/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 21:33:10,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 21:33:10,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 21:33:10,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 21:33:10,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 21:33:10,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 21:33:10,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 21:33:10,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 21:33:10,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 21:33:10,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 21:33:10,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 21:33:10,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 21:33:10,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 21:33:10,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 21:33:10,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 21:33:10,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 21:33:10,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 21:33:10,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 21:33:10,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 21:33:10,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 21:33:10,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 21:33:10,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 21:33:10,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 21:33:10,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 21:33:10,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 21:33:10,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 21:33:10,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 21:33:10,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 21:33:10,756 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-SemanticLbe.epf [2021-06-10 21:33:10,782 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 21:33:10,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 21:33:10,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 21:33:10,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 21:33:10,784 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 21:33:10,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 21:33:10,785 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 21:33:10,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 21:33:10,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 21:33:10,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 21:33:10,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 21:33:10,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 21:33:10,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 21:33:10,786 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 21:33:10,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 21:33:10,786 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 21:33:10,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 21:33:10,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 21:33:10,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 21:33:10,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 21:33:10,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 21:33:10,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:33:10,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 21:33:10,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 21:33:10,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 21:33:10,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 21:33:10,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 21:33:10,788 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 21:33:10,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 21:33:11,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 21:33:11,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 21:33:11,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 21:33:11,063 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 21:33:11,063 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 21:33:11,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i [2021-06-10 21:33:11,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4676d8a39/cd38246ea927405fb25a56814017cce0/FLAG682ee58c9 [2021-06-10 21:33:11,535 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 21:33:11,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i [2021-06-10 21:33:11,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4676d8a39/cd38246ea927405fb25a56814017cce0/FLAG682ee58c9 [2021-06-10 21:33:11,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4676d8a39/cd38246ea927405fb25a56814017cce0 [2021-06-10 21:33:11,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 21:33:11,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 21:33:11,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 21:33:11,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 21:33:11,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 21:33:11,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123f9355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11, skipping insertion in model container [2021-06-10 21:33:11,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 21:33:11,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 21:33:11,726 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/safe037_power.oepc.i[952,965] [2021-06-10 21:33:11,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:33:11,849 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 21:33:11,855 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/safe037_power.oepc.i[952,965] [2021-06-10 21:33:11,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:33:11,917 INFO L208 MainTranslator]: Completed translation [2021-06-10 21:33:11,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11 WrapperNode [2021-06-10 21:33:11,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 21:33:11,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 21:33:11,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 21:33:11,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 21:33:11,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 21:33:11,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 21:33:11,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 21:33:11,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 21:33:11,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (1/1) ... [2021-06-10 21:33:11,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 21:33:11,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 21:33:11,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 21:33:11,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 21:33:11,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (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 [2021-06-10 21:33:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 21:33:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 21:33:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 21:33:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 21:33:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 21:33:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 21:33:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 21:33:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 21:33:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 21:33:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 21:33:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 21:33:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 21:33:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 21:33:12,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 21:33:12,027 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 21:33:12,277 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 21:33:12,277 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-10 21:33:12,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:33:12 BoogieIcfgContainer [2021-06-10 21:33:12,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 21:33:12,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 21:33:12,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 21:33:12,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 21:33:12,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 09:33:11" (1/3) ... [2021-06-10 21:33:12,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b90b723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:33:12, skipping insertion in model container [2021-06-10 21:33:12,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:33:11" (2/3) ... [2021-06-10 21:33:12,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b90b723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:33:12, skipping insertion in model container [2021-06-10 21:33:12,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:33:12" (3/3) ... [2021-06-10 21:33:12,283 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_power.oepc.i [2021-06-10 21:33:12,287 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 21:33:12,291 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 21:33:12,291 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 21:33:12,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,317 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,317 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,318 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,318 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,319 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,322 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,322 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,323 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,323 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,326 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:33:12,337 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 21:33:12,349 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-10 21:33:12,368 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 21:33:12,368 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 21:33:12,369 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 21:33:12,369 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 21:33:12,369 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 21:33:12,369 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 21:33:12,369 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 21:33:12,369 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 21:33:12,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-06-10 21:33:12,421 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-06-10 21:33:12,421 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:33:12,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-10 21:33:12,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-06-10 21:33:12,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-06-10 21:33:12,435 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 21:33:12,443 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-06-10 21:33:12,445 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-06-10 21:33:12,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-06-10 21:33:12,455 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-06-10 21:33:12,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:33:12,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-10 21:33:12,457 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-10 21:33:12,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:33:12,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:33:12,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:33:12,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:33:12,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:33:12,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:33:12,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:12,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:33:12,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:12,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:33:12,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:33:13,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:33:13,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:33:13,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:33:13,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:33:13,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 21:33:13,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:33:13,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,273 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-10 21:33:13,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-10 21:33:13,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:33:13,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:33:13,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:33:13,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:13,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:13,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:14,194 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-06-10 21:33:14,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:14,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:33:14,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:14,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:33:14,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 21:33:14,400 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-10 21:33:14,609 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-06-10 21:33:14,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:14,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:33:14,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:14,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:33:14,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:33:14,694 INFO L163 LiptonReduction]: Checked pairs total: 1678 [2021-06-10 21:33:14,694 INFO L165 LiptonReduction]: Total number of compositions: 47 [2021-06-10 21:33:14,696 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2261 [2021-06-10 21:33:14,701 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-06-10 21:33:14,701 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:33:14,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:33:14,702 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:33:14,702 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:33:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:33:14,705 INFO L82 PathProgramCache]: Analyzing trace with hash 708756172, now seen corresponding path program 1 times [2021-06-10 21:33:14,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:33:14,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704427103] [2021-06-10 21:33:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:33:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:33:14,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:14,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:14,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:14,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 21:33:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:33:14,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704427103] [2021-06-10 21:33:14,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:33:14,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:33:14,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784994168] [2021-06-10 21:33:14,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:33:14,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:33:14,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:33:14,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:33:14,853 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 123 [2021-06-10 21:33:14,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:14,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:33:14,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 123 [2021-06-10 21:33:14,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:33:14,899 INFO L129 PetriNetUnfolder]: 28/69 cut-off events. [2021-06-10 21:33:14,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:33:14,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 69 events. 28/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 218 event pairs, 12 based on Foata normal form. 8/76 useless extension candidates. Maximal degree in co-relation 128. Up to 45 conditions per place. [2021-06-10 21:33:14,902 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 5 selfloop transitions, 4 changer transitions 7/27 dead transitions. [2021-06-10 21:33:14,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 95 flow [2021-06-10 21:33:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:33:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:33:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 483 transitions. [2021-06-10 21:33:14,914 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7853658536585366 [2021-06-10 21:33:14,914 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 483 transitions. [2021-06-10 21:33:14,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 483 transitions. [2021-06-10 21:33:14,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:33:14,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 483 transitions. [2021-06-10 21:33:14,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:14,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:14,927 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:14,928 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 5 states and 483 transitions. [2021-06-10 21:33:14,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 95 flow [2021-06-10 21:33:14,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 92 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 21:33:14,931 INFO L241 Difference]: Finished difference. Result has 31 places, 20 transitions, 76 flow [2021-06-10 21:33:14,932 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2021-06-10 21:33:14,932 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2021-06-10 21:33:14,932 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 76 flow [2021-06-10 21:33:14,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:14,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:33:14,933 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:33:14,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 21:33:14,933 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:33:14,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:33:14,936 INFO L82 PathProgramCache]: Analyzing trace with hash 803488543, now seen corresponding path program 1 times [2021-06-10 21:33:14,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:33:14,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408330766] [2021-06-10 21:33:14,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:33:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:33:15,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 21:33:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:33:15,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408330766] [2021-06-10 21:33:15,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:33:15,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:33:15,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51922970] [2021-06-10 21:33:15,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:33:15,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:33:15,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:33:15,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:33:15,011 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 123 [2021-06-10 21:33:15,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:33:15,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 123 [2021-06-10 21:33:15,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:33:15,054 INFO L129 PetriNetUnfolder]: 16/50 cut-off events. [2021-06-10 21:33:15,055 INFO L130 PetriNetUnfolder]: For 39/48 co-relation queries the response was YES. [2021-06-10 21:33:15,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 50 events. 16/50 cut-off events. For 39/48 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 123 event pairs, 2 based on Foata normal form. 12/61 useless extension candidates. Maximal degree in co-relation 159. Up to 35 conditions per place. [2021-06-10 21:33:15,055 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 5 selfloop transitions, 7 changer transitions 7/30 dead transitions. [2021-06-10 21:33:15,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 172 flow [2021-06-10 21:33:15,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:33:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:33:15,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 579 transitions. [2021-06-10 21:33:15,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7845528455284553 [2021-06-10 21:33:15,057 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 579 transitions. [2021-06-10 21:33:15,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 579 transitions. [2021-06-10 21:33:15,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:33:15,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 579 transitions. [2021-06-10 21:33:15,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,060 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,060 INFO L185 Difference]: Start difference. First operand has 31 places, 20 transitions, 76 flow. Second operand 6 states and 579 transitions. [2021-06-10 21:33:15,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 172 flow [2021-06-10 21:33:15,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 166 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-10 21:33:15,062 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 126 flow [2021-06-10 21:33:15,062 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2021-06-10 21:33:15,062 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-06-10 21:33:15,063 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 126 flow [2021-06-10 21:33:15,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,063 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:33:15,063 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:33:15,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 21:33:15,063 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:33:15,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:33:15,063 INFO L82 PathProgramCache]: Analyzing trace with hash -873067676, now seen corresponding path program 1 times [2021-06-10 21:33:15,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:33:15,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185876123] [2021-06-10 21:33:15,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:33:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:33:15,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 21:33:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:33:15,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185876123] [2021-06-10 21:33:15,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:33:15,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:33:15,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543520517] [2021-06-10 21:33:15,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:33:15,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:33:15,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:33:15,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:33:15,124 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 123 [2021-06-10 21:33:15,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:33:15,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 123 [2021-06-10 21:33:15,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:33:15,160 INFO L129 PetriNetUnfolder]: 7/32 cut-off events. [2021-06-10 21:33:15,160 INFO L130 PetriNetUnfolder]: For 74/94 co-relation queries the response was YES. [2021-06-10 21:33:15,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 32 events. 7/32 cut-off events. For 74/94 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 14/45 useless extension candidates. Maximal degree in co-relation 121. Up to 20 conditions per place. [2021-06-10 21:33:15,160 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 2 selfloop transitions, 10 changer transitions 4/27 dead transitions. [2021-06-10 21:33:15,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 194 flow [2021-06-10 21:33:15,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 21:33:15,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 21:33:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 669 transitions. [2021-06-10 21:33:15,162 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7770034843205574 [2021-06-10 21:33:15,162 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 669 transitions. [2021-06-10 21:33:15,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 669 transitions. [2021-06-10 21:33:15,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:33:15,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 669 transitions. [2021-06-10 21:33:15,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,165 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,165 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 126 flow. Second operand 7 states and 669 transitions. [2021-06-10 21:33:15,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 194 flow [2021-06-10 21:33:15,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 158 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-06-10 21:33:15,167 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 128 flow [2021-06-10 21:33:15,167 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=128, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2021-06-10 21:33:15,167 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2021-06-10 21:33:15,167 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 128 flow [2021-06-10 21:33:15,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:33:15,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:33:15,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 21:33:15,168 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:33:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:33:15,168 INFO L82 PathProgramCache]: Analyzing trace with hash 737404152, now seen corresponding path program 1 times [2021-06-10 21:33:15,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:33:15,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067025168] [2021-06-10 21:33:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:33:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:33:15,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:15,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:33:15,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067025168] [2021-06-10 21:33:15,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:33:15,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:33:15,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947769929] [2021-06-10 21:33:15,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:33:15,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:33:15,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:33:15,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:33:15,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 123 [2021-06-10 21:33:15,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:33:15,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 123 [2021-06-10 21:33:15,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:33:15,226 INFO L129 PetriNetUnfolder]: 10/41 cut-off events. [2021-06-10 21:33:15,226 INFO L130 PetriNetUnfolder]: For 73/78 co-relation queries the response was YES. [2021-06-10 21:33:15,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 41 events. 10/41 cut-off events. For 73/78 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 98 event pairs, 0 based on Foata normal form. 2/41 useless extension candidates. Maximal degree in co-relation 128. Up to 21 conditions per place. [2021-06-10 21:33:15,227 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 3 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2021-06-10 21:33:15,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 24 transitions, 140 flow [2021-06-10 21:33:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:33:15,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:33:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2021-06-10 21:33:15,228 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8008130081300813 [2021-06-10 21:33:15,228 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 394 transitions. [2021-06-10 21:33:15,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 394 transitions. [2021-06-10 21:33:15,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:33:15,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 394 transitions. [2021-06-10 21:33:15,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,231 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,231 INFO L185 Difference]: Start difference. First operand has 38 places, 23 transitions, 128 flow. Second operand 4 states and 394 transitions. [2021-06-10 21:33:15,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 24 transitions, 140 flow [2021-06-10 21:33:15,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 24 transitions, 102 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-06-10 21:33:15,234 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 97 flow [2021-06-10 21:33:15,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2021-06-10 21:33:15,234 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-06-10 21:33:15,234 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 97 flow [2021-06-10 21:33:15,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,234 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:33:15,234 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:33:15,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 21:33:15,234 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:33:15,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:33:15,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1415346138, now seen corresponding path program 2 times [2021-06-10 21:33:15,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:33:15,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080202455] [2021-06-10 21:33:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:33:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:33:15,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:15,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:33:15,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080202455] [2021-06-10 21:33:15,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:33:15,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:33:15,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024868541] [2021-06-10 21:33:15,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:33:15,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:33:15,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:33:15,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:33:15,279 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 123 [2021-06-10 21:33:15,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:33:15,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 123 [2021-06-10 21:33:15,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:33:15,291 INFO L129 PetriNetUnfolder]: 12/51 cut-off events. [2021-06-10 21:33:15,291 INFO L130 PetriNetUnfolder]: For 34/35 co-relation queries the response was YES. [2021-06-10 21:33:15,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 51 events. 12/51 cut-off events. For 34/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 145 event pairs, 0 based on Foata normal form. 2/51 useless extension candidates. Maximal degree in co-relation 125. Up to 19 conditions per place. [2021-06-10 21:33:15,292 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 3 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2021-06-10 21:33:15,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 24 transitions, 109 flow [2021-06-10 21:33:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:33:15,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:33:15,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2021-06-10 21:33:15,293 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8008130081300813 [2021-06-10 21:33:15,293 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 394 transitions. [2021-06-10 21:33:15,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 394 transitions. [2021-06-10 21:33:15,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:33:15,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 394 transitions. [2021-06-10 21:33:15,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,294 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,295 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 97 flow. Second operand 4 states and 394 transitions. [2021-06-10 21:33:15,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 24 transitions, 109 flow [2021-06-10 21:33:15,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 24 transitions, 106 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-10 21:33:15,296 INFO L241 Difference]: Finished difference. Result has 37 places, 23 transitions, 101 flow [2021-06-10 21:33:15,296 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2021-06-10 21:33:15,296 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2021-06-10 21:33:15,296 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 101 flow [2021-06-10 21:33:15,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,296 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:33:15,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:33:15,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 21:33:15,296 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:33:15,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:33:15,297 INFO L82 PathProgramCache]: Analyzing trace with hash -581106168, now seen corresponding path program 3 times [2021-06-10 21:33:15,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:33:15,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119080119] [2021-06-10 21:33:15,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:33:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:33:15,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:33:15,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:33:15,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:33:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:33:15,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119080119] [2021-06-10 21:33:15,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:33:15,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:33:15,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497804363] [2021-06-10 21:33:15,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:33:15,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:33:15,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:33:15,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:33:15,332 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 123 [2021-06-10 21:33:15,332 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:33:15,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 123 [2021-06-10 21:33:15,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:33:15,343 INFO L129 PetriNetUnfolder]: 9/51 cut-off events. [2021-06-10 21:33:15,344 INFO L130 PetriNetUnfolder]: For 30/31 co-relation queries the response was YES. [2021-06-10 21:33:15,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 51 events. 9/51 cut-off events. For 30/31 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 156 event pairs, 0 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 129. Up to 16 conditions per place. [2021-06-10 21:33:15,345 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2021-06-10 21:33:15,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 23 transitions, 107 flow [2021-06-10 21:33:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:33:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:33:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 393 transitions. [2021-06-10 21:33:15,346 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7987804878048781 [2021-06-10 21:33:15,346 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 393 transitions. [2021-06-10 21:33:15,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 393 transitions. [2021-06-10 21:33:15,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:33:15,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 393 transitions. [2021-06-10 21:33:15,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,349 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,349 INFO L185 Difference]: Start difference. First operand has 37 places, 23 transitions, 101 flow. Second operand 4 states and 393 transitions. [2021-06-10 21:33:15,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 23 transitions, 107 flow [2021-06-10 21:33:15,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 23 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 21:33:15,350 INFO L241 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2021-06-10 21:33:15,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2021-06-10 21:33:15,350 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2021-06-10 21:33:15,351 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2021-06-10 21:33:15,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:33:15,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 21:33:15,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 09:33:15 BasicIcfg [2021-06-10 21:33:15,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 21:33:15,357 INFO L168 Benchmark]: Toolchain (without parser) took 3798.56 ms. Allocated memory was 364.9 MB in the beginning and 463.5 MB in the end (delta: 98.6 MB). Free memory was 326.8 MB in the beginning and 213.3 MB in the end (delta: 113.5 MB). Peak memory consumption was 212.9 MB. Max. memory is 16.0 GB. [2021-06-10 21:33:15,358 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 364.9 MB. Free memory was 345.0 MB in the beginning and 344.9 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:33:15,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.38 ms. Allocated memory is still 364.9 MB. Free memory was 326.7 MB in the beginning and 326.5 MB in the end (delta: 149.6 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-10 21:33:15,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.38 ms. Allocated memory is still 364.9 MB. Free memory was 326.5 MB in the beginning and 324.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:33:15,361 INFO L168 Benchmark]: Boogie Preprocessor took 13.13 ms. Allocated memory is still 364.9 MB. Free memory was 324.4 MB in the beginning and 323.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:33:15,362 INFO L168 Benchmark]: RCFGBuilder took 308.29 ms. Allocated memory is still 364.9 MB. Free memory was 323.4 MB in the beginning and 298.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-10 21:33:15,362 INFO L168 Benchmark]: TraceAbstraction took 3073.83 ms. Allocated memory was 364.9 MB in the beginning and 463.5 MB in the end (delta: 98.6 MB). Free memory was 297.2 MB in the beginning and 213.3 MB in the end (delta: 83.9 MB). Peak memory consumption was 184.5 MB. Max. memory is 16.0 GB. [2021-06-10 21:33:15,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 364.9 MB. Free memory was 345.0 MB in the beginning and 344.9 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 359.38 ms. Allocated memory is still 364.9 MB. Free memory was 326.7 MB in the beginning and 326.5 MB in the end (delta: 149.6 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.38 ms. Allocated memory is still 364.9 MB. Free memory was 326.5 MB in the beginning and 324.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.13 ms. Allocated memory is still 364.9 MB. Free memory was 324.4 MB in the beginning and 323.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 308.29 ms. Allocated memory is still 364.9 MB. Free memory was 323.4 MB in the beginning and 298.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3073.83 ms. Allocated memory was 364.9 MB in the beginning and 463.5 MB in the end (delta: 98.6 MB). Free memory was 297.2 MB in the beginning and 213.3 MB in the end (delta: 83.9 MB). Peak memory consumption was 184.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2249.5ms, 70 PlacesBefore, 27 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 47 TotalNumberOfCompositions, 1678 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1020, positive: 932, positive conditional: 0, positive unconditional: 932, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 596, positive: 562, positive conditional: 0, positive unconditional: 562, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 596, positive: 562, positive conditional: 0, positive unconditional: 562, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 596, positive: 556, positive conditional: 0, positive unconditional: 556, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 114, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1020, positive: 370, positive conditional: 0, positive unconditional: 370, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 596, unknown conditional: 0, unknown unconditional: 596] , Statistics on independence cache: Total cache size (in pairs): 928, Positive cache size: 894, Positive conditional cache size: 0, Positive unconditional cache size: 894, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34 - 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, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2986.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 244.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2330.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 13 SDs, 0 SdLazy, 98 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 54.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=3, InterpolantAutomatonStates: 30, 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: 12.5ms SsaConstructionTime, 104.8ms SatisfiabilityAnalysisTime, 176.6ms InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...