/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:54:48,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:54:48,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:54:48,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:54:48,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:54:48,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:54:48,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:54:49,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:54:49,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:54:49,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:54:49,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:54:49,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:54:49,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:54:49,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:54:49,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:54:49,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:54:49,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:54:49,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:54:49,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:54:49,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:54:49,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:54:49,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:54:49,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:54:49,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:54:49,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 18:54:49,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 18:54:49,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 18:54:49,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 18:54:49,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 18:54:49,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 18:54:49,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:54:49,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:54:49,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:54:49,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:54:49,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:54:49,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:54:49,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:54:49,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:54:49,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:54:49,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:54:49,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:54:49,053 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-FA-SemanticLbe-MCR.epf [2019-12-27 18:54:49,089 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:54:49,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:54:49,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:54:49,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:54:49,095 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:54:49,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:54:49,095 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:54:49,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:54:49,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:54:49,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:54:49,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:54:49,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:54:49,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:54:49,096 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:54:49,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:54:49,099 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:54:49,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:54:49,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:54:49,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:54:49,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:54:49,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:54:49,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:54:49,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:54:49,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:54:49,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:54:49,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:54:49,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:54:49,102 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:54:49,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:54:49,102 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:54:49,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:54:49,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:54:49,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:54:49,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:54:49,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:54:49,411 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:54:49,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2019-12-27 18:54:49,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/751a5e3e5/efeb02ecfa6d41c9a4f40af3c0771c67/FLAG017db8e80 [2019-12-27 18:54:50,014 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:54:50,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2019-12-27 18:54:50,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/751a5e3e5/efeb02ecfa6d41c9a4f40af3c0771c67/FLAG017db8e80 [2019-12-27 18:54:50,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/751a5e3e5/efeb02ecfa6d41c9a4f40af3c0771c67 [2019-12-27 18:54:50,309 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:54:50,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:54:50,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:54:50,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:54:50,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:54:50,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:54:50" (1/1) ... [2019-12-27 18:54:50,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc25d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:50, skipping insertion in model container [2019-12-27 18:54:50,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:54:50" (1/1) ... [2019-12-27 18:54:50,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:54:50,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:54:50,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:54:50,917 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:54:50,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:54:51,044 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:54:51,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51 WrapperNode [2019-12-27 18:54:51,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:54:51,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:54:51,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:54:51,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:54:51,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:54:51,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:54:51,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:54:51,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:54:51,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (1/1) ... [2019-12-27 18:54:51,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:54:51,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:54:51,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:54:51,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:54:51,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (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 [2019-12-27 18:54:51,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:54:51,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:54:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-12-27 18:54:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-12-27 18:54:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:54:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:54:51,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:54:51,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:54:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:54:51,217 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:54:51,571 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:54:51,572 INFO L287 CfgBuilder]: Removed 11 assume(true) statements. [2019-12-27 18:54:51,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:54:51 BoogieIcfgContainer [2019-12-27 18:54:51,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:54:51,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:54:51,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:54:51,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:54:51,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:54:50" (1/3) ... [2019-12-27 18:54:51,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2af58e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:54:51, skipping insertion in model container [2019-12-27 18:54:51,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:51" (2/3) ... [2019-12-27 18:54:51,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2af58e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:54:51, skipping insertion in model container [2019-12-27 18:54:51,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:54:51" (3/3) ... [2019-12-27 18:54:51,583 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2019-12-27 18:54:51,593 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:54:51,593 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:54:51,600 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:54:51,601 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:54:51,626 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,626 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,626 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,627 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,627 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,627 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,628 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,628 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,628 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,628 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,629 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,629 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,629 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,630 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,634 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,635 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,636 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,636 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,636 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,636 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,637 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,637 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:51,655 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 18:54:51,671 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:54:51,672 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:54:51,672 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:54:51,672 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:54:51,672 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:54:51,673 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:54:51,673 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:54:51,673 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:54:51,685 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 43 transitions [2019-12-27 18:54:51,687 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 44 places, 43 transitions [2019-12-27 18:54:51,726 INFO L132 PetriNetUnfolder]: 3/52 cut-off events. [2019-12-27 18:54:51,726 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:54:51,734 INFO L76 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 52 events. 3/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs. 0/46 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2019-12-27 18:54:51,737 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 44 places, 43 transitions [2019-12-27 18:54:51,762 INFO L132 PetriNetUnfolder]: 3/52 cut-off events. [2019-12-27 18:54:51,762 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:54:51,764 INFO L76 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 52 events. 3/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs. 0/46 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2019-12-27 18:54:51,766 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 336 [2019-12-27 18:54:51,769 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:54:52,866 INFO L206 etLargeBlockEncoding]: Checked pairs total: 243 [2019-12-27 18:54:52,866 INFO L214 etLargeBlockEncoding]: Total number of compositions: 40 [2019-12-27 18:54:52,870 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-27 18:54:52,878 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-27 18:54:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-27 18:54:52,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 18:54:52,888 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:52,888 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 18:54:52,889 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:52,895 INFO L82 PathProgramCache]: Analyzing trace with hash 5761098, now seen corresponding path program 1 times [2019-12-27 18:54:52,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:52,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17858036] [2019-12-27 18:54:52,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:54:53,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17858036] [2019-12-27 18:54:53,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:53,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:54:53,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [326225216] [2019-12-27 18:54:53,083 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:53,088 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:53,101 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 5 states and 4 transitions. [2019-12-27 18:54:53,101 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:53,105 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:54:53,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:54:53,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:53,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:54:53,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:54:53,120 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-27 18:54:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:53,140 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-12-27 18:54:53,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:54:53,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-27 18:54:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:53,150 INFO L225 Difference]: With dead ends: 14 [2019-12-27 18:54:53,150 INFO L226 Difference]: Without dead ends: 11 [2019-12-27 18:54:53,152 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:54:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-27 18:54:53,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-27 18:54:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-27 18:54:53,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-27 18:54:53,190 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-27 18:54:53,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:53,190 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-27 18:54:53,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:54:53,191 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-27 18:54:53,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 18:54:53,192 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:53,192 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-27 18:54:53,193 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:53,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:53,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1241448245, now seen corresponding path program 1 times [2019-12-27 18:54:53,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:53,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476307726] [2019-12-27 18:54:53,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:54:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:54:53,310 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 18:54:53,310 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 18:54:53,312 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 18:54:53,312 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 18:54:53,326 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,328 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,329 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,329 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,329 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,329 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,330 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,330 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,330 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,330 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,332 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,333 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,334 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,334 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,335 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,336 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,336 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,336 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,336 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,337 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,337 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,337 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,337 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,338 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,338 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,339 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,339 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,339 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,340 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,340 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,340 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,341 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,341 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,341 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,341 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,342 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,343 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,344 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,344 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,344 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,345 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,345 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,345 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,345 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:53,347 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:54:53,347 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:54:53,348 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:54:53,348 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:54:53,348 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:54:53,348 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:54:53,348 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:54:53,348 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:54:53,349 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:54:53,352 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions [2019-12-27 18:54:53,352 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions [2019-12-27 18:54:53,377 INFO L132 PetriNetUnfolder]: 5/78 cut-off events. [2019-12-27 18:54:53,378 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 18:54:53,380 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 78 events. 5/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs. 0/68 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2019-12-27 18:54:53,385 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions [2019-12-27 18:54:53,406 INFO L132 PetriNetUnfolder]: 5/78 cut-off events. [2019-12-27 18:54:53,406 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 18:54:53,408 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 78 events. 5/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs. 0/68 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2019-12-27 18:54:53,411 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 984 [2019-12-27 18:54:53,411 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:54:54,397 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1323 [2019-12-27 18:54:54,398 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 18:54:54,398 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 16 transitions [2019-12-27 18:54:54,407 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 179 states. [2019-12-27 18:54:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-12-27 18:54:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 18:54:54,408 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:54,408 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 18:54:54,408 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:54,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:54,409 INFO L82 PathProgramCache]: Analyzing trace with hash 291015221, now seen corresponding path program 1 times [2019-12-27 18:54:54,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:54,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472352078] [2019-12-27 18:54:54,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:54:54,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472352078] [2019-12-27 18:54:54,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:54,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:54:54,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1980587108] [2019-12-27 18:54:54,454 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:54,455 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:54,456 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 6 states and 5 transitions. [2019-12-27 18:54:54,456 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:54,457 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:54:54,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:54:54,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:54,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:54:54,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:54:54,458 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 4 states. [2019-12-27 18:54:54,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:54,497 INFO L93 Difference]: Finished difference Result 132 states and 285 transitions. [2019-12-27 18:54:54,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:54:54,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 18:54:54,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:54,501 INFO L225 Difference]: With dead ends: 132 [2019-12-27 18:54:54,501 INFO L226 Difference]: Without dead ends: 123 [2019-12-27 18:54:54,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:54:54,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-12-27 18:54:54,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-12-27 18:54:54,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-27 18:54:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 265 transitions. [2019-12-27 18:54:54,520 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 265 transitions. Word has length 5 [2019-12-27 18:54:54,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:54,521 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 265 transitions. [2019-12-27 18:54:54,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:54:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 265 transitions. [2019-12-27 18:54:54,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:54:54,522 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:54,522 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2019-12-27 18:54:54,522 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:54,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:54,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2015404397, now seen corresponding path program 1 times [2019-12-27 18:54:54,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:54,523 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243424760] [2019-12-27 18:54:54,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:54:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:54:54,557 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 18:54:54,557 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 18:54:54,557 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 18:54:54,557 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 18:54:54,574 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,575 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,575 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,575 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,575 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,575 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,576 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,576 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,576 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,576 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,576 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,577 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,577 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,577 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,578 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,578 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,578 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,578 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,578 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,579 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,579 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,579 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,579 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,579 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,579 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,580 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,580 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,580 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,581 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,581 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,581 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,581 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,581 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,581 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,582 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,582 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,582 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,582 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,582 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,583 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,583 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,583 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,583 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,584 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,584 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,584 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,584 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,584 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,585 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,585 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,587 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,587 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,587 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,588 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,588 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,588 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,588 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,588 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,590 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,590 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,590 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,590 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,590 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,591 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,591 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,591 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:54,592 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 18:54:54,592 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:54:54,593 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:54:54,593 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:54:54,593 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:54:54,593 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:54:54,593 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:54:54,593 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:54:54,593 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:54:54,596 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions [2019-12-27 18:54:54,596 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions [2019-12-27 18:54:54,615 INFO L132 PetriNetUnfolder]: 7/104 cut-off events. [2019-12-27 18:54:54,615 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 18:54:54,617 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 104 events. 7/104 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 181 event pairs. 0/90 useless extension candidates. Maximal degree in co-relation 82. Up to 8 conditions per place. [2019-12-27 18:54:54,621 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions [2019-12-27 18:54:54,638 INFO L132 PetriNetUnfolder]: 7/104 cut-off events. [2019-12-27 18:54:54,638 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 18:54:54,640 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 104 events. 7/104 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 181 event pairs. 0/90 useless extension candidates. Maximal degree in co-relation 82. Up to 8 conditions per place. [2019-12-27 18:54:54,643 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1944 [2019-12-27 18:54:54,643 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:54:55,832 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3045 [2019-12-27 18:54:55,832 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2019-12-27 18:54:55,833 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 21 transitions [2019-12-27 18:54:55,872 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 904 states. [2019-12-27 18:54:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states. [2019-12-27 18:54:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 18:54:55,873 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:55,873 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 18:54:55,873 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:55,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:55,874 INFO L82 PathProgramCache]: Analyzing trace with hash 430208582, now seen corresponding path program 1 times [2019-12-27 18:54:55,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:55,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274275919] [2019-12-27 18:54:55,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:54:55,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274275919] [2019-12-27 18:54:55,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:55,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:54:55,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [734240791] [2019-12-27 18:54:55,907 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:55,907 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:55,908 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 6 states and 5 transitions. [2019-12-27 18:54:55,909 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:55,909 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:54:55,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:54:55,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:55,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:54:55,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:54:55,910 INFO L87 Difference]: Start difference. First operand 904 states. Second operand 4 states. [2019-12-27 18:54:55,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:55,980 INFO L93 Difference]: Finished difference Result 997 states and 2621 transitions. [2019-12-27 18:54:55,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:54:55,981 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 18:54:55,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:55,994 INFO L225 Difference]: With dead ends: 997 [2019-12-27 18:54:55,995 INFO L226 Difference]: Without dead ends: 957 [2019-12-27 18:54:55,995 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:54:56,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2019-12-27 18:54:56,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 823. [2019-12-27 18:54:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2019-12-27 18:54:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 2262 transitions. [2019-12-27 18:54:56,111 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 2262 transitions. Word has length 5 [2019-12-27 18:54:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:56,114 INFO L462 AbstractCegarLoop]: Abstraction has 823 states and 2262 transitions. [2019-12-27 18:54:56,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:54:56,114 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 2262 transitions. [2019-12-27 18:54:56,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 18:54:56,118 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:56,118 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:54:56,119 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:56,119 INFO L82 PathProgramCache]: Analyzing trace with hash -432656821, now seen corresponding path program 1 times [2019-12-27 18:54:56,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:56,120 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80761009] [2019-12-27 18:54:56,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:54:56,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80761009] [2019-12-27 18:54:56,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:56,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:54:56,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1442483935] [2019-12-27 18:54:56,198 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:56,200 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:56,204 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 38 transitions. [2019-12-27 18:54:56,204 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:56,208 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:54:56,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:54:56,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:56,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:54:56,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:54:56,209 INFO L87 Difference]: Start difference. First operand 823 states and 2262 transitions. Second operand 5 states. [2019-12-27 18:54:56,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:56,291 INFO L93 Difference]: Finished difference Result 706 states and 1924 transitions. [2019-12-27 18:54:56,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:54:56,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-27 18:54:56,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:56,297 INFO L225 Difference]: With dead ends: 706 [2019-12-27 18:54:56,297 INFO L226 Difference]: Without dead ends: 664 [2019-12-27 18:54:56,298 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:54:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2019-12-27 18:54:56,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 519. [2019-12-27 18:54:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2019-12-27 18:54:56,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 1463 transitions. [2019-12-27 18:54:56,317 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 1463 transitions. Word has length 12 [2019-12-27 18:54:56,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:56,317 INFO L462 AbstractCegarLoop]: Abstraction has 519 states and 1463 transitions. [2019-12-27 18:54:56,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:54:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 1463 transitions. [2019-12-27 18:54:56,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 18:54:56,319 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:56,319 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2019-12-27 18:54:56,319 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:56,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:56,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1528779804, now seen corresponding path program 1 times [2019-12-27 18:54:56,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:56,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732158654] [2019-12-27 18:54:56,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:54:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:54:56,352 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 18:54:56,352 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 18:54:56,352 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 18:54:56,352 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 18:54:56,360 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,360 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,360 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,361 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,361 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,361 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,361 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,361 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,362 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,362 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,362 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,362 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,362 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,362 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,363 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,363 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,363 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,363 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,363 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,363 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,364 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,364 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,364 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,364 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,364 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,364 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,365 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,365 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,365 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,365 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,365 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,365 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,366 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,366 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,366 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,366 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,366 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,366 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,367 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,367 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,367 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,367 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,367 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,368 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,368 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,368 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,368 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,368 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,368 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,369 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,369 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,369 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,369 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,369 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,369 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,370 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,370 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,370 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,370 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,371 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,371 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,371 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,371 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,371 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,373 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,373 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,373 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,373 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,373 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,373 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,374 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,374 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,375 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,375 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,375 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,376 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,376 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,376 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,376 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,376 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,377 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,378 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,378 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,378 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,378 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,379 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,379 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,379 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:56,380 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 18:54:56,381 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:54:56,381 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:54:56,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:54:56,381 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:54:56,381 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:54:56,381 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:54:56,381 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:54:56,382 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:54:56,383 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions [2019-12-27 18:54:56,384 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions [2019-12-27 18:54:56,414 INFO L132 PetriNetUnfolder]: 9/130 cut-off events. [2019-12-27 18:54:56,414 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 18:54:56,421 INFO L76 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 130 events. 9/130 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 241 event pairs. 0/112 useless extension candidates. Maximal degree in co-relation 112. Up to 10 conditions per place. [2019-12-27 18:54:56,425 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions [2019-12-27 18:54:56,445 INFO L132 PetriNetUnfolder]: 9/130 cut-off events. [2019-12-27 18:54:56,445 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 18:54:56,448 INFO L76 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 130 events. 9/130 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 241 event pairs. 0/112 useless extension candidates. Maximal degree in co-relation 112. Up to 10 conditions per place. [2019-12-27 18:54:56,454 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3216 [2019-12-27 18:54:56,454 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:54:57,866 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5527 [2019-12-27 18:54:57,867 INFO L214 etLargeBlockEncoding]: Total number of compositions: 71 [2019-12-27 18:54:57,867 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 32 transitions [2019-12-27 18:54:58,402 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7564 states. [2019-12-27 18:54:58,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states. [2019-12-27 18:54:58,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 18:54:58,403 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:58,404 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 18:54:58,404 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:58,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:58,404 INFO L82 PathProgramCache]: Analyzing trace with hash 588674300, now seen corresponding path program 1 times [2019-12-27 18:54:58,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:58,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129019075] [2019-12-27 18:54:58,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:54:58,446 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129019075] [2019-12-27 18:54:58,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:58,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:54:58,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [859226017] [2019-12-27 18:54:58,447 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:58,448 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:58,448 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 6 states and 5 transitions. [2019-12-27 18:54:58,448 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:58,449 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:54:58,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:54:58,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:58,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:54:58,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:54:58,450 INFO L87 Difference]: Start difference. First operand 7564 states. Second operand 4 states. [2019-12-27 18:54:58,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:58,752 INFO L93 Difference]: Finished difference Result 13033 states and 47597 transitions. [2019-12-27 18:54:58,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:54:58,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 18:54:58,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:58,888 INFO L225 Difference]: With dead ends: 13033 [2019-12-27 18:54:58,888 INFO L226 Difference]: Without dead ends: 12766 [2019-12-27 18:54:58,889 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:54:58,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12766 states. [2019-12-27 18:54:59,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12766 to 10529. [2019-12-27 18:54:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10529 states. [2019-12-27 18:54:59,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10529 states to 10529 states and 39452 transitions. [2019-12-27 18:54:59,476 INFO L78 Accepts]: Start accepts. Automaton has 10529 states and 39452 transitions. Word has length 5 [2019-12-27 18:54:59,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:59,476 INFO L462 AbstractCegarLoop]: Abstraction has 10529 states and 39452 transitions. [2019-12-27 18:54:59,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:54:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 10529 states and 39452 transitions. [2019-12-27 18:54:59,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 18:54:59,478 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:59,478 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:54:59,478 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:59,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:59,479 INFO L82 PathProgramCache]: Analyzing trace with hash -103934083, now seen corresponding path program 1 times [2019-12-27 18:54:59,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:59,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052785212] [2019-12-27 18:54:59,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:54:59,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052785212] [2019-12-27 18:54:59,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:59,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:54:59,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [34500627] [2019-12-27 18:54:59,536 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:59,537 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:59,540 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 38 transitions. [2019-12-27 18:54:59,540 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:59,542 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:54:59,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:54:59,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:59,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:54:59,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:54:59,543 INFO L87 Difference]: Start difference. First operand 10529 states and 39452 transitions. Second operand 5 states. [2019-12-27 18:54:59,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:59,718 INFO L93 Difference]: Finished difference Result 11190 states and 40701 transitions. [2019-12-27 18:54:59,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:54:59,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-27 18:54:59,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:59,771 INFO L225 Difference]: With dead ends: 11190 [2019-12-27 18:54:59,771 INFO L226 Difference]: Without dead ends: 10822 [2019-12-27 18:54:59,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:54:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2019-12-27 18:55:00,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 6667. [2019-12-27 18:55:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6667 states. [2019-12-27 18:55:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6667 states to 6667 states and 24831 transitions. [2019-12-27 18:55:00,054 INFO L78 Accepts]: Start accepts. Automaton has 6667 states and 24831 transitions. Word has length 12 [2019-12-27 18:55:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:00,054 INFO L462 AbstractCegarLoop]: Abstraction has 6667 states and 24831 transitions. [2019-12-27 18:55:00,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:55:00,055 INFO L276 IsEmpty]: Start isEmpty. Operand 6667 states and 24831 transitions. [2019-12-27 18:55:00,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 18:55:00,058 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:00,058 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:00,058 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:00,058 INFO L82 PathProgramCache]: Analyzing trace with hash 58312916, now seen corresponding path program 1 times [2019-12-27 18:55:00,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:00,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242709665] [2019-12-27 18:55:00,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:55:00,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242709665] [2019-12-27 18:55:00,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:00,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:55:00,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [924838890] [2019-12-27 18:55:00,131 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:00,134 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:00,142 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 54 states and 87 transitions. [2019-12-27 18:55:00,142 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:00,145 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-27 18:55:00,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 18:55:00,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:00,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 18:55:00,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:55:00,147 INFO L87 Difference]: Start difference. First operand 6667 states and 24831 transitions. Second operand 6 states. [2019-12-27 18:55:00,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:00,779 INFO L93 Difference]: Finished difference Result 6144 states and 22926 transitions. [2019-12-27 18:55:00,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 18:55:00,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-12-27 18:55:00,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:00,811 INFO L225 Difference]: With dead ends: 6144 [2019-12-27 18:55:00,811 INFO L226 Difference]: Without dead ends: 5712 [2019-12-27 18:55:00,812 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:55:00,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5712 states. [2019-12-27 18:55:00,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5712 to 3941. [2019-12-27 18:55:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3941 states. [2019-12-27 18:55:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 14870 transitions. [2019-12-27 18:55:00,983 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 14870 transitions. Word has length 19 [2019-12-27 18:55:00,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:00,985 INFO L462 AbstractCegarLoop]: Abstraction has 3941 states and 14870 transitions. [2019-12-27 18:55:00,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 18:55:00,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 14870 transitions. [2019-12-27 18:55:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 18:55:00,988 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:00,988 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:00,988 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:00,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:00,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1675149140, now seen corresponding path program 1 times [2019-12-27 18:55:00,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:00,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464126073] [2019-12-27 18:55:00,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:55:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:55:01,047 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 18:55:01,047 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 18:55:01,049 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 18:55:01,049 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 18:55:01,061 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,061 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,062 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,062 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,062 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,062 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,062 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,062 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,063 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,063 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,063 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,063 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,063 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,063 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,064 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,064 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,064 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,064 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,064 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,065 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,065 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,065 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,065 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,065 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,065 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,066 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,067 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,067 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,068 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,068 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,068 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,068 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,068 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,069 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,069 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,069 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,069 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,069 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,070 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,071 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,071 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,072 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,072 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,072 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,072 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,072 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,072 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,073 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,073 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,073 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,073 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,073 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,074 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,074 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,074 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,074 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,075 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,076 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,077 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,078 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,078 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,078 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,079 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,079 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,079 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,079 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,079 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,079 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,080 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,080 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,081 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,081 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,082 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,082 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,082 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,082 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,082 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,082 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,083 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,084 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,084 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,084 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,084 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,084 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,084 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,085 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,086 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,086 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,086 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,086 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,086 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,086 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,087 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,087 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,089 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,089 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,089 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,089 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,089 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,089 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,089 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,090 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:01,091 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 18:55:01,091 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:55:01,091 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:55:01,091 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:55:01,091 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:55:01,091 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:55:01,092 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:55:01,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:55:01,092 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:55:01,093 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 95 transitions [2019-12-27 18:55:01,094 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions [2019-12-27 18:55:01,123 INFO L132 PetriNetUnfolder]: 11/156 cut-off events. [2019-12-27 18:55:01,123 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 18:55:01,126 INFO L76 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 156 events. 11/156 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 318 event pairs. 0/134 useless extension candidates. Maximal degree in co-relation 143. Up to 12 conditions per place. [2019-12-27 18:55:01,134 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions [2019-12-27 18:55:01,161 INFO L132 PetriNetUnfolder]: 11/156 cut-off events. [2019-12-27 18:55:01,161 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 18:55:01,164 INFO L76 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 156 events. 11/156 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 318 event pairs. 0/134 useless extension candidates. Maximal degree in co-relation 143. Up to 12 conditions per place. [2019-12-27 18:55:01,173 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4800 [2019-12-27 18:55:01,173 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:55:02,813 INFO L206 etLargeBlockEncoding]: Checked pairs total: 7263 [2019-12-27 18:55:02,813 INFO L214 etLargeBlockEncoding]: Total number of compositions: 79 [2019-12-27 18:55:02,814 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 33 transitions [2019-12-27 18:55:05,335 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26404 states. [2019-12-27 18:55:05,335 INFO L276 IsEmpty]: Start isEmpty. Operand 26404 states. [2019-12-27 18:55:05,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 18:55:05,336 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:05,336 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 18:55:05,336 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:05,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:05,337 INFO L82 PathProgramCache]: Analyzing trace with hash 773438836, now seen corresponding path program 1 times [2019-12-27 18:55:05,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:05,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92705506] [2019-12-27 18:55:05,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:05,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:55:05,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92705506] [2019-12-27 18:55:05,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:05,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:55:05,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1910694420] [2019-12-27 18:55:05,361 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:05,362 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:05,362 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 6 states and 5 transitions. [2019-12-27 18:55:05,362 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:05,362 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:55:05,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:55:05,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:05,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:55:05,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:55:05,363 INFO L87 Difference]: Start difference. First operand 26404 states. Second operand 4 states. [2019-12-27 18:55:05,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:05,569 INFO L93 Difference]: Finished difference Result 20618 states and 92559 transitions. [2019-12-27 18:55:05,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:55:05,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 18:55:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:05,680 INFO L225 Difference]: With dead ends: 20618 [2019-12-27 18:55:05,681 INFO L226 Difference]: Without dead ends: 20537 [2019-12-27 18:55:05,681 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:55:05,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20537 states. [2019-12-27 18:55:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20537 to 20123. [2019-12-27 18:55:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20123 states. [2019-12-27 18:55:07,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20123 states to 20123 states and 91125 transitions. [2019-12-27 18:55:07,467 INFO L78 Accepts]: Start accepts. Automaton has 20123 states and 91125 transitions. Word has length 5 [2019-12-27 18:55:07,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:07,467 INFO L462 AbstractCegarLoop]: Abstraction has 20123 states and 91125 transitions. [2019-12-27 18:55:07,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:55:07,467 INFO L276 IsEmpty]: Start isEmpty. Operand 20123 states and 91125 transitions. [2019-12-27 18:55:07,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 18:55:07,468 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:07,468 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:07,468 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:07,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:07,469 INFO L82 PathProgramCache]: Analyzing trace with hash -217213298, now seen corresponding path program 1 times [2019-12-27 18:55:07,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:07,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104224364] [2019-12-27 18:55:07,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 18:55:07,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104224364] [2019-12-27 18:55:07,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:07,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:55:07,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [985244911] [2019-12-27 18:55:07,525 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:07,525 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:07,527 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 38 transitions. [2019-12-27 18:55:07,527 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:07,587 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 9 times. [2019-12-27 18:55:07,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-27 18:55:07,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:07,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-27 18:55:07,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-12-27 18:55:07,588 INFO L87 Difference]: Start difference. First operand 20123 states and 91125 transitions. Second operand 10 states. [2019-12-27 18:55:08,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:08,873 INFO L93 Difference]: Finished difference Result 71151 states and 279149 transitions. [2019-12-27 18:55:08,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-27 18:55:08,879 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-12-27 18:55:08,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:09,180 INFO L225 Difference]: With dead ends: 71151 [2019-12-27 18:55:09,180 INFO L226 Difference]: Without dead ends: 71101 [2019-12-27 18:55:09,181 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=163, Unknown=0, NotChecked=0, Total=272 [2019-12-27 18:55:09,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71101 states. [2019-12-27 18:55:13,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71101 to 45013. [2019-12-27 18:55:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45013 states. [2019-12-27 18:55:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45013 states to 45013 states and 191691 transitions. [2019-12-27 18:55:13,451 INFO L78 Accepts]: Start accepts. Automaton has 45013 states and 191691 transitions. Word has length 12 [2019-12-27 18:55:13,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:13,451 INFO L462 AbstractCegarLoop]: Abstraction has 45013 states and 191691 transitions. [2019-12-27 18:55:13,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-27 18:55:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 45013 states and 191691 transitions. [2019-12-27 18:55:13,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 18:55:13,452 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:13,452 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:13,452 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:13,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:13,452 INFO L82 PathProgramCache]: Analyzing trace with hash -218063318, now seen corresponding path program 2 times [2019-12-27 18:55:13,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:13,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297481952] [2019-12-27 18:55:13,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:55:13,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297481952] [2019-12-27 18:55:13,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:13,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:55:13,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [363754399] [2019-12-27 18:55:13,505 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:13,506 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:13,508 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 20 transitions. [2019-12-27 18:55:13,508 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:13,508 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:55:13,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 18:55:13,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:13,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 18:55:13,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:55:13,511 INFO L87 Difference]: Start difference. First operand 45013 states and 191691 transitions. Second operand 6 states. [2019-12-27 18:55:13,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:13,810 INFO L93 Difference]: Finished difference Result 34579 states and 147296 transitions. [2019-12-27 18:55:13,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 18:55:13,810 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-12-27 18:55:13,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:13,913 INFO L225 Difference]: With dead ends: 34579 [2019-12-27 18:55:13,914 INFO L226 Difference]: Without dead ends: 34570 [2019-12-27 18:55:13,914 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:55:13,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34570 states. [2019-12-27 18:55:14,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34570 to 29590. [2019-12-27 18:55:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29590 states. [2019-12-27 18:55:15,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29590 states to 29590 states and 123427 transitions. [2019-12-27 18:55:15,005 INFO L78 Accepts]: Start accepts. Automaton has 29590 states and 123427 transitions. Word has length 12 [2019-12-27 18:55:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:15,005 INFO L462 AbstractCegarLoop]: Abstraction has 29590 states and 123427 transitions. [2019-12-27 18:55:15,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 18:55:15,005 INFO L276 IsEmpty]: Start isEmpty. Operand 29590 states and 123427 transitions. [2019-12-27 18:55:15,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 18:55:15,007 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:15,008 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:15,008 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:15,008 INFO L82 PathProgramCache]: Analyzing trace with hash -515441892, now seen corresponding path program 1 times [2019-12-27 18:55:15,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:15,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146833933] [2019-12-27 18:55:15,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 18:55:15,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146833933] [2019-12-27 18:55:15,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:15,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 18:55:15,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [581340120] [2019-12-27 18:55:15,082 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:15,084 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:15,087 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 29 states and 37 transitions. [2019-12-27 18:55:15,088 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:15,096 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:55:15,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 18:55:15,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:15,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 18:55:15,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-12-27 18:55:15,097 INFO L87 Difference]: Start difference. First operand 29590 states and 123427 transitions. Second operand 8 states. [2019-12-27 18:55:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:15,649 INFO L93 Difference]: Finished difference Result 50064 states and 210507 transitions. [2019-12-27 18:55:15,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-27 18:55:15,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-12-27 18:55:15,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:15,806 INFO L225 Difference]: With dead ends: 50064 [2019-12-27 18:55:15,806 INFO L226 Difference]: Without dead ends: 49920 [2019-12-27 18:55:15,807 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-27 18:55:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49920 states. [2019-12-27 18:55:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49920 to 40693. [2019-12-27 18:55:18,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40693 states. [2019-12-27 18:55:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40693 states to 40693 states and 172283 transitions. [2019-12-27 18:55:18,464 INFO L78 Accepts]: Start accepts. Automaton has 40693 states and 172283 transitions. Word has length 19 [2019-12-27 18:55:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:18,464 INFO L462 AbstractCegarLoop]: Abstraction has 40693 states and 172283 transitions. [2019-12-27 18:55:18,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 18:55:18,465 INFO L276 IsEmpty]: Start isEmpty. Operand 40693 states and 172283 transitions. [2019-12-27 18:55:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 18:55:18,467 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:18,467 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:18,468 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:18,468 INFO L82 PathProgramCache]: Analyzing trace with hash -553915992, now seen corresponding path program 2 times [2019-12-27 18:55:18,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:18,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922739882] [2019-12-27 18:55:18,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 18:55:18,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922739882] [2019-12-27 18:55:18,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:18,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 18:55:18,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [713643495] [2019-12-27 18:55:18,538 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:18,539 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:18,544 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 31 states and 41 transitions. [2019-12-27 18:55:18,544 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:18,569 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:55:18,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-27 18:55:18,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:18,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-27 18:55:18,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-12-27 18:55:18,571 INFO L87 Difference]: Start difference. First operand 40693 states and 172283 transitions. Second operand 9 states. [2019-12-27 18:55:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:19,837 INFO L93 Difference]: Finished difference Result 70824 states and 281018 transitions. [2019-12-27 18:55:19,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-12-27 18:55:19,837 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-12-27 18:55:19,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:20,011 INFO L225 Difference]: With dead ends: 70824 [2019-12-27 18:55:20,012 INFO L226 Difference]: Without dead ends: 70748 [2019-12-27 18:55:20,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2019-12-27 18:55:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70748 states. [2019-12-27 18:55:23,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70748 to 36681. [2019-12-27 18:55:23,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36681 states. [2019-12-27 18:55:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36681 states to 36681 states and 155689 transitions. [2019-12-27 18:55:23,376 INFO L78 Accepts]: Start accepts. Automaton has 36681 states and 155689 transitions. Word has length 19 [2019-12-27 18:55:23,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:23,377 INFO L462 AbstractCegarLoop]: Abstraction has 36681 states and 155689 transitions. [2019-12-27 18:55:23,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-27 18:55:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 36681 states and 155689 transitions. [2019-12-27 18:55:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 18:55:23,380 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:23,380 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:23,380 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:23,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:23,380 INFO L82 PathProgramCache]: Analyzing trace with hash -556028952, now seen corresponding path program 3 times [2019-12-27 18:55:23,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:23,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353653554] [2019-12-27 18:55:23,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 18:55:23,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353653554] [2019-12-27 18:55:23,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:23,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 18:55:23,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2024999663] [2019-12-27 18:55:23,455 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:23,457 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:23,461 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 31 states and 41 transitions. [2019-12-27 18:55:23,462 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:23,467 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:55:23,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-27 18:55:23,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:23,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-27 18:55:23,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2019-12-27 18:55:23,469 INFO L87 Difference]: Start difference. First operand 36681 states and 155689 transitions. Second operand 9 states. [2019-12-27 18:55:23,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:23,874 INFO L93 Difference]: Finished difference Result 35944 states and 150645 transitions. [2019-12-27 18:55:23,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 18:55:23,874 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-12-27 18:55:23,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:23,968 INFO L225 Difference]: With dead ends: 35944 [2019-12-27 18:55:23,968 INFO L226 Difference]: Without dead ends: 35506 [2019-12-27 18:55:23,969 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2019-12-27 18:55:24,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35506 states. [2019-12-27 18:55:24,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35506 to 18987. [2019-12-27 18:55:24,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18987 states. [2019-12-27 18:55:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18987 states to 18987 states and 81581 transitions. [2019-12-27 18:55:24,450 INFO L78 Accepts]: Start accepts. Automaton has 18987 states and 81581 transitions. Word has length 19 [2019-12-27 18:55:24,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:24,450 INFO L462 AbstractCegarLoop]: Abstraction has 18987 states and 81581 transitions. [2019-12-27 18:55:24,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-27 18:55:24,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18987 states and 81581 transitions. [2019-12-27 18:55:24,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-27 18:55:24,458 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:24,458 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:24,458 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:24,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:24,459 INFO L82 PathProgramCache]: Analyzing trace with hash -2102434016, now seen corresponding path program 1 times [2019-12-27 18:55:24,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:24,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059506345] [2019-12-27 18:55:24,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:55:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:55:24,481 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 18:55:24,481 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 18:55:24,481 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 18:55:24,481 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-27 18:55:24,491 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,491 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,491 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,491 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,492 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,492 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,492 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,492 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,492 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,492 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,492 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,493 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,493 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,494 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,494 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,494 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,494 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,495 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,495 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,496 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,496 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,496 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,496 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,496 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,496 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,496 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,497 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,497 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,498 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,498 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,498 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,499 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,499 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,500 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,500 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,500 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,500 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,501 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,501 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,501 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,501 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,501 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,501 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,501 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,502 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,502 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,502 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,502 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,502 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,502 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,502 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,503 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,503 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,503 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,503 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,503 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,504 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,504 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,504 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,504 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,504 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,504 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,504 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,512 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,512 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,513 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,513 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,514 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,514 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,515 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,516 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,516 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,516 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,517 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,517 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,517 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,517 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,518 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,518 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,518 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,518 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,519 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,519 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,519 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:55:24,520 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 18:55:24,521 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:55:24,521 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:55:24,521 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:55:24,521 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:55:24,521 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:55:24,521 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:55:24,521 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:55:24,521 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:55:24,522 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 108 transitions [2019-12-27 18:55:24,523 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions [2019-12-27 18:55:24,550 INFO L132 PetriNetUnfolder]: 13/182 cut-off events. [2019-12-27 18:55:24,550 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 18:55:24,554 INFO L76 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 182 events. 13/182 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 376 event pairs. 0/156 useless extension candidates. Maximal degree in co-relation 175. Up to 14 conditions per place. [2019-12-27 18:55:24,567 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions [2019-12-27 18:55:24,594 INFO L132 PetriNetUnfolder]: 13/182 cut-off events. [2019-12-27 18:55:24,595 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 18:55:24,599 INFO L76 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 182 events. 13/182 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 376 event pairs. 0/156 useless extension candidates. Maximal degree in co-relation 175. Up to 14 conditions per place. [2019-12-27 18:55:24,611 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6696 [2019-12-27 18:55:24,611 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:55:26,638 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10794 [2019-12-27 18:55:26,638 INFO L214 etLargeBlockEncoding]: Total number of compositions: 91 [2019-12-27 18:55:26,639 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 42 transitions [2019-12-27 18:56:38,686 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 190114 states. [2019-12-27 18:56:38,687 INFO L276 IsEmpty]: Start isEmpty. Operand 190114 states. [2019-12-27 18:56:38,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 18:56:38,687 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:56:38,687 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 18:56:38,687 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:56:38,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:56:38,688 INFO L82 PathProgramCache]: Analyzing trace with hash 979526836, now seen corresponding path program 1 times [2019-12-27 18:56:38,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:56:38,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805183443] [2019-12-27 18:56:38,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:56:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:56:38,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:56:38,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805183443] [2019-12-27 18:56:38,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:56:38,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:56:38,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2051536772] [2019-12-27 18:56:38,729 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:56:38,730 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:56:38,730 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 6 states and 5 transitions. [2019-12-27 18:56:38,730 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:56:38,730 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:56:38,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:56:38,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:56:38,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:56:38,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:56:38,731 INFO L87 Difference]: Start difference. First operand 190114 states. Second operand 4 states. [2019-12-27 18:56:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:56:45,882 INFO L93 Difference]: Finished difference Result 402775 states and 2019284 transitions. [2019-12-27 18:56:45,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:56:45,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 18:56:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:56:55,060 INFO L225 Difference]: With dead ends: 402775 [2019-12-27 18:56:55,060 INFO L226 Difference]: Without dead ends: 401629 [2019-12-27 18:56:55,060 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:57:06,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401629 states. [2019-12-27 18:57:16,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401629 to 353007. [2019-12-27 18:57:16,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353007 states. [2019-12-27 18:57:29,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353007 states to 353007 states and 1799186 transitions. [2019-12-27 18:57:29,157 INFO L78 Accepts]: Start accepts. Automaton has 353007 states and 1799186 transitions. Word has length 5 [2019-12-27 18:57:29,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:57:29,158 INFO L462 AbstractCegarLoop]: Abstraction has 353007 states and 1799186 transitions. [2019-12-27 18:57:29,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:57:29,158 INFO L276 IsEmpty]: Start isEmpty. Operand 353007 states and 1799186 transitions. [2019-12-27 18:57:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 18:57:29,158 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:57:29,158 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:57:29,158 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:57:29,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:57:29,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1927401696, now seen corresponding path program 1 times [2019-12-27 18:57:29,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:57:29,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303072226] [2019-12-27 18:57:29,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:57:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:57:29,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 18:57:29,188 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303072226] [2019-12-27 18:57:29,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:57:29,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:57:29,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2011373266] [2019-12-27 18:57:29,189 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:57:29,189 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:57:29,190 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 12 transitions. [2019-12-27 18:57:29,191 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:57:29,191 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:57:29,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:57:29,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:57:29,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:57:29,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:57:29,192 INFO L87 Difference]: Start difference. First operand 353007 states and 1799186 transitions. Second operand 5 states. [2019-12-27 18:57:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:57:52,979 INFO L93 Difference]: Finished difference Result 490113 states and 2362764 transitions. [2019-12-27 18:57:52,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:57:52,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-27 18:57:52,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:57:56,092 INFO L225 Difference]: With dead ends: 490113 [2019-12-27 18:57:56,093 INFO L226 Difference]: Without dead ends: 488817 [2019-12-27 18:57:56,093 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:57:58,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488817 states. [2019-12-27 18:58:06,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488817 to 266173. [2019-12-27 18:58:06,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266173 states. Received shutdown request... [2019-12-27 18:58:18,745 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 18:58:18,749 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 18:58:18,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:58:18 BasicIcfg [2019-12-27 18:58:18,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:58:18,752 INFO L168 Benchmark]: Toolchain (without parser) took 208440.95 ms. Allocated memory was 137.9 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 99.7 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 5.7 GB. Max. memory is 7.1 GB. [2019-12-27 18:58:18,759 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 18:58:18,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.05 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.5 MB in the beginning and 160.6 MB in the end (delta: -61.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:58:18,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.75 ms. Allocated memory is still 202.4 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:58:18,768 INFO L168 Benchmark]: Boogie Preprocessor took 35.17 ms. Allocated memory is still 202.4 MB. Free memory was 157.9 MB in the beginning and 156.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:58:18,768 INFO L168 Benchmark]: RCFGBuilder took 431.69 ms. Allocated memory is still 202.4 MB. Free memory was 156.6 MB in the beginning and 139.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2019-12-27 18:58:18,769 INFO L168 Benchmark]: TraceAbstraction took 207175.07 ms. Allocated memory was 202.4 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 139.0 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 5.7 GB. Max. memory is 7.1 GB. [2019-12-27 18:58:18,775 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 733.05 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.5 MB in the beginning and 160.6 MB in the end (delta: -61.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.75 ms. Allocated memory is still 202.4 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.17 ms. Allocated memory is still 202.4 MB. Free memory was 157.9 MB in the beginning and 156.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.69 ms. Allocated memory is still 202.4 MB. Free memory was 156.6 MB in the beginning and 139.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207175.07 ms. Allocated memory was 202.4 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 139.0 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 5.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 44 ProgramPointsBefore, 9 ProgramPointsAfterwards, 43 TransitionsBefore, 8 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 169 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 243 CheckedPairsTotal, 40 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 58 ProgramPointsBefore, 18 ProgramPointsAfterwards, 56 TransitionsBefore, 16 TransitionsAfterwards, 984 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 510 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1323 CheckedPairsTotal, 46 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 72 ProgramPointsBefore, 24 ProgramPointsAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1944 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 1011 VarBasedMoverChecksPositive, 48 VarBasedMoverChecksNegative, 26 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 3045 CheckedPairsTotal, 60 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 86 ProgramPointsBefore, 33 ProgramPointsAfterwards, 82 TransitionsBefore, 32 TransitionsAfterwards, 3216 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 1720 VarBasedMoverChecksPositive, 123 VarBasedMoverChecksNegative, 118 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 5527 CheckedPairsTotal, 71 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 100 ProgramPointsBefore, 37 ProgramPointsAfterwards, 95 TransitionsBefore, 33 TransitionsAfterwards, 4800 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 5 ChoiceCompositions, 2424 VarBasedMoverChecksPositive, 131 VarBasedMoverChecksNegative, 98 SemBasedMoverChecksPositive, 58 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 7263 CheckedPairsTotal, 79 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 114 ProgramPointsBefore, 45 ProgramPointsAfterwards, 108 TransitionsBefore, 42 TransitionsAfterwards, 6696 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 3478 VarBasedMoverChecksPositive, 189 VarBasedMoverChecksNegative, 153 SemBasedMoverChecksPositive, 56 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 0 MoverChecksTotal, 10794 CheckedPairsTotal, 91 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 676]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 676). Cancelled while ReachableStatesComputation was computing reachable states (60428 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 174.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 43.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 103 SDslu, 78 SDs, 0 SdLazy, 189 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353007occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 56.7s AutomataMinimizationTime, 2 MinimizatonAttempts, 48622 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown