/usr/bin/java -Xmx16000000000 -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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:15:40,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:15:40,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:15:40,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:15:40,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:15:40,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:15:40,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:15:40,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:15:40,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:15:40,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:15:40,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:15:40,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:15:40,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:15:40,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:15:40,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:15:40,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:15:40,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:15:40,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:15:40,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:15:40,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:15:40,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:15:40,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:15:40,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:15:40,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:15:40,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 22:15:40,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:15:40,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:15:40,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:15:40,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:15:40,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:15:40,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:15:40,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:15:40,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:15:40,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:15:40,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:15:40,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:15:40,818 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.epf [2020-10-15 22:15:40,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:15:40,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:15:40,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:15:40,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:15:40,844 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:15:40,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:15:40,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:15:40,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:15:40,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:15:40,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:15:40,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:15:40,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:15:40,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:15:40,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:15:40,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:15:40,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:15:40,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:15:40,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:15:40,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:15:40,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:15:40,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:15:40,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:15:40,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:15:40,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:15:40,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:15:40,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:15:40,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:15:40,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:15:40,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:15:41,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:15:41,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:15:41,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:15:41,142 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:15:41,143 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:15:41,143 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-15 22:15:41,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00df3854b/063c433a7ba44290be7d8d1cfb0e8744/FLAGd78f11928 [2020-10-15 22:15:41,695 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:15:41,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-15 22:15:41,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00df3854b/063c433a7ba44290be7d8d1cfb0e8744/FLAGd78f11928 [2020-10-15 22:15:42,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00df3854b/063c433a7ba44290be7d8d1cfb0e8744 [2020-10-15 22:15:42,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:15:42,031 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:15:42,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:15:42,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:15:42,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:15:42,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd161ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42, skipping insertion in model container [2020-10-15 22:15:42,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:15:42,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:15:42,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:15:42,562 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:15:42,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:15:42,691 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:15:42,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42 WrapperNode [2020-10-15 22:15:42,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:15:42,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:15:42,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:15:42,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:15:42,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:15:42,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:15:42,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:15:42,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:15:42,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (1/1) ... [2020-10-15 22:15:42,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:15:42,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:15:42,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:15:42,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:15:42,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (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 [2020-10-15 22:15:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:15:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:15:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:15:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:15:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:15:42,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:15:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:15:42,841 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:15:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:15:42,842 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:15:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 22:15:42,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 22:15:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:15:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:15:42,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:15:42,847 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:15:43,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:15:43,339 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:15:43,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:15:43 BoogieIcfgContainer [2020-10-15 22:15:43,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:15:43,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:15:43,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:15:43,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:15:43,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:15:42" (1/3) ... [2020-10-15 22:15:43,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57814af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:15:43, skipping insertion in model container [2020-10-15 22:15:43,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:15:42" (2/3) ... [2020-10-15 22:15:43,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57814af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:15:43, skipping insertion in model container [2020-10-15 22:15:43,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:15:43" (3/3) ... [2020-10-15 22:15:43,350 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-10-15 22:15:43,363 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:15:43,363 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:15:43,371 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:15:43,372 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:15:43,402 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,402 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,402 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,403 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,404 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,406 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,406 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,407 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,407 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,408 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,408 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,408 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,408 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,409 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,412 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,413 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,413 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,413 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,424 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,425 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,427 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,428 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,430 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,430 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,431 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:15:43,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:15:43,468 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:15:43,469 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:15:43,469 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:15:43,469 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:15:43,469 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:15:43,469 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:15:43,470 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:15:43,470 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:15:43,484 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:15:43,487 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:43,490 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:43,492 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-15 22:15:43,547 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-15 22:15:43,548 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:15:43,556 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 22:15:43,560 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 22:15:45,018 INFO L132 LiptonReduction]: Checked pairs total: 3047 [2020-10-15 22:15:45,018 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-15 22:15:45,025 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-15 22:15:45,088 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-15 22:15:45,091 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-15 22:15:45,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:15:45,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:45,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:45,104 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:45,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:45,111 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-15 22:15:45,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:45,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093899633] [2020-10-15 22:15:45,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:45,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093899633] [2020-10-15 22:15:45,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:45,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:45,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879711604] [2020-10-15 22:15:45,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:15:45,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:45,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:15:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:15:45,378 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-15 22:15:45,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:45,429 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-15 22:15:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:15:45,430 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 22:15:45,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:45,458 INFO L225 Difference]: With dead ends: 850 [2020-10-15 22:15:45,458 INFO L226 Difference]: Without dead ends: 706 [2020-10-15 22:15:45,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:15:45,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-15 22:15:45,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-15 22:15:45,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-15 22:15:45,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-15 22:15:45,606 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-15 22:15:45,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:45,609 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-15 22:15:45,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:15:45,609 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-15 22:15:45,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:15:45,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:45,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:45,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:15:45,613 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:45,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:45,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-15 22:15:45,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:45,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064779692] [2020-10-15 22:15:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:45,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:45,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064779692] [2020-10-15 22:15:45,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:45,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:45,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291071550] [2020-10-15 22:15:45,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:45,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:45,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:45,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:45,762 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-15 22:15:45,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:45,797 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-15 22:15:45,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:45,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:15:45,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:45,804 INFO L225 Difference]: With dead ends: 778 [2020-10-15 22:15:45,804 INFO L226 Difference]: Without dead ends: 634 [2020-10-15 22:15:45,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-15 22:15:45,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-15 22:15:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-15 22:15:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-15 22:15:45,835 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-15 22:15:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:45,835 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-15 22:15:45,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-15 22:15:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:15:45,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:45,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:45,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:15:45,839 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:45,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-10-15 22:15:45,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:45,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312138051] [2020-10-15 22:15:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:45,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312138051] [2020-10-15 22:15:45,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:45,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:15:45,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947202696] [2020-10-15 22:15:45,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:45,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:45,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:45,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:45,906 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-10-15 22:15:45,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:45,940 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-10-15 22:15:45,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:45,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:15:45,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:45,946 INFO L225 Difference]: With dead ends: 688 [2020-10-15 22:15:45,947 INFO L226 Difference]: Without dead ends: 580 [2020-10-15 22:15:45,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:45,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-10-15 22:15:45,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-10-15 22:15:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-10-15 22:15:45,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-10-15 22:15:45,969 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-10-15 22:15:45,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:45,970 INFO L481 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-10-15 22:15:45,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:45,970 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-10-15 22:15:45,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:15:45,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:45,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:45,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:15:45,976 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:45,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:45,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-10-15 22:15:45,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:45,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964461177] [2020-10-15 22:15:45,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:46,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964461177] [2020-10-15 22:15:46,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:46,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:46,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581053571] [2020-10-15 22:15:46,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:46,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:46,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:46,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:46,088 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-10-15 22:15:46,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:46,141 INFO L93 Difference]: Finished difference Result 799 states and 2597 transitions. [2020-10-15 22:15:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:46,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:15:46,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:46,145 INFO L225 Difference]: With dead ends: 799 [2020-10-15 22:15:46,145 INFO L226 Difference]: Without dead ends: 430 [2020-10-15 22:15:46,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:15:46,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-10-15 22:15:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-10-15 22:15:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-15 22:15:46,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-10-15 22:15:46,161 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-10-15 22:15:46,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:46,162 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-10-15 22:15:46,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:46,162 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-10-15 22:15:46,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:15:46,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:46,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:46,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:15:46,164 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:46,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:46,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-10-15 22:15:46,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:46,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799100034] [2020-10-15 22:15:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:46,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799100034] [2020-10-15 22:15:46,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:46,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:46,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405507652] [2020-10-15 22:15:46,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:46,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:46,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:46,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:46,217 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-10-15 22:15:46,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:46,263 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-10-15 22:15:46,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:46,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 22:15:46,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:46,266 INFO L225 Difference]: With dead ends: 556 [2020-10-15 22:15:46,267 INFO L226 Difference]: Without dead ends: 262 [2020-10-15 22:15:46,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:15:46,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-15 22:15:46,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-15 22:15:46,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-15 22:15:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-15 22:15:46,277 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-15 22:15:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:46,277 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-15 22:15:46,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-15 22:15:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:15:46,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:46,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:46,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:15:46,279 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:46,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:46,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-15 22:15:46,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:46,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135038205] [2020-10-15 22:15:46,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:46,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135038205] [2020-10-15 22:15:46,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:46,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:15:46,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880749763] [2020-10-15 22:15:46,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:15:46,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:46,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:15:46,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:15:46,346 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-10-15 22:15:46,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:46,387 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-10-15 22:15:46,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:46,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 22:15:46,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:46,390 INFO L225 Difference]: With dead ends: 319 [2020-10-15 22:15:46,391 INFO L226 Difference]: Without dead ends: 238 [2020-10-15 22:15:46,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-15 22:15:46,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-15 22:15:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-15 22:15:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-10-15 22:15:46,399 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-10-15 22:15:46,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:46,400 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-10-15 22:15:46,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:15:46,400 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-10-15 22:15:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:15:46,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:46,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:46,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:15:46,402 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:46,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:46,402 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-10-15 22:15:46,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:46,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069351208] [2020-10-15 22:15:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:46,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069351208] [2020-10-15 22:15:46,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:46,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:46,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727213050] [2020-10-15 22:15:46,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:46,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:46,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:46,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:46,466 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-10-15 22:15:46,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:46,512 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-10-15 22:15:46,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:15:46,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 22:15:46,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:46,515 INFO L225 Difference]: With dead ends: 247 [2020-10-15 22:15:46,515 INFO L226 Difference]: Without dead ends: 182 [2020-10-15 22:15:46,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:15:46,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-15 22:15:46,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-15 22:15:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-15 22:15:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-15 22:15:46,521 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-10-15 22:15:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:46,522 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-15 22:15:46,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-15 22:15:46,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:15:46,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:46,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:46,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:15:46,523 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:46,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:46,524 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-15 22:15:46,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:46,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023177742] [2020-10-15 22:15:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:46,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023177742] [2020-10-15 22:15:46,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:46,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:15:46,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227344716] [2020-10-15 22:15:46,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:15:46,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:46,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:15:46,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:15:46,608 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-10-15 22:15:46,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:46,662 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-15 22:15:46,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:15:46,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 22:15:46,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:46,664 INFO L225 Difference]: With dead ends: 165 [2020-10-15 22:15:46,664 INFO L226 Difference]: Without dead ends: 132 [2020-10-15 22:15:46,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:46,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-15 22:15:46,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-15 22:15:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-15 22:15:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-15 22:15:46,669 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-15 22:15:46,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:46,670 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-15 22:15:46,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:15:46,670 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-15 22:15:46,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:15:46,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:46,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:46,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:15:46,672 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:46,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:46,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-15 22:15:46,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:46,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760108362] [2020-10-15 22:15:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:46,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760108362] [2020-10-15 22:15:46,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:46,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 22:15:46,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798670455] [2020-10-15 22:15:46,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:15:46,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:46,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:15:46,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:46,757 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-10-15 22:15:46,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:46,845 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-15 22:15:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 22:15:46,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:15:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:46,847 INFO L225 Difference]: With dead ends: 121 [2020-10-15 22:15:46,847 INFO L226 Difference]: Without dead ends: 112 [2020-10-15 22:15:46,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:15:46,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-15 22:15:46,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-15 22:15:46,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-15 22:15:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-15 22:15:46,851 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-15 22:15:46,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:46,852 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-15 22:15:46,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:15:46,852 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-15 22:15:46,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:15:46,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:46,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:46,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:15:46,853 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:46,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:46,854 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-15 22:15:46,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:46,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97283848] [2020-10-15 22:15:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:46,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97283848] [2020-10-15 22:15:46,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:46,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:46,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555614005] [2020-10-15 22:15:46,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:46,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:46,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:46,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:46,899 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-15 22:15:46,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:46,927 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-15 22:15:46,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:46,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:15:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:46,928 INFO L225 Difference]: With dead ends: 146 [2020-10-15 22:15:46,929 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 22:15:46,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:46,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 22:15:46,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-15 22:15:46,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 22:15:46,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-15 22:15:46,931 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-15 22:15:46,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:46,932 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-15 22:15:46,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:46,932 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-15 22:15:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:15:46,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:15:46,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:15:46,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:15:46,933 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:15:46,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:15:46,933 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-15 22:15:46,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:15:46,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674396732] [2020-10-15 22:15:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:15:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:15:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:15:46,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674396732] [2020-10-15 22:15:46,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:15:46,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:15:46,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16588939] [2020-10-15 22:15:46,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:15:46,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:15:46,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:15:46,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:15:46,978 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-15 22:15:46,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:15:47,000 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-15 22:15:47,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:15:47,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:15:47,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:15:47,001 INFO L225 Difference]: With dead ends: 51 [2020-10-15 22:15:47,001 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:15:47,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:15:47,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:15:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:15:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:15:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:15:47,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-15 22:15:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:15:47,003 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:15:47,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:15:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:15:47,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:15:47,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:15:47,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:15:47 BasicIcfg [2020-10-15 22:15:47,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:15:47,010 INFO L168 Benchmark]: Toolchain (without parser) took 4978.56 ms. Allocated memory was 250.6 MB in the beginning and 422.6 MB in the end (delta: 172.0 MB). Free memory was 203.0 MB in the beginning and 353.1 MB in the end (delta: -150.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:47,010 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:15:47,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.99 ms. Allocated memory was 250.6 MB in the beginning and 313.0 MB in the end (delta: 62.4 MB). Free memory was 203.0 MB in the beginning and 266.3 MB in the end (delta: -63.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:47,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.69 ms. Allocated memory is still 313.0 MB. Free memory was 266.3 MB in the beginning and 263.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:47,013 INFO L168 Benchmark]: Boogie Preprocessor took 26.85 ms. Allocated memory is still 313.0 MB. Free memory was 263.8 MB in the beginning and 261.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:47,013 INFO L168 Benchmark]: RCFGBuilder took 571.06 ms. Allocated memory is still 313.0 MB. Free memory was 261.3 MB in the beginning and 236.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:15:47,014 INFO L168 Benchmark]: TraceAbstraction took 3664.03 ms. Allocated memory was 313.0 MB in the beginning and 422.6 MB in the end (delta: 109.6 MB). Free memory was 236.9 MB in the beginning and 353.1 MB in the end (delta: -116.2 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:15:47,018 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 659.99 ms. Allocated memory was 250.6 MB in the beginning and 313.0 MB in the end (delta: 62.4 MB). Free memory was 203.0 MB in the beginning and 266.3 MB in the end (delta: -63.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 50.69 ms. Allocated memory is still 313.0 MB. Free memory was 266.3 MB in the beginning and 263.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.85 ms. Allocated memory is still 313.0 MB. Free memory was 263.8 MB in the beginning and 261.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 571.06 ms. Allocated memory is still 313.0 MB. Free memory was 261.3 MB in the beginning and 236.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3664.03 ms. Allocated memory was 313.0 MB in the beginning and 422.6 MB in the end (delta: 109.6 MB). Free memory was 236.9 MB in the beginning and 353.1 MB in the end (delta: -116.2 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1256 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 115 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 93 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3047 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...