/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-wmm/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:46:51,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:46:51,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:46:51,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:46:51,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:46:51,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:46:51,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:46:51,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:46:51,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:46:51,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:46:51,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:46:51,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:46:51,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:46:51,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:46:51,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:46:51,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:46:51,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:46:51,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:46:51,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:46:51,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:46:51,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:46:51,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:46:51,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:46:51,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:46:51,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 23:46:51,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 23:46:51,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 23:46:51,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 23:46:51,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 23:46:51,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 23:46:51,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:46:51,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:46:51,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:46:51,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:46:51,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:46:51,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:46:51,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:46:51,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:46:51,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:46:51,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:46:51,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:46:51,508 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 23:46:51,569 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:46:51,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:46:51,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:46:51,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:46:51,576 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:46:51,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:46:51,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:46:51,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:46:51,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:46:51,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:46:51,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:46:51,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:46:51,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:46:51,579 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:46:51,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:46:51,579 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:46:51,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:46:51,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:46:51,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:46:51,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:46:51,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:46:51,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:46:51,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:46:51,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:46:51,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:46:51,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:46:51,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:46:51,582 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:46:51,583 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:46:51,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:46:51,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:46:52,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:46:52,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:46:52,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:46:52,151 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:46:52,153 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:46:52,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2021-04-28 23:46:52,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da93c7b4f/9448a6d0cd51402188f37fcd00d1e234/FLAG0987c7326 [2021-04-28 23:46:53,131 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:46:53,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2021-04-28 23:46:53,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da93c7b4f/9448a6d0cd51402188f37fcd00d1e234/FLAG0987c7326 [2021-04-28 23:46:53,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da93c7b4f/9448a6d0cd51402188f37fcd00d1e234 [2021-04-28 23:46:53,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:46:53,412 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:46:53,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:46:53,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:46:53,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:46:53,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:46:53" (1/1) ... [2021-04-28 23:46:53,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446b77a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:53, skipping insertion in model container [2021-04-28 23:46:53,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:46:53" (1/1) ... [2021-04-28 23:46:53,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:46:53,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:46:53,736 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-wmm/safe011_tso.opt.i[949,962] [2021-04-28 23:46:54,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:46:54,123 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:46:54,143 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-wmm/safe011_tso.opt.i[949,962] [2021-04-28 23:46:54,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:46:54,356 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:46:54,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54 WrapperNode [2021-04-28 23:46:54,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:46:54,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:46:54,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:46:54,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:46:54,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:46:54,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:46:54,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:46:54,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:46:54,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (1/1) ... [2021-04-28 23:46:54,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:46:54,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:46:54,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:46:54,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:46:54,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (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 23:46:54,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:46:54,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:46:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:46:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:46:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:46:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:46:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:46:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:46:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:46:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:46:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:46:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:46:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:46:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:46:54,680 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 23:46:55,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:46:55,245 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:46:55,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:46:55 BoogieIcfgContainer [2021-04-28 23:46:55,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:46:55,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:46:55,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:46:55,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:46:55,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:46:53" (1/3) ... [2021-04-28 23:46:55,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff7511a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:46:55, skipping insertion in model container [2021-04-28 23:46:55,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:46:54" (2/3) ... [2021-04-28 23:46:55,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff7511a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:46:55, skipping insertion in model container [2021-04-28 23:46:55,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:46:55" (3/3) ... [2021-04-28 23:46:55,259 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2021-04-28 23:46:55,268 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:46:55,275 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:46:55,277 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:46:55,315 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,315 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,317 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,317 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,323 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,324 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,324 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,324 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,326 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,330 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,335 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,336 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,339 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,339 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:46:55,342 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:46:55,371 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:46:55,404 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:46:55,404 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:46:55,405 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:46:55,405 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:46:55,405 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:46:55,405 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:46:55,405 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:46:55,405 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:46:55,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:46:55,499 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 23:46:55,499 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:46:55,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:46:55,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:46:55,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-28 23:46:55,513 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:46:55,533 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:46:55,538 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:46:55,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-28 23:46:55,564 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-28 23:46:55,565 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:46:55,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:46:55,570 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:47:00,041 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:47:00,206 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:47:00,361 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:47:00,532 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:47:00,986 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:47:01,171 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:47:01,899 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:47:02,093 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:47:02,270 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:47:02,447 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:47:02,922 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:47:03,145 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:47:03,357 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:47:03,575 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:47:04,999 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:47:05,324 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:47:05,428 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:47:05,655 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:47:05,957 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:47:06,088 INFO L158 LiptonReduction]: Checked pairs total: 6642 [2021-04-28 23:47:06,089 INFO L160 LiptonReduction]: Total number of compositions: 93 [2021-04-28 23:47:06,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10582 [2021-04-28 23:47:06,119 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-04-28 23:47:06,119 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:47:06,119 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:06,120 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:06,121 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:06,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:06,129 INFO L82 PathProgramCache]: Analyzing trace with hash 5128213, now seen corresponding path program 1 times [2021-04-28 23:47:06,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:06,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857239202] [2021-04-28 23:47:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:06,534 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:47:06,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:47:06,566 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 23:47:06,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857239202] [2021-04-28 23:47:06,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:06,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:47:06,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280926334] [2021-04-28 23:47:06,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:47:06,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:06,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:47:06,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:47:06,611 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:47:06,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:06,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:06,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:47:06,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:06,859 INFO L129 PetriNetUnfolder]: 278/931 cut-off events. [2021-04-28 23:47:06,859 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:47:06,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 931 events. 278/931 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 8419 event pairs, 101 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 1385. Up to 293 conditions per place. [2021-04-28 23:47:06,869 INFO L132 encePairwiseOnDemand]: 148/167 looper letters, 6 selfloop transitions, 6 changer transitions 36/80 dead transitions. [2021-04-28 23:47:06,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 80 transitions, 237 flow [2021-04-28 23:47:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:47:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:47:06,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2021-04-28 23:47:06,889 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.718562874251497 [2021-04-28 23:47:06,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2021-04-28 23:47:06,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2021-04-28 23:47:06,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:06,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2021-04-28 23:47:06,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:06,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:06,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:06,914 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 360 transitions. [2021-04-28 23:47:06,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 80 transitions, 237 flow [2021-04-28 23:47:06,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 80 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:47:06,922 INFO L241 Difference]: Finished difference. Result has 81 places, 44 transitions, 130 flow [2021-04-28 23:47:06,926 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=81, PETRI_TRANSITIONS=44} [2021-04-28 23:47:06,927 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 1 predicate places. [2021-04-28 23:47:06,927 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:06,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 44 transitions, 130 flow [2021-04-28 23:47:06,928 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 44 transitions, 130 flow [2021-04-28 23:47:06,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 130 flow [2021-04-28 23:47:06,954 INFO L129 PetriNetUnfolder]: 45/220 cut-off events. [2021-04-28 23:47:06,954 INFO L130 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2021-04-28 23:47:06,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 220 events. 45/220 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1405 event pairs, 19 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 360. Up to 62 conditions per place. [2021-04-28 23:47:06,961 INFO L146 LiptonReduction]: Number of co-enabled transitions 998 [2021-04-28 23:47:06,976 INFO L158 LiptonReduction]: Checked pairs total: 221 [2021-04-28 23:47:06,977 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:06,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-04-28 23:47:06,979 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 130 flow [2021-04-28 23:47:06,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:06,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:06,980 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:06,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:47:06,980 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:06,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:06,981 INFO L82 PathProgramCache]: Analyzing trace with hash 158972960, now seen corresponding path program 1 times [2021-04-28 23:47:06,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:06,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656711363] [2021-04-28 23:47:06,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:07,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:07,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:07,057 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 23:47:07,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656711363] [2021-04-28 23:47:07,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:07,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:47:07,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708679554] [2021-04-28 23:47:07,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:47:07,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:07,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:47:07,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:47:07,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 167 [2021-04-28 23:47:07,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:07,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 167 [2021-04-28 23:47:07,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:07,103 INFO L129 PetriNetUnfolder]: 36/191 cut-off events. [2021-04-28 23:47:07,103 INFO L130 PetriNetUnfolder]: For 38/42 co-relation queries the response was YES. [2021-04-28 23:47:07,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 191 events. 36/191 cut-off events. For 38/42 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1135 event pairs, 14 based on Foata normal form. 1/121 useless extension candidates. Maximal degree in co-relation 328. Up to 49 conditions per place. [2021-04-28 23:47:07,107 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 1 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2021-04-28 23:47:07,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 44 transitions, 138 flow [2021-04-28 23:47:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:47:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:47:07,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2021-04-28 23:47:07,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7445109780439122 [2021-04-28 23:47:07,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2021-04-28 23:47:07,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2021-04-28 23:47:07,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:07,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2021-04-28 23:47:07,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,130 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 130 flow. Second operand 3 states and 373 transitions. [2021-04-28 23:47:07,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 44 transitions, 138 flow [2021-04-28 23:47:07,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:47:07,135 INFO L241 Difference]: Finished difference. Result has 51 places, 44 transitions, 129 flow [2021-04-28 23:47:07,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2021-04-28 23:47:07,137 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -29 predicate places. [2021-04-28 23:47:07,137 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:07,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 44 transitions, 129 flow [2021-04-28 23:47:07,140 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 44 transitions, 129 flow [2021-04-28 23:47:07,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 44 transitions, 129 flow [2021-04-28 23:47:07,166 INFO L129 PetriNetUnfolder]: 36/199 cut-off events. [2021-04-28 23:47:07,166 INFO L130 PetriNetUnfolder]: For 14/18 co-relation queries the response was YES. [2021-04-28 23:47:07,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 199 events. 36/199 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1262 event pairs, 15 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 303. Up to 49 conditions per place. [2021-04-28 23:47:07,173 INFO L146 LiptonReduction]: Number of co-enabled transitions 996 [2021-04-28 23:47:07,188 INFO L158 LiptonReduction]: Checked pairs total: 221 [2021-04-28 23:47:07,189 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:07,190 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-04-28 23:47:07,193 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 129 flow [2021-04-28 23:47:07,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,194 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:07,195 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:07,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:47:07,195 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:07,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:07,196 INFO L82 PathProgramCache]: Analyzing trace with hash 158952624, now seen corresponding path program 1 times [2021-04-28 23:47:07,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:07,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736360403] [2021-04-28 23:47:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:07,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:07,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:07,313 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:47:07,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:47:07,325 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 23:47:07,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736360403] [2021-04-28 23:47:07,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:07,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:47:07,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825824134] [2021-04-28 23:47:07,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:47:07,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:07,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:47:07,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:47:07,331 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:47:07,332 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:07,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:47:07,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:07,385 INFO L129 PetriNetUnfolder]: 30/179 cut-off events. [2021-04-28 23:47:07,386 INFO L130 PetriNetUnfolder]: For 32/69 co-relation queries the response was YES. [2021-04-28 23:47:07,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 179 events. 30/179 cut-off events. For 32/69 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1046 event pairs, 8 based on Foata normal form. 9/122 useless extension candidates. Maximal degree in co-relation 339. Up to 41 conditions per place. [2021-04-28 23:47:07,389 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 10 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2021-04-28 23:47:07,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 201 flow [2021-04-28 23:47:07,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:47:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:47:07,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 449 transitions. [2021-04-28 23:47:07,392 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6721556886227545 [2021-04-28 23:47:07,392 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 449 transitions. [2021-04-28 23:47:07,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 449 transitions. [2021-04-28 23:47:07,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:07,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 449 transitions. [2021-04-28 23:47:07,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,399 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,399 INFO L185 Difference]: Start difference. First operand has 51 places, 44 transitions, 129 flow. Second operand 4 states and 449 transitions. [2021-04-28 23:47:07,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 201 flow [2021-04-28 23:47:07,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 191 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:47:07,403 INFO L241 Difference]: Finished difference. Result has 54 places, 49 transitions, 180 flow [2021-04-28 23:47:07,403 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2021-04-28 23:47:07,403 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -26 predicate places. [2021-04-28 23:47:07,403 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:07,404 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 49 transitions, 180 flow [2021-04-28 23:47:07,404 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 49 transitions, 180 flow [2021-04-28 23:47:07,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 49 transitions, 180 flow [2021-04-28 23:47:07,426 INFO L129 PetriNetUnfolder]: 30/167 cut-off events. [2021-04-28 23:47:07,426 INFO L130 PetriNetUnfolder]: For 57/64 co-relation queries the response was YES. [2021-04-28 23:47:07,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 167 events. 30/167 cut-off events. For 57/64 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 959 event pairs, 7 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 318. Up to 41 conditions per place. [2021-04-28 23:47:07,432 INFO L146 LiptonReduction]: Number of co-enabled transitions 1150 [2021-04-28 23:47:07,445 INFO L158 LiptonReduction]: Checked pairs total: 238 [2021-04-28 23:47:07,445 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:07,445 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-04-28 23:47:07,447 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 180 flow [2021-04-28 23:47:07,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,448 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:07,448 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:07,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:47:07,449 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:07,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:07,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1877434295, now seen corresponding path program 1 times [2021-04-28 23:47:07,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:07,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193773437] [2021-04-28 23:47:07,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:07,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:07,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:07,529 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:47:07,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:47:07,545 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 23:47:07,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193773437] [2021-04-28 23:47:07,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:07,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:47:07,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251630871] [2021-04-28 23:47:07,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:47:07,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:07,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:47:07,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:47:07,553 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:47:07,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:07,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:47:07,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:07,613 INFO L129 PetriNetUnfolder]: 23/146 cut-off events. [2021-04-28 23:47:07,613 INFO L130 PetriNetUnfolder]: For 71/115 co-relation queries the response was YES. [2021-04-28 23:47:07,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 146 events. 23/146 cut-off events. For 71/115 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 809 event pairs, 1 based on Foata normal form. 10/102 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2021-04-28 23:47:07,616 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 14 selfloop transitions, 12 changer transitions 0/58 dead transitions. [2021-04-28 23:47:07,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 288 flow [2021-04-28 23:47:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:47:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:47:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2021-04-28 23:47:07,620 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6736526946107785 [2021-04-28 23:47:07,621 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 450 transitions. [2021-04-28 23:47:07,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 450 transitions. [2021-04-28 23:47:07,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:07,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 450 transitions. [2021-04-28 23:47:07,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,627 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,628 INFO L185 Difference]: Start difference. First operand has 54 places, 49 transitions, 180 flow. Second operand 4 states and 450 transitions. [2021-04-28 23:47:07,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 288 flow [2021-04-28 23:47:07,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 288 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:47:07,633 INFO L241 Difference]: Finished difference. Result has 60 places, 56 transitions, 284 flow [2021-04-28 23:47:07,633 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2021-04-28 23:47:07,634 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2021-04-28 23:47:07,634 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:07,634 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 56 transitions, 284 flow [2021-04-28 23:47:07,634 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 56 transitions, 284 flow [2021-04-28 23:47:07,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 284 flow [2021-04-28 23:47:07,657 INFO L129 PetriNetUnfolder]: 23/154 cut-off events. [2021-04-28 23:47:07,657 INFO L130 PetriNetUnfolder]: For 163/175 co-relation queries the response was YES. [2021-04-28 23:47:07,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 154 events. 23/154 cut-off events. For 163/175 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 899 event pairs, 1 based on Foata normal form. 3/99 useless extension candidates. Maximal degree in co-relation 356. Up to 35 conditions per place. [2021-04-28 23:47:07,664 INFO L146 LiptonReduction]: Number of co-enabled transitions 1356 [2021-04-28 23:47:07,675 INFO L158 LiptonReduction]: Checked pairs total: 245 [2021-04-28 23:47:07,675 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:07,676 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-04-28 23:47:07,677 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 284 flow [2021-04-28 23:47:07,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,678 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:07,679 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:07,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:47:07,679 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:07,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1123245711, now seen corresponding path program 1 times [2021-04-28 23:47:07,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:07,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531917732] [2021-04-28 23:47:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:07,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:07,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:07,749 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:47:07,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:47:07,764 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 23:47:07,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531917732] [2021-04-28 23:47:07,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:07,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:47:07,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248208018] [2021-04-28 23:47:07,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:47:07,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:07,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:47:07,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:47:07,775 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 167 [2021-04-28 23:47:07,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:07,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 167 [2021-04-28 23:47:07,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:07,909 INFO L129 PetriNetUnfolder]: 58/241 cut-off events. [2021-04-28 23:47:07,910 INFO L130 PetriNetUnfolder]: For 478/531 co-relation queries the response was YES. [2021-04-28 23:47:07,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 241 events. 58/241 cut-off events. For 478/531 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1445 event pairs, 0 based on Foata normal form. 15/175 useless extension candidates. Maximal degree in co-relation 691. Up to 49 conditions per place. [2021-04-28 23:47:07,914 INFO L132 encePairwiseOnDemand]: 159/167 looper letters, 21 selfloop transitions, 24 changer transitions 3/79 dead transitions. [2021-04-28 23:47:07,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 79 transitions, 587 flow [2021-04-28 23:47:07,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:47:07,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:47:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 555 transitions. [2021-04-28 23:47:07,917 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6646706586826348 [2021-04-28 23:47:07,918 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 555 transitions. [2021-04-28 23:47:07,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 555 transitions. [2021-04-28 23:47:07,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:07,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 555 transitions. [2021-04-28 23:47:07,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,926 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:07,926 INFO L185 Difference]: Start difference. First operand has 60 places, 56 transitions, 284 flow. Second operand 5 states and 555 transitions. [2021-04-28 23:47:07,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 79 transitions, 587 flow [2021-04-28 23:47:07,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 79 transitions, 587 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:47:07,941 INFO L241 Difference]: Finished difference. Result has 68 places, 70 transitions, 533 flow [2021-04-28 23:47:07,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=533, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2021-04-28 23:47:07,942 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -12 predicate places. [2021-04-28 23:47:07,942 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:07,942 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 70 transitions, 533 flow [2021-04-28 23:47:07,943 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 70 transitions, 533 flow [2021-04-28 23:47:07,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 70 transitions, 533 flow [2021-04-28 23:47:07,978 INFO L129 PetriNetUnfolder]: 47/223 cut-off events. [2021-04-28 23:47:07,978 INFO L130 PetriNetUnfolder]: For 585/619 co-relation queries the response was YES. [2021-04-28 23:47:07,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 223 events. 47/223 cut-off events. For 585/619 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1380 event pairs, 0 based on Foata normal form. 4/149 useless extension candidates. Maximal degree in co-relation 690. Up to 46 conditions per place. [2021-04-28 23:47:07,987 INFO L146 LiptonReduction]: Number of co-enabled transitions 1772 [2021-04-28 23:47:08,001 INFO L158 LiptonReduction]: Checked pairs total: 49 [2021-04-28 23:47:08,001 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:08,001 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-04-28 23:47:08,008 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 533 flow [2021-04-28 23:47:08,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:08,009 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:08,009 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:08,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:47:08,010 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:08,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:08,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1928446196, now seen corresponding path program 1 times [2021-04-28 23:47:08,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:08,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128809485] [2021-04-28 23:47:08,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:08,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:08,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:08,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:08,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:08,120 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:47:08,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:47:08,134 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 23:47:08,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128809485] [2021-04-28 23:47:08,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:08,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:47:08,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370478621] [2021-04-28 23:47:08,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:47:08,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:08,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:47:08,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:47:08,138 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 167 [2021-04-28 23:47:08,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 533 flow. Second operand has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:08,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:08,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 167 [2021-04-28 23:47:08,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:08,225 INFO L129 PetriNetUnfolder]: 42/226 cut-off events. [2021-04-28 23:47:08,226 INFO L130 PetriNetUnfolder]: For 809/902 co-relation queries the response was YES. [2021-04-28 23:47:08,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 809 conditions, 226 events. 42/226 cut-off events. For 809/902 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1443 event pairs, 0 based on Foata normal form. 14/157 useless extension candidates. Maximal degree in co-relation 784. Up to 49 conditions per place. [2021-04-28 23:47:08,229 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 13 selfloop transitions, 9 changer transitions 31/82 dead transitions. [2021-04-28 23:47:08,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 82 transitions, 760 flow [2021-04-28 23:47:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:47:08,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:47:08,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 550 transitions. [2021-04-28 23:47:08,233 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6586826347305389 [2021-04-28 23:47:08,233 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 550 transitions. [2021-04-28 23:47:08,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 550 transitions. [2021-04-28 23:47:08,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:08,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 550 transitions. [2021-04-28 23:47:08,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:08,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:08,242 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:08,242 INFO L185 Difference]: Start difference. First operand has 68 places, 70 transitions, 533 flow. Second operand 5 states and 550 transitions. [2021-04-28 23:47:08,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 82 transitions, 760 flow [2021-04-28 23:47:08,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 82 transitions, 760 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:47:08,252 INFO L241 Difference]: Finished difference. Result has 75 places, 49 transitions, 344 flow [2021-04-28 23:47:08,252 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=75, PETRI_TRANSITIONS=49} [2021-04-28 23:47:08,253 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -5 predicate places. [2021-04-28 23:47:08,253 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:08,253 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 49 transitions, 344 flow [2021-04-28 23:47:08,254 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 49 transitions, 344 flow [2021-04-28 23:47:08,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 49 transitions, 344 flow [2021-04-28 23:47:08,272 INFO L129 PetriNetUnfolder]: 10/94 cut-off events. [2021-04-28 23:47:08,272 INFO L130 PetriNetUnfolder]: For 325/333 co-relation queries the response was YES. [2021-04-28 23:47:08,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 94 events. 10/94 cut-off events. For 325/333 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 422 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 299. Up to 17 conditions per place. [2021-04-28 23:47:08,276 INFO L146 LiptonReduction]: Number of co-enabled transitions 1046 [2021-04-28 23:47:08,284 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-28 23:47:08,284 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:08,285 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-04-28 23:47:08,291 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 344 flow [2021-04-28 23:47:08,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:08,292 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:08,292 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:08,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:47:08,293 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:08,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:08,293 INFO L82 PathProgramCache]: Analyzing trace with hash -83936772, now seen corresponding path program 1 times [2021-04-28 23:47:08,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:08,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125894488] [2021-04-28 23:47:08,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:08,416 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:47:08,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:47:08,425 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:47:08,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:47:08,437 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 23:47:08,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125894488] [2021-04-28 23:47:08,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:08,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:47:08,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988381402] [2021-04-28 23:47:08,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:47:08,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:08,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:47:08,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:47:08,441 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-28 23:47:08,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 49 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:08,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:08,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-28 23:47:08,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:09,497 INFO L129 PetriNetUnfolder]: 3484/6041 cut-off events. [2021-04-28 23:47:09,498 INFO L130 PetriNetUnfolder]: For 3346/3990 co-relation queries the response was YES. [2021-04-28 23:47:09,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12742 conditions, 6041 events. 3484/6041 cut-off events. For 3346/3990 co-relation queries the response was YES. Maximal size of possible extension queue 1734. Compared 53480 event pairs, 1431 based on Foata normal form. 36/1422 useless extension candidates. Maximal degree in co-relation 12712. Up to 3733 conditions per place. [2021-04-28 23:47:09,570 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 30 selfloop transitions, 28 changer transitions 0/85 dead transitions. [2021-04-28 23:47:09,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 85 transitions, 532 flow [2021-04-28 23:47:09,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:47:09,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:47:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 581 transitions. [2021-04-28 23:47:09,574 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6958083832335329 [2021-04-28 23:47:09,574 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 581 transitions. [2021-04-28 23:47:09,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 581 transitions. [2021-04-28 23:47:09,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:09,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 581 transitions. [2021-04-28 23:47:09,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:09,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:09,581 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:09,581 INFO L185 Difference]: Start difference. First operand has 73 places, 49 transitions, 344 flow. Second operand 5 states and 581 transitions. [2021-04-28 23:47:09,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 85 transitions, 532 flow [2021-04-28 23:47:09,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 438 flow, removed 9 selfloop flow, removed 11 redundant places. [2021-04-28 23:47:09,593 INFO L241 Difference]: Finished difference. Result has 69 places, 75 transitions, 461 flow [2021-04-28 23:47:09,593 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=461, PETRI_PLACES=69, PETRI_TRANSITIONS=75} [2021-04-28 23:47:09,594 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -11 predicate places. [2021-04-28 23:47:09,594 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:09,594 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 75 transitions, 461 flow [2021-04-28 23:47:09,594 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 75 transitions, 461 flow [2021-04-28 23:47:09,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 75 transitions, 461 flow [2021-04-28 23:47:10,299 INFO L129 PetriNetUnfolder]: 3249/5685 cut-off events. [2021-04-28 23:47:10,300 INFO L130 PetriNetUnfolder]: For 2344/4942 co-relation queries the response was YES. [2021-04-28 23:47:10,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16128 conditions, 5685 events. 3249/5685 cut-off events. For 2344/4942 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 50445 event pairs, 1341 based on Foata normal form. 7/1628 useless extension candidates. Maximal degree in co-relation 16105. Up to 5010 conditions per place. [2021-04-28 23:47:10,542 INFO L146 LiptonReduction]: Number of co-enabled transitions 1310 [2021-04-28 23:47:10,560 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:47:10,560 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:10,561 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 967 [2021-04-28 23:47:10,562 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 75 transitions, 461 flow [2021-04-28 23:47:10,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:10,563 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:10,563 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:10,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:47:10,563 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:10,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:10,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1645877207, now seen corresponding path program 1 times [2021-04-28 23:47:10,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:10,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250560952] [2021-04-28 23:47:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:10,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:10,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:10,611 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:47:10,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:47:10,617 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:47:10,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:47:10,632 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 23:47:10,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250560952] [2021-04-28 23:47:10,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:10,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:47:10,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207040434] [2021-04-28 23:47:10,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:47:10,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:10,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:47:10,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:47:10,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-28 23:47:10,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 75 transitions, 461 flow. Second operand has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:10,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:10,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-28 23:47:10,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:11,934 INFO L129 PetriNetUnfolder]: 3079/6149 cut-off events. [2021-04-28 23:47:11,935 INFO L130 PetriNetUnfolder]: For 3688/23820 co-relation queries the response was YES. [2021-04-28 23:47:11,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23333 conditions, 6149 events. 3079/6149 cut-off events. For 3688/23820 co-relation queries the response was YES. Maximal size of possible extension queue 1944. Compared 62118 event pairs, 243 based on Foata normal form. 84/1848 useless extension candidates. Maximal degree in co-relation 23308. Up to 5391 conditions per place. [2021-04-28 23:47:12,017 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 19 selfloop transitions, 63 changer transitions 12/121 dead transitions. [2021-04-28 23:47:12,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 121 transitions, 902 flow [2021-04-28 23:47:12,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:47:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:47:12,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 815 transitions. [2021-04-28 23:47:12,023 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6971770744225834 [2021-04-28 23:47:12,023 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 815 transitions. [2021-04-28 23:47:12,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 815 transitions. [2021-04-28 23:47:12,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:12,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 815 transitions. [2021-04-28 23:47:12,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:12,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:12,034 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:12,034 INFO L185 Difference]: Start difference. First operand has 69 places, 75 transitions, 461 flow. Second operand 7 states and 815 transitions. [2021-04-28 23:47:12,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 121 transitions, 902 flow [2021-04-28 23:47:12,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 121 transitions, 902 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:47:12,100 INFO L241 Difference]: Finished difference. Result has 78 places, 107 transitions, 878 flow [2021-04-28 23:47:12,101 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=878, PETRI_PLACES=78, PETRI_TRANSITIONS=107} [2021-04-28 23:47:12,102 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -2 predicate places. [2021-04-28 23:47:12,102 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:12,102 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 107 transitions, 878 flow [2021-04-28 23:47:12,103 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 107 transitions, 878 flow [2021-04-28 23:47:12,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 107 transitions, 878 flow [2021-04-28 23:47:12,882 INFO L129 PetriNetUnfolder]: 1735/4307 cut-off events. [2021-04-28 23:47:12,882 INFO L130 PetriNetUnfolder]: For 10757/35794 co-relation queries the response was YES. [2021-04-28 23:47:12,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18688 conditions, 4307 events. 1735/4307 cut-off events. For 10757/35794 co-relation queries the response was YES. Maximal size of possible extension queue 1522. Compared 50076 event pairs, 243 based on Foata normal form. 4/1082 useless extension candidates. Maximal degree in co-relation 18660. Up to 3669 conditions per place. [2021-04-28 23:47:13,027 INFO L146 LiptonReduction]: Number of co-enabled transitions 1630 [2021-04-28 23:47:13,060 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:47:13,060 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:13,060 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 958 [2021-04-28 23:47:13,061 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 107 transitions, 878 flow [2021-04-28 23:47:13,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:13,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:47:13,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:47:13,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:47:13,063 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:47:13,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:47:13,063 INFO L82 PathProgramCache]: Analyzing trace with hash 768880741, now seen corresponding path program 1 times [2021-04-28 23:47:13,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:47:13,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034430089] [2021-04-28 23:47:13,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:47:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:47:13,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:13,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:13,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:47:13,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:47:13,141 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:47:13,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:47:13,156 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:47:13,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:47:13,175 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 23:47:13,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034430089] [2021-04-28 23:47:13,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:47:13,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:47:13,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225791073] [2021-04-28 23:47:13,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:47:13,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:47:13,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:47:13,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:47:13,181 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-28 23:47:13,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 107 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:13,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:47:13,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-28 23:47:13,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:47:14,465 INFO L129 PetriNetUnfolder]: 1621/4313 cut-off events. [2021-04-28 23:47:14,466 INFO L130 PetriNetUnfolder]: For 7764/63725 co-relation queries the response was YES. [2021-04-28 23:47:14,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22758 conditions, 4313 events. 1621/4313 cut-off events. For 7764/63725 co-relation queries the response was YES. Maximal size of possible extension queue 1530. Compared 50798 event pairs, 0 based on Foata normal form. 116/1286 useless extension candidates. Maximal degree in co-relation 22728. Up to 3591 conditions per place. [2021-04-28 23:47:14,547 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 0 selfloop transitions, 0 changer transitions 132/132 dead transitions. [2021-04-28 23:47:14,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 132 transitions, 1264 flow [2021-04-28 23:47:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:47:14,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:47:14,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1026 transitions. [2021-04-28 23:47:14,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6826347305389222 [2021-04-28 23:47:14,553 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1026 transitions. [2021-04-28 23:47:14,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1026 transitions. [2021-04-28 23:47:14,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:47:14,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1026 transitions. [2021-04-28 23:47:14,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:14,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:14,564 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 167.0) internal successors, (1670), 10 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:14,565 INFO L185 Difference]: Start difference. First operand has 78 places, 107 transitions, 878 flow. Second operand 9 states and 1026 transitions. [2021-04-28 23:47:14,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 132 transitions, 1264 flow [2021-04-28 23:47:15,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 132 transitions, 1034 flow, removed 46 selfloop flow, removed 7 redundant places. [2021-04-28 23:47:15,445 INFO L241 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2021-04-28 23:47:15,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2021-04-28 23:47:15,446 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -2 predicate places. [2021-04-28 23:47:15,447 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:47:15,447 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 0 transitions, 0 flow [2021-04-28 23:47:15,448 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 0 transitions, 0 flow [2021-04-28 23:47:15,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:47:15,448 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:47:15,449 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:47:15,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:47:15,449 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:47:15,449 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:47:15,449 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:47:15,449 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:47:15,451 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:47:15,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:47:15,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:47:15,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:47:15 BasicIcfg [2021-04-28 23:47:15,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:47:15,459 INFO L168 Benchmark]: Toolchain (without parser) took 22097.30 ms. Allocated memory was 302.0 MB in the beginning and 580.9 MB in the end (delta: 278.9 MB). Free memory was 275.9 MB in the beginning and 250.6 MB in the end (delta: 25.3 MB). Peak memory consumption was 305.7 MB. Max. memory is 16.0 GB. [2021-04-28 23:47:15,459 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:47:15,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 945.23 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 272.2 MB in the end (delta: 483.7 kB). Peak memory consumption was 26.2 MB. Max. memory is 16.0 GB. [2021-04-28 23:47:15,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.72 ms. Allocated memory is still 302.0 MB. Free memory was 272.2 MB in the beginning and 270.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:47:15,461 INFO L168 Benchmark]: Boogie Preprocessor took 67.35 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 269.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:47:15,464 INFO L168 Benchmark]: RCFGBuilder took 716.78 ms. Allocated memory is still 302.0 MB. Free memory was 269.1 MB in the beginning and 244.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:47:15,466 INFO L168 Benchmark]: TraceAbstraction took 20207.69 ms. Allocated memory was 302.0 MB in the beginning and 580.9 MB in the end (delta: 278.9 MB). Free memory was 244.9 MB in the beginning and 250.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 273.3 MB. Max. memory is 16.0 GB. [2021-04-28 23:47:15,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 945.23 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 272.2 MB in the end (delta: 483.7 kB). Peak memory consumption was 26.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 100.72 ms. Allocated memory is still 302.0 MB. Free memory was 272.2 MB in the beginning and 270.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 67.35 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 269.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 716.78 ms. Allocated memory is still 302.0 MB. Free memory was 269.1 MB in the beginning and 244.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20207.69 ms. Allocated memory was 302.0 MB in the beginning and 580.9 MB in the end (delta: 278.9 MB). Free memory was 244.9 MB in the beginning and 250.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 273.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10550.8ms, 68 PlacesBefore, 80 PlacesAfterwards, 59 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 6642 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2255, positive: 2055, positive conditional: 2055, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 980, positive: 913, positive conditional: 0, positive unconditional: 913, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 980, positive: 913, positive conditional: 0, positive unconditional: 913, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 980, positive: 891, positive conditional: 0, positive unconditional: 891, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 89, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 67, negative conditional: 0, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 531, positive: 160, positive conditional: 0, positive unconditional: 160, negative: 371, negative conditional: 0, negative unconditional: 371, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2255, positive: 1142, positive conditional: 1142, positive unconditional: 0, negative: 133, negative conditional: 133, negative unconditional: 0, unknown: 980, unknown conditional: 980, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 973, Positive cache size: 906, Positive conditional cache size: 906, Positive unconditional cache size: 0, Negative cache size: 67, Negative conditional cache size: 67, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.8ms, 81 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 998 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 221 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 61, positive: 52, positive conditional: 52, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 908, Positive conditional cache size: 908, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.9ms, 51 PlacesBefore, 51 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 996 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 221 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 986, Positive cache size: 917, Positive conditional cache size: 917, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.9ms, 54 PlacesBefore, 54 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 238 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 990, Positive cache size: 920, Positive conditional cache size: 920, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.0ms, 60 PlacesBefore, 60 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 1356 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 245 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 994, Positive cache size: 924, Positive conditional cache size: 924, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.4ms, 68 PlacesBefore, 68 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 1772 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 49 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 998, Positive cache size: 928, Positive conditional cache size: 928, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.4ms, 75 PlacesBefore, 73 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 999, Positive cache size: 929, Positive conditional cache size: 929, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 966.2ms, 69 PlacesBefore, 69 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 1310 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 999, Positive cache size: 929, Positive conditional cache size: 929, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 957.5ms, 78 PlacesBefore, 78 PlacesAfterwards, 107 TransitionsBefore, 107 TransitionsAfterwards, 1630 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 999, Positive cache size: 929, Positive conditional cache size: 929, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7ms, 78 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 999, Positive cache size: 929, Positive conditional cache size: 929, Positive unconditional cache size: 0, Negative cache size: 70, Negative conditional cache size: 70, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 20054.4ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5732.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10698.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 86 SDtfs, 81 SDslu, 38 SDs, 0 SdLazy, 334 SolverSat, 145 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 493.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 253.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=878occurred in iteration=8, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.1ms SsaConstructionTime, 236.7ms SatisfiabilityAnalysisTime, 803.7ms InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 419 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...