/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/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:40:53,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:40:53,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:40:53,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:40:53,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:40:53,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:40:53,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:40:53,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:40:53,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:40:53,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:40:53,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:40:53,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:40:53,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:40:53,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:40:53,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:40:53,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:40:53,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:40:53,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:40:53,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:40:53,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:40:53,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:40:53,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:40:53,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:40:53,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:40:53,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:40:53,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:40:53,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:40:53,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:40:53,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:40:53,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:40:53,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:40:53,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:40:53,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:40:53,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:40:53,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:40:53,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:40:53,385 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 23:40:53,415 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:40:53,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:40:53,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:40:53,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:40:53,418 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:40:53,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:40:53,419 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:40:53,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:40:53,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:40:53,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:40:53,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:40:53,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:40:53,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:40:53,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:40:53,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:40:53,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:40:53,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:40:53,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:40:53,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:40:53,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:40:53,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:40:53,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:40:53,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:40:53,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:40:53,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:40:53,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:40:53,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:40:53,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:40:53,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:40:53,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:40:53,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:40:53,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:40:53,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:40:53,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:40:53,923 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:40:53,926 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:40:53,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2021-04-28 23:40:54,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29877f05b/bf192e72cbb4448d9a2256d397794c68/FLAGbc9feec16 [2021-04-28 23:40:54,934 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:40:54,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2021-04-28 23:40:54,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29877f05b/bf192e72cbb4448d9a2256d397794c68/FLAGbc9feec16 [2021-04-28 23:40:55,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29877f05b/bf192e72cbb4448d9a2256d397794c68 [2021-04-28 23:40:55,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:40:55,208 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:40:55,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:40:55,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:40:55,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:40:55,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:40:55" (1/1) ... [2021-04-28 23:40:55,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6c448b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:55, skipping insertion in model container [2021-04-28 23:40:55,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:40:55" (1/1) ... [2021-04-28 23:40:55,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:40:55,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:40:55,465 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/safe008_tso.opt.i[949,962] [2021-04-28 23:40:55,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:40:55,881 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:40:55,906 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/safe008_tso.opt.i[949,962] [2021-04-28 23:40:55,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:40:56,161 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:40:56,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56 WrapperNode [2021-04-28 23:40:56,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:40:56,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:40:56,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:40:56,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:40:56,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:40:56,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:40:56,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:40:56,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:40:56,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (1/1) ... [2021-04-28 23:40:56,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:40:56,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:40:56,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:40:56,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:40:56,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (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 23:40:56,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:40:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:40:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:40:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:40:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:40:56,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:40:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:40:56,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:40:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:40:56,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:40:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:40:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:40:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:40:56,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:40:56,491 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 23:40:57,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:40:57,151 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:40:57,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:40:57 BoogieIcfgContainer [2021-04-28 23:40:57,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:40:57,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:40:57,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:40:57,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:40:57,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:40:55" (1/3) ... [2021-04-28 23:40:57,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d703260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:40:57, skipping insertion in model container [2021-04-28 23:40:57,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:40:56" (2/3) ... [2021-04-28 23:40:57,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d703260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:40:57, skipping insertion in model container [2021-04-28 23:40:57,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:40:57" (3/3) ... [2021-04-28 23:40:57,170 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2021-04-28 23:40:57,179 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:40:57,186 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:40:57,188 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:40:57,252 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,252 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,252 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,252 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,256 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,256 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,257 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,257 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,257 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,257 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,258 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,262 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,262 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,262 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,263 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,264 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,264 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,266 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,269 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,269 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:40:57,295 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:40:57,324 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:40:57,368 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:40:57,368 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:40:57,368 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:40:57,369 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:40:57,369 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:40:57,369 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:40:57,369 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:40:57,369 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:40:57,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:40:57,484 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-28 23:40:57,485 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:40:57,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:40:57,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:40:57,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-28 23:40:57,499 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:40:57,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:40:57,521 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:40:57,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-28 23:40:57,542 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-28 23:40:57,542 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:40:57,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 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. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:40:57,546 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:41:02,558 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:41:02,732 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:41:03,032 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:41:03,201 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:41:03,373 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:41:03,528 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:41:03,678 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:41:03,825 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:41:03,982 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:41:04,612 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:41:04,853 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:41:05,096 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:41:05,328 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:41:05,539 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:41:05,769 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:41:05,997 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:41:06,218 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:41:06,434 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:41:06,654 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:41:06,880 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:41:07,116 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:41:07,320 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:41:07,500 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:41:07,792 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-28 23:41:08,096 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-28 23:41:08,425 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-28 23:41:08,528 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:41:08,766 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-28 23:41:08,899 INFO L158 LiptonReduction]: Checked pairs total: 6680 [2021-04-28 23:41:08,899 INFO L160 LiptonReduction]: Total number of compositions: 92 [2021-04-28 23:41:08,904 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11407 [2021-04-28 23:41:08,928 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-28 23:41:08,929 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:08,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:08,930 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:08,930 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:08,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:08,938 INFO L82 PathProgramCache]: Analyzing trace with hash 571592031, now seen corresponding path program 1 times [2021-04-28 23:41:08,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:08,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163479608] [2021-04-28 23:41:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:09,309 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:09,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:09,326 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 23:41:09,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163479608] [2021-04-28 23:41:09,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:09,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:41:09,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847057060] [2021-04-28 23:41:09,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:41:09,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:09,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:41:09,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:41:09,364 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 167 [2021-04-28 23:41:09,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:09,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:09,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 167 [2021-04-28 23:41:09,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:09,532 INFO L129 PetriNetUnfolder]: 126/487 cut-off events. [2021-04-28 23:41:09,532 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:09,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 487 events. 126/487 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 3843 event pairs, 56 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 695. Up to 181 conditions per place. [2021-04-28 23:41:09,542 INFO L132 encePairwiseOnDemand]: 150/167 looper letters, 4 selfloop transitions, 5 changer transitions 33/75 dead transitions. [2021-04-28 23:41:09,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 75 transitions, 215 flow [2021-04-28 23:41:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:41:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:41:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2021-04-28 23:41:09,573 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7245508982035929 [2021-04-28 23:41:09,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2021-04-28 23:41:09,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2021-04-28 23:41:09,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:09,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2021-04-28 23:41:09,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:09,623 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 23:41:09,627 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 23:41:09,629 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 363 transitions. [2021-04-28 23:41:09,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 75 transitions, 215 flow [2021-04-28 23:41:09,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:41:09,636 INFO L241 Difference]: Finished difference. Result has 78 places, 42 transitions, 113 flow [2021-04-28 23:41:09,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=78, PETRI_TRANSITIONS=42} [2021-04-28 23:41:09,640 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 0 predicate places. [2021-04-28 23:41:09,640 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:09,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 42 transitions, 113 flow [2021-04-28 23:41:09,641 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 42 transitions, 113 flow [2021-04-28 23:41:09,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 42 transitions, 113 flow [2021-04-28 23:41:09,659 INFO L129 PetriNetUnfolder]: 23/134 cut-off events. [2021-04-28 23:41:09,659 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 23:41:09,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 134 events. 23/134 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 746 event pairs, 11 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 198. Up to 44 conditions per place. [2021-04-28 23:41:09,663 INFO L146 LiptonReduction]: Number of co-enabled transitions 914 [2021-04-28 23:41:09,687 INFO L158 LiptonReduction]: Checked pairs total: 393 [2021-04-28 23:41:09,687 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:09,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-28 23:41:09,689 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 113 flow [2021-04-28 23:41:09,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:09,690 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:09,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:09,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:41:09,691 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:09,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:09,692 INFO L82 PathProgramCache]: Analyzing trace with hash 539482353, now seen corresponding path program 1 times [2021-04-28 23:41:09,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:09,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581990977] [2021-04-28 23:41:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:09,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:09,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:09,768 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:09,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:09,779 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 23:41:09,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581990977] [2021-04-28 23:41:09,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:09,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:41:09,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501732886] [2021-04-28 23:41:09,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:41:09,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:09,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:41:09,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:41:09,785 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 167 [2021-04-28 23:41:09,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:09,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:09,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 167 [2021-04-28 23:41:09,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:09,822 INFO L129 PetriNetUnfolder]: 14/101 cut-off events. [2021-04-28 23:41:09,822 INFO L130 PetriNetUnfolder]: For 11/41 co-relation queries the response was YES. [2021-04-28 23:41:09,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 101 events. 14/101 cut-off events. For 11/41 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 488 event pairs, 2 based on Foata normal form. 4/66 useless extension candidates. Maximal degree in co-relation 183. Up to 31 conditions per place. [2021-04-28 23:41:09,824 INFO L132 encePairwiseOnDemand]: 162/167 looper letters, 8 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2021-04-28 23:41:09,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 157 flow [2021-04-28 23:41:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:41:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:41:09,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-04-28 23:41:09,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6811377245508982 [2021-04-28 23:41:09,828 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-04-28 23:41:09,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-04-28 23:41:09,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:09,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-04-28 23:41:09,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:09,835 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 23:41:09,836 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 23:41:09,836 INFO L185 Difference]: Start difference. First operand has 49 places, 42 transitions, 113 flow. Second operand 4 states and 455 transitions. [2021-04-28 23:41:09,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 157 flow [2021-04-28 23:41:09,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:41:09,839 INFO L241 Difference]: Finished difference. Result has 54 places, 44 transitions, 142 flow [2021-04-28 23:41:09,840 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2021-04-28 23:41:09,841 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -24 predicate places. [2021-04-28 23:41:09,841 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:09,841 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 44 transitions, 142 flow [2021-04-28 23:41:09,842 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 44 transitions, 142 flow [2021-04-28 23:41:09,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 44 transitions, 142 flow [2021-04-28 23:41:09,857 INFO L129 PetriNetUnfolder]: 14/113 cut-off events. [2021-04-28 23:41:09,858 INFO L130 PetriNetUnfolder]: For 33/39 co-relation queries the response was YES. [2021-04-28 23:41:09,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 113 events. 14/113 cut-off events. For 33/39 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 617 event pairs, 2 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 187. Up to 31 conditions per place. [2021-04-28 23:41:09,862 INFO L146 LiptonReduction]: Number of co-enabled transitions 976 [2021-04-28 23:41:09,876 INFO L158 LiptonReduction]: Checked pairs total: 401 [2021-04-28 23:41:09,876 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:09,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-04-28 23:41:09,879 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 142 flow [2021-04-28 23:41:09,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:09,880 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:09,880 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:09,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:41:09,881 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:09,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:09,883 INFO L82 PathProgramCache]: Analyzing trace with hash 534547742, now seen corresponding path program 1 times [2021-04-28 23:41:09,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:09,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189419142] [2021-04-28 23:41:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:09,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:09,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:09,961 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:09,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:09,971 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 23:41:09,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189419142] [2021-04-28 23:41:09,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:09,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:41:09,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749818327] [2021-04-28 23:41:09,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:41:09,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:09,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:41:09,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:41:09,976 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 167 [2021-04-28 23:41:09,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:09,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:09,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 167 [2021-04-28 23:41:09,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:10,014 INFO L129 PetriNetUnfolder]: 10/95 cut-off events. [2021-04-28 23:41:10,015 INFO L130 PetriNetUnfolder]: For 45/81 co-relation queries the response was YES. [2021-04-28 23:41:10,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 95 events. 10/95 cut-off events. For 45/81 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 462 event pairs, 2 based on Foata normal form. 5/62 useless extension candidates. Maximal degree in co-relation 185. Up to 25 conditions per place. [2021-04-28 23:41:10,017 INFO L132 encePairwiseOnDemand]: 162/167 looper letters, 8 selfloop transitions, 10 changer transitions 0/51 dead transitions. [2021-04-28 23:41:10,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 51 transitions, 222 flow [2021-04-28 23:41:10,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:41:10,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:41:10,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2021-04-28 23:41:10,042 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6841317365269461 [2021-04-28 23:41:10,042 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2021-04-28 23:41:10,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2021-04-28 23:41:10,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:10,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2021-04-28 23:41:10,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,047 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 23:41:10,048 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 23:41:10,049 INFO L185 Difference]: Start difference. First operand has 54 places, 44 transitions, 142 flow. Second operand 4 states and 457 transitions. [2021-04-28 23:41:10,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 51 transitions, 222 flow [2021-04-28 23:41:10,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 51 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:41:10,053 INFO L241 Difference]: Finished difference. Result has 58 places, 49 transitions, 208 flow [2021-04-28 23:41:10,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=58, PETRI_TRANSITIONS=49} [2021-04-28 23:41:10,053 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -20 predicate places. [2021-04-28 23:41:10,053 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:10,054 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 49 transitions, 208 flow [2021-04-28 23:41:10,054 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 49 transitions, 208 flow [2021-04-28 23:41:10,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 49 transitions, 208 flow [2021-04-28 23:41:10,068 INFO L129 PetriNetUnfolder]: 10/99 cut-off events. [2021-04-28 23:41:10,068 INFO L130 PetriNetUnfolder]: For 50/54 co-relation queries the response was YES. [2021-04-28 23:41:10,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 99 events. 10/99 cut-off events. For 50/54 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 503 event pairs, 2 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 190. Up to 25 conditions per place. [2021-04-28 23:41:10,072 INFO L146 LiptonReduction]: Number of co-enabled transitions 1118 [2021-04-28 23:41:10,087 INFO L158 LiptonReduction]: Checked pairs total: 418 [2021-04-28 23:41:10,087 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:10,087 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-04-28 23:41:10,089 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 49 transitions, 208 flow [2021-04-28 23:41:10,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,090 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:10,090 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:10,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:41:10,091 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:10,091 INFO L82 PathProgramCache]: Analyzing trace with hash -455917696, now seen corresponding path program 1 times [2021-04-28 23:41:10,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:10,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543442885] [2021-04-28 23:41:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:10,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:10,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:10,145 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:10,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:10,156 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 23:41:10,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543442885] [2021-04-28 23:41:10,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:10,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:41:10,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299058971] [2021-04-28 23:41:10,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:41:10,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:10,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:41:10,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:41:10,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 167 [2021-04-28 23:41:10,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 49 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:10,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 167 [2021-04-28 23:41:10,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:10,195 INFO L129 PetriNetUnfolder]: 9/89 cut-off events. [2021-04-28 23:41:10,195 INFO L130 PetriNetUnfolder]: For 71/108 co-relation queries the response was YES. [2021-04-28 23:41:10,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 89 events. 9/89 cut-off events. For 71/108 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 413 event pairs, 0 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 203. Up to 23 conditions per place. [2021-04-28 23:41:10,197 INFO L132 encePairwiseOnDemand]: 161/167 looper letters, 8 selfloop transitions, 10 changer transitions 0/51 dead transitions. [2021-04-28 23:41:10,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 51 transitions, 258 flow [2021-04-28 23:41:10,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:41:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:41:10,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-04-28 23:41:10,200 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6811377245508982 [2021-04-28 23:41:10,200 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-04-28 23:41:10,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-04-28 23:41:10,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:10,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-04-28 23:41:10,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,205 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 23:41:10,205 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 23:41:10,206 INFO L185 Difference]: Start difference. First operand has 58 places, 49 transitions, 208 flow. Second operand 4 states and 455 transitions. [2021-04-28 23:41:10,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 51 transitions, 258 flow [2021-04-28 23:41:10,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 256 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 23:41:10,210 INFO L241 Difference]: Finished difference. Result has 62 places, 49 transitions, 231 flow [2021-04-28 23:41:10,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2021-04-28 23:41:10,211 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -16 predicate places. [2021-04-28 23:41:10,211 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:10,211 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 49 transitions, 231 flow [2021-04-28 23:41:10,212 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 49 transitions, 231 flow [2021-04-28 23:41:10,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 49 transitions, 231 flow [2021-04-28 23:41:10,227 INFO L129 PetriNetUnfolder]: 9/101 cut-off events. [2021-04-28 23:41:10,227 INFO L130 PetriNetUnfolder]: For 71/76 co-relation queries the response was YES. [2021-04-28 23:41:10,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 101 events. 9/101 cut-off events. For 71/76 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 531 event pairs, 1 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 207. Up to 23 conditions per place. [2021-04-28 23:41:10,231 INFO L146 LiptonReduction]: Number of co-enabled transitions 1116 [2021-04-28 23:41:10,246 INFO L158 LiptonReduction]: Checked pairs total: 418 [2021-04-28 23:41:10,246 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:10,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-28 23:41:10,248 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 231 flow [2021-04-28 23:41:10,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,249 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:10,249 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:10,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:41:10,250 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:10,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:10,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1280896209, now seen corresponding path program 1 times [2021-04-28 23:41:10,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:10,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223075254] [2021-04-28 23:41:10,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:10,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:10,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:10,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:10,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:10,313 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:10,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:10,324 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 23:41:10,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223075254] [2021-04-28 23:41:10,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:10,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:41:10,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461750475] [2021-04-28 23:41:10,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:41:10,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:10,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:41:10,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:41:10,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 167 [2021-04-28 23:41:10,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 49 transitions, 231 flow. Second operand has 5 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:10,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 167 [2021-04-28 23:41:10,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:10,378 INFO L129 PetriNetUnfolder]: 14/140 cut-off events. [2021-04-28 23:41:10,378 INFO L130 PetriNetUnfolder]: For 185/245 co-relation queries the response was YES. [2021-04-28 23:41:10,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 140 events. 14/140 cut-off events. For 185/245 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 850 event pairs, 1 based on Foata normal form. 10/91 useless extension candidates. Maximal degree in co-relation 321. Up to 28 conditions per place. [2021-04-28 23:41:10,380 INFO L132 encePairwiseOnDemand]: 162/167 looper letters, 11 selfloop transitions, 5 changer transitions 12/56 dead transitions. [2021-04-28 23:41:10,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 56 transitions, 349 flow [2021-04-28 23:41:10,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:41:10,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:41:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 549 transitions. [2021-04-28 23:41:10,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6574850299401198 [2021-04-28 23:41:10,384 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 549 transitions. [2021-04-28 23:41:10,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 549 transitions. [2021-04-28 23:41:10,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:10,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 549 transitions. [2021-04-28 23:41:10,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,390 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 23:41:10,392 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 23:41:10,392 INFO L185 Difference]: Start difference. First operand has 62 places, 49 transitions, 231 flow. Second operand 5 states and 549 transitions. [2021-04-28 23:41:10,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 56 transitions, 349 flow [2021-04-28 23:41:10,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 56 transitions, 317 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:41:10,397 INFO L241 Difference]: Finished difference. Result has 65 places, 41 transitions, 184 flow [2021-04-28 23:41:10,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=184, PETRI_PLACES=65, PETRI_TRANSITIONS=41} [2021-04-28 23:41:10,397 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -13 predicate places. [2021-04-28 23:41:10,397 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:10,398 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 41 transitions, 184 flow [2021-04-28 23:41:10,398 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 41 transitions, 184 flow [2021-04-28 23:41:10,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 41 transitions, 184 flow [2021-04-28 23:41:10,408 INFO L129 PetriNetUnfolder]: 3/71 cut-off events. [2021-04-28 23:41:10,409 INFO L130 PetriNetUnfolder]: For 60/62 co-relation queries the response was YES. [2021-04-28 23:41:10,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 71 events. 3/71 cut-off events. For 60/62 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 313 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 146. Up to 13 conditions per place. [2021-04-28 23:41:10,412 INFO L146 LiptonReduction]: Number of co-enabled transitions 780 [2021-04-28 23:41:10,435 INFO L158 LiptonReduction]: Checked pairs total: 160 [2021-04-28 23:41:10,435 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:10,436 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-04-28 23:41:10,437 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 41 transitions, 184 flow [2021-04-28 23:41:10,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,438 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:10,438 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:10,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:41:10,438 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:10,439 INFO L82 PathProgramCache]: Analyzing trace with hash -203216687, now seen corresponding path program 1 times [2021-04-28 23:41:10,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:10,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590339961] [2021-04-28 23:41:10,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:10,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:10,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:10,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:10,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:10,495 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:10,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:10,506 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 23:41:10,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590339961] [2021-04-28 23:41:10,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:10,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:41:10,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314833247] [2021-04-28 23:41:10,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:41:10,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:10,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:41:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:41:10,510 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:41:10,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 41 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:10,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:41:10,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:10,547 INFO L129 PetriNetUnfolder]: 4/76 cut-off events. [2021-04-28 23:41:10,547 INFO L130 PetriNetUnfolder]: For 153/168 co-relation queries the response was YES. [2021-04-28 23:41:10,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 76 events. 4/76 cut-off events. For 153/168 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 318 event pairs, 1 based on Foata normal form. 5/48 useless extension candidates. Maximal degree in co-relation 177. Up to 14 conditions per place. [2021-04-28 23:41:10,548 INFO L132 encePairwiseOnDemand]: 162/167 looper letters, 3 selfloop transitions, 4 changer transitions 21/44 dead transitions. [2021-04-28 23:41:10,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 44 transitions, 247 flow [2021-04-28 23:41:10,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:41:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:41:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2021-04-28 23:41:10,551 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6610778443113773 [2021-04-28 23:41:10,551 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2021-04-28 23:41:10,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2021-04-28 23:41:10,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:10,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2021-04-28 23:41:10,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,556 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 23:41:10,557 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 23:41:10,557 INFO L185 Difference]: Start difference. First operand has 61 places, 41 transitions, 184 flow. Second operand 5 states and 552 transitions. [2021-04-28 23:41:10,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 44 transitions, 247 flow [2021-04-28 23:41:10,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 44 transitions, 210 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-04-28 23:41:10,560 INFO L241 Difference]: Finished difference. Result has 60 places, 23 transitions, 104 flow [2021-04-28 23:41:10,560 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=60, PETRI_TRANSITIONS=23} [2021-04-28 23:41:10,560 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -18 predicate places. [2021-04-28 23:41:10,560 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:10,561 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 23 transitions, 104 flow [2021-04-28 23:41:10,561 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 23 transitions, 104 flow [2021-04-28 23:41:10,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 23 transitions, 104 flow [2021-04-28 23:41:10,566 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-28 23:41:10,566 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-04-28 23:41:10,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 27 events. 0/27 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-04-28 23:41:10,567 INFO L146 LiptonReduction]: Number of co-enabled transitions 192 [2021-04-28 23:41:10,597 INFO L158 LiptonReduction]: Checked pairs total: 63 [2021-04-28 23:41:10,598 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:10,598 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-28 23:41:10,600 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 23 transitions, 104 flow [2021-04-28 23:41:10,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,601 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:10,601 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:10,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:41:10,601 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:10,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:10,602 INFO L82 PathProgramCache]: Analyzing trace with hash 509042451, now seen corresponding path program 1 times [2021-04-28 23:41:10,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:10,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051028197] [2021-04-28 23:41:10,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:10,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:10,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:10,663 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:41:10,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:10,673 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 23:41:10,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051028197] [2021-04-28 23:41:10,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:10,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:41:10,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280606362] [2021-04-28 23:41:10,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:41:10,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:10,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:41:10,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:41:10,677 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 167 [2021-04-28 23:41:10,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 23 transitions, 104 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 23:41:10,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:10,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 167 [2021-04-28 23:41:10,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:10,824 INFO L129 PetriNetUnfolder]: 369/646 cut-off events. [2021-04-28 23:41:10,825 INFO L130 PetriNetUnfolder]: For 524/633 co-relation queries the response was YES. [2021-04-28 23:41:10,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 646 events. 369/646 cut-off events. For 524/633 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 3635 event pairs, 171 based on Foata normal form. 15/270 useless extension candidates. Maximal degree in co-relation 1450. Up to 475 conditions per place. [2021-04-28 23:41:10,829 INFO L132 encePairwiseOnDemand]: 155/167 looper letters, 11 selfloop transitions, 7 changer transitions 22/51 dead transitions. [2021-04-28 23:41:10,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 240 flow [2021-04-28 23:41:10,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:41:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:41:10,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 567 transitions. [2021-04-28 23:41:10,833 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6790419161676646 [2021-04-28 23:41:10,833 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 567 transitions. [2021-04-28 23:41:10,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 567 transitions. [2021-04-28 23:41:10,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:10,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 567 transitions. [2021-04-28 23:41:10,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:10,839 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 23:41:10,839 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 23:41:10,839 INFO L185 Difference]: Start difference. First operand has 48 places, 23 transitions, 104 flow. Second operand 5 states and 567 transitions. [2021-04-28 23:41:10,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 240 flow [2021-04-28 23:41:10,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 205 flow, removed 5 selfloop flow, removed 10 redundant places. [2021-04-28 23:41:10,842 INFO L241 Difference]: Finished difference. Result has 45 places, 29 transitions, 144 flow [2021-04-28 23:41:10,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=45, PETRI_TRANSITIONS=29} [2021-04-28 23:41:10,843 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -33 predicate places. [2021-04-28 23:41:10,843 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:10,843 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 29 transitions, 144 flow [2021-04-28 23:41:10,844 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 29 transitions, 144 flow [2021-04-28 23:41:10,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 29 transitions, 144 flow [2021-04-28 23:41:10,891 INFO L129 PetriNetUnfolder]: 252/459 cut-off events. [2021-04-28 23:41:10,891 INFO L130 PetriNetUnfolder]: For 198/405 co-relation queries the response was YES. [2021-04-28 23:41:10,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 459 events. 252/459 cut-off events. For 198/405 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 2505 event pairs, 144 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 1363. Up to 418 conditions per place. [2021-04-28 23:41:10,897 INFO L146 LiptonReduction]: Number of co-enabled transitions 152 [2021-04-28 23:41:11,104 INFO L158 LiptonReduction]: Checked pairs total: 69 [2021-04-28 23:41:11,104 INFO L160 LiptonReduction]: Total number of compositions: 7 [2021-04-28 23:41:11,105 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 262 [2021-04-28 23:41:11,106 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 30 transitions, 166 flow [2021-04-28 23:41:11,107 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 23:41:11,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:11,107 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:11,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:41:11,108 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:11,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:11,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1399316206, now seen corresponding path program 1 times [2021-04-28 23:41:11,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:11,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068046828] [2021-04-28 23:41:11,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:11,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:11,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:11,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:11,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:11,168 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:41:11,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:11,179 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 23:41:11,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068046828] [2021-04-28 23:41:11,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:11,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:41:11,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469186161] [2021-04-28 23:41:11,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:41:11,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:11,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:41:11,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:41:11,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 174 [2021-04-28 23:41:11,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 30 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:11,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 174 [2021-04-28 23:41:11,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:11,334 INFO L129 PetriNetUnfolder]: 207/488 cut-off events. [2021-04-28 23:41:11,335 INFO L130 PetriNetUnfolder]: For 423/576 co-relation queries the response was YES. [2021-04-28 23:41:11,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2520 conditions, 488 events. 207/488 cut-off events. For 423/576 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 3201 event pairs, 27 based on Foata normal form. 27/247 useless extension candidates. Maximal degree in co-relation 2506. Up to 442 conditions per place. [2021-04-28 23:41:11,338 INFO L132 encePairwiseOnDemand]: 159/174 looper letters, 5 selfloop transitions, 13 changer transitions 30/58 dead transitions. [2021-04-28 23:41:11,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 58 transitions, 469 flow [2021-04-28 23:41:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:41:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:41:11,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 684 transitions. [2021-04-28 23:41:11,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2021-04-28 23:41:11,343 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 684 transitions. [2021-04-28 23:41:11,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 684 transitions. [2021-04-28 23:41:11,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:11,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 684 transitions. [2021-04-28 23:41:11,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,351 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,351 INFO L185 Difference]: Start difference. First operand has 44 places, 30 transitions, 166 flow. Second operand 6 states and 684 transitions. [2021-04-28 23:41:11,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 58 transitions, 469 flow [2021-04-28 23:41:11,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 460 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 23:41:11,357 INFO L241 Difference]: Finished difference. Result has 50 places, 28 transitions, 207 flow [2021-04-28 23:41:11,357 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=207, PETRI_PLACES=50, PETRI_TRANSITIONS=28} [2021-04-28 23:41:11,357 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -28 predicate places. [2021-04-28 23:41:11,357 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:11,358 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 28 transitions, 207 flow [2021-04-28 23:41:11,358 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 28 transitions, 207 flow [2021-04-28 23:41:11,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 28 transitions, 207 flow [2021-04-28 23:41:11,382 INFO L129 PetriNetUnfolder]: 36/179 cut-off events. [2021-04-28 23:41:11,382 INFO L130 PetriNetUnfolder]: For 364/433 co-relation queries the response was YES. [2021-04-28 23:41:11,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 179 events. 36/179 cut-off events. For 364/433 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 1286 event pairs, 27 based on Foata normal form. 2/104 useless extension candidates. Maximal degree in co-relation 1095. Up to 142 conditions per place. [2021-04-28 23:41:11,385 INFO L146 LiptonReduction]: Number of co-enabled transitions 120 [2021-04-28 23:41:11,715 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-28 23:41:11,715 INFO L160 LiptonReduction]: Total number of compositions: 6 [2021-04-28 23:41:11,716 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 359 [2021-04-28 23:41:11,717 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 28 transitions, 219 flow [2021-04-28 23:41:11,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,718 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:11,718 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:11,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:41:11,719 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:11,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:11,719 INFO L82 PathProgramCache]: Analyzing trace with hash -347543601, now seen corresponding path program 1 times [2021-04-28 23:41:11,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:11,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853903276] [2021-04-28 23:41:11,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:11,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:11,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:11,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:11,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:11,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:11,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:11,800 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:41:11,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:11,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:11,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853903276] [2021-04-28 23:41:11,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:11,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:41:11,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993778925] [2021-04-28 23:41:11,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:41:11,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:11,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:41:11,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:41:11,818 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 180 [2021-04-28 23:41:11,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 28 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:11,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 180 [2021-04-28 23:41:11,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:11,928 INFO L129 PetriNetUnfolder]: 9/158 cut-off events. [2021-04-28 23:41:11,929 INFO L130 PetriNetUnfolder]: For 335/389 co-relation queries the response was YES. [2021-04-28 23:41:11,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 158 events. 9/158 cut-off events. For 335/389 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 1319 event pairs, 0 based on Foata normal form. 13/114 useless extension candidates. Maximal degree in co-relation 970. Up to 115 conditions per place. [2021-04-28 23:41:11,930 INFO L132 encePairwiseOnDemand]: 162/180 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2021-04-28 23:41:11,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 31 transitions, 300 flow [2021-04-28 23:41:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:41:11,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:41:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 764 transitions. [2021-04-28 23:41:11,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6063492063492063 [2021-04-28 23:41:11,934 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 764 transitions. [2021-04-28 23:41:11,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 764 transitions. [2021-04-28 23:41:11,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:11,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 764 transitions. [2021-04-28 23:41:11,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,942 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 180.0) internal successors, (1440), 8 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,942 INFO L185 Difference]: Start difference. First operand has 46 places, 28 transitions, 219 flow. Second operand 7 states and 764 transitions. [2021-04-28 23:41:11,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 31 transitions, 300 flow [2021-04-28 23:41:11,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 31 transitions, 227 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-04-28 23:41:11,946 INFO L241 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2021-04-28 23:41:11,946 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2021-04-28 23:41:11,947 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -33 predicate places. [2021-04-28 23:41:11,947 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:11,947 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 0 transitions, 0 flow [2021-04-28 23:41:11,947 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 0 transitions, 0 flow [2021-04-28 23:41:11,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:41:11,948 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:41:11,948 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:11,948 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 23:41:11,948 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:41:11,948 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:41:11,948 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:11,948 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-28 23:41:11,950 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:41:11,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:11,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:41:11,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:41:11 BasicIcfg [2021-04-28 23:41:11,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:41:11,958 INFO L168 Benchmark]: Toolchain (without parser) took 16803.41 ms. Allocated memory was 302.0 MB in the beginning and 440.4 MB in the end (delta: 138.4 MB). Free memory was 277.3 MB in the beginning and 364.3 MB in the end (delta: -87.0 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:11,959 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:41:11,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 970.64 ms. Allocated memory is still 302.0 MB. Free memory was 274.1 MB in the beginning and 282.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:11,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.62 ms. Allocated memory is still 302.0 MB. Free memory was 282.1 MB in the beginning and 280.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:41:11,960 INFO L168 Benchmark]: Boogie Preprocessor took 68.34 ms. Allocated memory is still 302.0 MB. Free memory was 280.2 MB in the beginning and 278.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:11,961 INFO L168 Benchmark]: RCFGBuilder took 808.85 ms. Allocated memory is still 302.0 MB. Free memory was 278.1 MB in the beginning and 255.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:11,962 INFO L168 Benchmark]: TraceAbstraction took 14796.88 ms. Allocated memory was 302.0 MB in the beginning and 440.4 MB in the end (delta: 138.4 MB). Free memory was 255.1 MB in the beginning and 364.3 MB in the end (delta: -109.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:11,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 970.64 ms. Allocated memory is still 302.0 MB. Free memory was 274.1 MB in the beginning and 282.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 93.62 ms. Allocated memory is still 302.0 MB. Free memory was 282.1 MB in the beginning and 280.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 68.34 ms. Allocated memory is still 302.0 MB. Free memory was 280.2 MB in the beginning and 278.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 808.85 ms. Allocated memory is still 302.0 MB. Free memory was 278.1 MB in the beginning and 255.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14796.88 ms. Allocated memory was 302.0 MB in the beginning and 440.4 MB in the end (delta: 138.4 MB). Free memory was 255.1 MB in the beginning and 364.3 MB in the end (delta: -109.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11378.2ms, 69 PlacesBefore, 78 PlacesAfterwards, 60 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 92 TotalNumberOfCompositions, 6680 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2095, positive: 1893, positive conditional: 1893, positive unconditional: 0, negative: 202, negative conditional: 202, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 938, positive: 883, positive conditional: 0, positive unconditional: 883, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 938, positive: 883, positive conditional: 0, positive unconditional: 883, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 938, positive: 853, positive conditional: 0, positive unconditional: 853, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 85, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 486, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 316, negative conditional: 0, negative unconditional: 316, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2095, positive: 1010, positive conditional: 1010, positive unconditional: 0, negative: 147, negative conditional: 147, negative unconditional: 0, unknown: 938, unknown conditional: 938, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 933, Positive cache size: 878, Positive conditional cache size: 878, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.3ms, 78 PlacesBefore, 49 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 914 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 393 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 108, positive conditional: 108, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 17, positive conditional: 1, positive unconditional: 16, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19, positive: 17, positive conditional: 1, positive unconditional: 16, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 9, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 121, positive: 91, positive conditional: 91, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 952, Positive cache size: 895, Positive conditional cache size: 895, Positive unconditional cache size: 0, Negative cache size: 57, Negative conditional cache size: 57, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.8ms, 54 PlacesBefore, 54 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 976 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 401 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119, positive: 106, positive conditional: 106, positive unconditional: 0, negative: 13, negative conditional: 13, 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: 1, negative unconditional: 0, 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: 1, negative unconditional: 0, 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: 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: 119, positive: 103, positive conditional: 103, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 956, Positive cache size: 898, Positive conditional cache size: 898, Positive unconditional cache size: 0, Negative cache size: 58, Negative conditional cache size: 58, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.4ms, 58 PlacesBefore, 58 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1118 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 418 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 142, positive: 129, positive conditional: 129, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 3, positive unconditional: 7, 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: 11, positive: 10, positive conditional: 3, positive unconditional: 7, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 142, positive: 119, positive conditional: 119, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 967, Positive cache size: 908, Positive conditional cache size: 908, Positive unconditional cache size: 0, Negative cache size: 59, Negative conditional cache size: 59, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.2ms, 62 PlacesBefore, 62 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 418 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 88, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 88, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 968, Positive cache size: 908, Positive conditional cache size: 908, Positive unconditional cache size: 0, Negative cache size: 60, Negative conditional cache size: 60, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.7ms, 65 PlacesBefore, 61 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 780 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 4, 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: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 972, Positive cache size: 909, Positive conditional cache size: 909, Positive unconditional cache size: 0, Negative cache size: 63, Negative conditional cache size: 63, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.1ms, 60 PlacesBefore, 48 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 63 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 981, Positive cache size: 915, Positive conditional cache size: 915, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 260.7ms, 45 PlacesBefore, 44 PlacesAfterwards, 29 TransitionsBefore, 30 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 69 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 69, positive conditional: 69, 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: 37, positive: 37, positive conditional: 30, positive unconditional: 7, 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: 37, positive: 37, positive conditional: 30, positive unconditional: 7, 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: 37, positive: 37, positive conditional: 0, positive unconditional: 37, 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: 69, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 37, unknown conditional: 37, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1018, Positive cache size: 952, Positive conditional cache size: 952, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 357.4ms, 50 PlacesBefore, 46 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, 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: 24, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 24, unknown conditional: 24, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1042, Positive cache size: 976, Positive conditional cache size: 976, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 45 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): 1042, Positive cache size: 976, Positive conditional cache size: 976, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, 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, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14593.7ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1071.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11545.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 51 SDslu, 31 SDs, 0 SdLazy, 260 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 254.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 174.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=4, InterpolantAutomatonStates: 43, 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: 26.2ms SsaConstructionTime, 187.2ms SatisfiabilityAnalysisTime, 634.6ms InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 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...