39,522 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=63849, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1883, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=74984, PETRI_PLACES=370, PETRI_TRANSITIONS=2021} [2021-04-28 14:45:39,522 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 296 predicate places. [2021-04-28 14:45:39,522 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:45:39,522 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 2021 transitions, 74984 flow [2021-04-28 14:45:39,522 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 2021 transitions, 74984 flow [2021-04-28 14:45:39,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 2021 transitions, 74984 flow [2021-04-28 14:45:44,912 INFO L129 PetriNetUnfolder]: 5497/12631 cut-off events. [2021-04-28 14:45:44,912 INFO L130 PetriNetUnfolder]: For 249049/249085 co-relation queries the response was YES. [2021-04-28 14:45:45,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173143 conditions, 12631 events. 5497/12631 cut-off events. For 249049/249085 co-relation queries the response was YES. Maximal size of possible extension queue 1995. Compared 143744 event pairs, 0 based on Foata normal form. 0/3873 useless extension candidates. Maximal degree in co-relation 173014. Up to 6813 conditions per place. [2021-04-28 14:45:45,345 INFO L146 LiptonReduction]: Number of co-enabled transitions 20216 [2021-04-28 14:45:46,746 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:45:46,746 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:45:46,746 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7224 [2021-04-28 14:45:46,747 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 2021 transitions, 74984 flow [2021-04-28 14:45:46,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:45:46,747 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:45:46,748 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:45:46,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-04-28 14:45:46,954 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:45:46,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:45:46,954 INFO L82 PathProgramCache]: Analyzing trace with hash 2067436344, now seen corresponding path program 2 times [2021-04-28 14:45:46,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:45:46,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223511405] [2021-04-28 14:45:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:45:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:45:46,974 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:45:46,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:46,982 INFO L142 QuantifierPusher]: treesize reduction 12, result has 42.9 percent of original size [2021-04-28 14:45:46,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:46,990 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-04-28 14:45:46,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:45:46,999 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.1 percent of original size [2021-04-28 14:45:47,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:45:47,011 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-04-28 14:45:47,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:47,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-04-28 14:45:47,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:45:47,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223511405] [2021-04-28 14:45:47,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048432051] [2021-04-28 14:45:47,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:45:47,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:45:47,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:45:47,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2021-04-28 14:45:47,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:45:47,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:45:47,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:45:47,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:45:47,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:47,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:47,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:47,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:47,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:47,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:45:47,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:45:47,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:45:47,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:45:47,201 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-04-28 14:45:47,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:45:47,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 14:45:47,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:45:47,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:45:47,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:45:47,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 14:45:47,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:47,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:45:47,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:45:47,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:45:47,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:45:47,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 14:45:47,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,253 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-04-28 14:45:47,254 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-04-28 14:45:47,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-28 14:45:47,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:45:47,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:45:47,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:45:47,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:45:47,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-04-28 14:45:47,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:45:47,286 INFO L147 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size 13 [2021-04-28 14:45:47,286 INFO L142 QuantifierPusher]: treesize reduction -1, result has 108.3 percent of original size [2021-04-28 14:45:47,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:45:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:45:47,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:45:47,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-04-28 14:45:47,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726505572] [2021-04-28 14:45:47,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-28 14:45:47,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:45:47,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-28 14:45:47,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-04-28 14:45:47,311 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:45:47,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 2021 transitions, 74984 flow. Second operand has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:45:47,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:45:47,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:45:47,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:46:01,073 INFO L129 PetriNetUnfolder]: 5657/12922 cut-off events. [2021-04-28 14:46:01,073 INFO L130 PetriNetUnfolder]: For 280098/280164 co-relation queries the response was YES. [2021-04-28 14:46:01,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187064 conditions, 12922 events. 5657/12922 cut-off events. For 280098/280164 co-relation queries the response was YES. Maximal size of possible extension queue 1948. Compared 144288 event pairs, 0 based on Foata normal form. 22/3965 useless extension candidates. Maximal degree in co-relation 186933. Up to 8181 conditions per place. [2021-04-28 14:46:01,424 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1612 selfloop transitions, 562 changer transitions 3/2197 dead transitions. [2021-04-28 14:46:01,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 2197 transitions, 84258 flow [2021-04-28 14:46:01,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-28 14:46:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-04-28 14:46:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2211 transitions. [2021-04-28 14:46:01,427 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5753317720530835 [2021-04-28 14:46:01,427 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2211 transitions. [2021-04-28 14:46:01,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2211 transitions. [2021-04-28 14:46:01,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:46:01,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2211 transitions. [2021-04-28 14:46:01,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 105.28571428571429) internal successors, (2211), 21 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:46:01,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 183.0) internal successors, (4026), 22 states have internal predecessors, (4026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:46:01,432 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 183.0) internal successors, (4026), 22 states have internal predecessors, (4026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:46:01,432 INFO L185 Difference]: Start difference. First operand has 370 places, 2021 transitions, 74984 flow. Second operand 21 states and 2211 transitions. [2021-04-28 14:46:01,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 2197 transitions, 84258 flow [2021-04-28 14:46:26,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 2197 transitions, 81619 flow, removed 907 selfloop flow, removed 20 redundant places. [2021-04-28 14:46:26,079 INFO L241 Difference]: Finished difference. Result has 372 places, 2062 transitions, 76021 flow [2021-04-28 14:46:26,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=72437, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=518, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=76021, PETRI_PLACES=372, PETRI_TRANSITIONS=2062} [2021-04-28 14:46:26,080 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 298 predicate places. [2021-04-28 14:46:26,081 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:46:26,081 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 372 places, 2062 transitions, 76021 flow [2021-04-28 14:46:26,081 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 372 places, 2062 transitions, 76021 flow [2021-04-28 14:46:26,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 372 places, 2062 transitions, 76021 flow [2021-04-28 14:46:32,079 INFO L129 PetriNetUnfolder]: 5645/12889 cut-off events. [2021-04-28 14:46:32,079 INFO L130 PetriNetUnfolder]: For 258876/258996 co-relation queries the response was YES. [2021-04-28 14:46:32,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175483 conditions, 12889 events. 5645/12889 cut-off events. For 258876/258996 co-relation queries the response was YES. Maximal size of possible extension queue 2068. Compared 146208 event pairs, 0 based on Foata normal form. 0/3932 useless extension candidates. Maximal degree in co-relation 175356. Up to 6641 conditions per place. [2021-04-28 14:46:32,521 INFO L146 LiptonReduction]: Number of co-enabled transitions 20552 [2021-04-28 14:46:35,977 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:46:35,977 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:46:35,978 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9898 [2021-04-28 14:46:35,978 INFO L480 AbstractCegarLoop]: Abstraction has has 372 places, 2062 transitions, 76021 flow [2021-04-28 14:46:35,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 100.0) internal successors, (1600), 16 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:46:35,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:46:35,979 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:46:36,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:46:36,179 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:46:36,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:46:36,180 INFO L82 PathProgramCache]: Analyzing trace with hash 125298058, now seen corresponding path program 2 times [2021-04-28 14:46:36,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:46:36,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612922147] [2021-04-28 14:46:36,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:46:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:46:36,198 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:46:36,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,205 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:46:36,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:46:36,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 14:46:36,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:46:36,233 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-28 14:46:36,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,244 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:46:36,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,257 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:46:36,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:46:36,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612922147] [2021-04-28 14:46:36,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448359557] [2021-04-28 14:46:36,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:46:36,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-04-28 14:46:36,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-04-28 14:46:36,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:46:36,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:46:36,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:46:36,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:46:36,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:46:36,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:46:36,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:46:36,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:46:36,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:46:36,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:46:36,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:46:36,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:46:36,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:46:36,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:46:36,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:46:36,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:46:36,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:46:36,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:46:36,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:46:36,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:46:36,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,465 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:46:36,465 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:46:36,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:46:36,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:46:36,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:46:36,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:46:36,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-04-28 14:46:36,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:46:36,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:46:36,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 14:46:36,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:46:36,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-28 14:46:36,534 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-04-28 14:46:36,535 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-04-28 14:46:36,536 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:46:36,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:46:36,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:46:36,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:46:36,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 14:46:36,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:46:36,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-28 14:46:36,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-04-28 14:46:36,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289618673] [2021-04-28 14:46:36,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-28 14:46:36,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 14:46:36,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-28 14:46:36,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-04-28 14:46:36,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 183 [2021-04-28 14:46:36,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 2062 transitions, 76021 flow. Second operand has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:46:36,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 14:46:36,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 183 [2021-04-28 14:46:36,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 14:46:51,429 INFO L129 PetriNetUnfolder]: 6109/13994 cut-off events. [2021-04-28 14:46:51,429 INFO L130 PetriNetUnfolder]: For 381312/381378 co-relation queries the response was YES. [2021-04-28 14:46:51,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200862 conditions, 13994 events. 6109/13994 cut-off events. For 381312/381378 co-relation queries the response was YES. Maximal size of possible extension queue 2083. Compared 158313 event pairs, 0 based on Foata normal form. 54/4313 useless extension candidates. Maximal degree in co-relation 200733. Up to 7837 conditions per place. [2021-04-28 14:46:51,831 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 1333 selfloop transitions, 885 changer transitions 0/2238 dead transitions. [2021-04-28 14:46:51,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 2238 transitions, 87057 flow [2021-04-28 14:46:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-28 14:46:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-04-28 14:46:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2872 transitions. [2021-04-28 14:46:51,834 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5812588544828982 [2021-04-28 14:46:51,834 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2872 transitions. [2021-04-28 14:46:51,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2872 transitions. [2021-04-28 14:46:51,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 14:46:51,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2872 transitions. [2021-04-28 14:46:51,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 106.37037037037037) internal successors, (2872), 27 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:46:51,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 183.0) internal successors, (5124), 28 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:46:51,840 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 183.0) internal successors, (5124), 28 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:46:51,841 INFO L185 Difference]: Start difference. First operand has 372 places, 2062 transitions, 76021 flow. Second operand 27 states and 2872 transitions. [2021-04-28 14:46:51,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 2238 transitions, 87057 flow [2021-04-28 14:47:13,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 2238 transitions, 86213 flow, removed 93 selfloop flow, removed 15 redundant places. [2021-04-28 14:47:14,047 INFO L241 Difference]: Finished difference. Result has 388 places, 2222 transitions, 84137 flow [2021-04-28 14:47:14,049 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=75209, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=750, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=84137, PETRI_PLACES=388, PETRI_TRANSITIONS=2222} [2021-04-28 14:47:14,049 INFO L343 CegarLoopForPetriNet]: 74 programPoint places, 314 predicate places. [2021-04-28 14:47:14,049 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 14:47:14,049 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 2222 transitions, 84137 flow [2021-04-28 14:47:14,049 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 2222 transitions, 84137 flow [2021-04-28 14:47:14,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 388 places, 2222 transitions, 84137 flow [2021-04-28 14:47:20,860 INFO L129 PetriNetUnfolder]: 6109/13965 cut-off events. [2021-04-28 14:47:20,860 INFO L130 PetriNetUnfolder]: For 279006/279042 co-relation queries the response was YES. [2021-04-28 14:47:21,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195225 conditions, 13965 events. 6109/13965 cut-off events. For 279006/279042 co-relation queries the response was YES. Maximal size of possible extension queue 2242. Compared 160458 event pairs, 0 based on Foata normal form. 0/4253 useless extension candidates. Maximal degree in co-relation 195093. Up to 7297 conditions per place. [2021-04-28 14:47:21,645 INFO L146 LiptonReduction]: Number of co-enabled transitions 22048 [2021-04-28 14:47:23,198 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 14:47:23,199 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 14:47:23,199 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9150 [2021-04-28 14:47:23,199 INFO L480 AbstractCegarLoop]: Abstraction has has 388 places, 2222 transitions, 84137 flow [2021-04-28 14:47:23,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 100.0) internal successors, (1500), 15 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 14:47:23,200 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 14:47:23,200 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 14:47:23,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-04-28 14:47:23,409 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 14:47:23,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 14:47:23,410 INFO L82 PathProgramCache]: Analyzing trace with hash 2115285743, now seen corresponding path program 1 times [2021-04-28 14:47:23,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 14:47:23,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245581152] [2021-04-28 14:47:23,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 14:47:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:47:23,430 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:47:23,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,436 INFO L142 QuantifierPusher]: treesize reduction 2, result has 81.8 percent of original size [2021-04-28 14:47:23,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:47:23,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 14:47:23,465 INFO L142 QuantifierPusher]: treesize reduction 5, result has 64.3 percent of original size [2021-04-28 14:47:23,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,479 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-04-28 14:47:23,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,493 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-04-28 14:47:23,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 14:47:23,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245581152] [2021-04-28 14:47:23,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806730131] [2021-04-28 14:47:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-28 14:47:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 14:47:23,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-04-28 14:47:23,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-28 14:47:23,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 14:47:23,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:47:23,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:47:23,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:47:23,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:47:23,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 14:47:23,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:47:23,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 14:47:23,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:47:23,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:47:23,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:47:23,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:47:23,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:47:23,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 14:47:23,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:47:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:47:23,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 14:47:23,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 14:47:23,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,714 INFO L147 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size 15 [2021-04-28 14:47:23,714 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.1 percent of original size [2021-04-28 14:47:23,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 14:47:23,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:47:23,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:47:23,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-28 14:47:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-04-28 14:47:23,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,908 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size 20 [2021-04-28 14:47:23,909 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.1 percent of original size [2021-04-28 14:47:23,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 14:47:23,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-04-28 14:47:23,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-28 14:47:23,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-28 14:47:23,953 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-04-28 14:47:23,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,969 INFO L147 QuantifierPusher]: treesize reduction -4, result has 113.3 percent of original size 34 [2021-04-28 14:47:23,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,974 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.0 percent of original size [2021-04-28 14:47:23,976 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:47:23,978 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,982 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-04-28 14:47:23,983 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 60 [2021-04-28 14:47:23,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:23,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:23,998 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.7 percent of original size 25 [2021-04-28 14:47:23,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:24,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:24,002 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-04-28 14:47:24,003 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:24,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:24,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:24,092 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:47:24,172 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:47:24,297 INFO L147 QuantifierPusher]: treesize reduction 62, result has 92.8 percent of original size 802 [2021-04-28 14:47:24,302 INFO L147 QuantifierPusher]: treesize reduction 62, result has 92.8 percent of original size 802 [2021-04-28 14:47:24,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:24,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:24,331 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-04-28 14:47:24,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:24,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:24,337 INFO L147 QuantifierPusher]: treesize reduction -2, result has 109.5 percent of original size 23 [2021-04-28 14:47:24,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:24,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:24,346 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-04-28 14:47:24,347 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:24,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-28 14:47:24,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 14:47:24,699 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:47:25,737 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:47:27,064 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:47:28,568 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:47:30,089 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-28 14:47:31,934 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown