/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:53:06,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:53:06,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:53:06,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:53:06,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:53:06,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:53:06,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:53:06,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:53:06,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:53:06,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:53:06,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:53:06,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:53:06,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:53:06,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:53:06,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:53:06,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:53:06,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:53:06,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:53:06,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:53:06,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:53:06,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:53:06,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:53:06,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:53:06,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:53:06,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:53:06,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:53:06,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:53:06,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:53:06,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:53:06,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:53:06,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:53:06,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:53:06,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:53:06,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:53:06,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:53:06,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:53:06,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:53:06,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:53:06,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:53:06,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:53:06,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:53:06,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 07:53:06,782 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:53:06,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:53:06,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:53:06,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:53:06,784 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:53:06,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:53:06,784 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:53:06,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:53:06,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:53:06,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:53:06,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:53:06,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:53:06,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:53:06,785 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:53:06,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:53:06,786 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:53:06,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:53:06,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:53:06,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:53:06,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:53:06,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:53:06,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:53:06,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:53:06,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:53:06,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:53:06,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:53:06,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:53:06,788 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:53:06,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:53:06,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:53:07,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:53:07,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:53:07,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:53:07,100 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:53:07,101 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:53:07,102 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-27 07:53:07,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380ecc444/465d2f940552476bb38e4199a6f196e1/FLAG4837735ec [2019-12-27 07:53:07,676 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:53:07,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.opt.i [2019-12-27 07:53:07,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380ecc444/465d2f940552476bb38e4199a6f196e1/FLAG4837735ec [2019-12-27 07:53:07,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380ecc444/465d2f940552476bb38e4199a6f196e1 [2019-12-27 07:53:07,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:53:07,976 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:53:07,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:53:07,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:53:07,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:53:07,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:53:07" (1/1) ... [2019-12-27 07:53:07,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d35bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:07, skipping insertion in model container [2019-12-27 07:53:07,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:53:07" (1/1) ... [2019-12-27 07:53:08,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:53:08,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:53:08,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:53:08,613 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:53:08,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:53:08,770 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:53:08,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08 WrapperNode [2019-12-27 07:53:08,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:53:08,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:53:08,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:53:08,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:53:08,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:53:08,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:53:08,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:53:08,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:53:08,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (1/1) ... [2019-12-27 07:53:08,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:53:08,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:53:08,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:53:08,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:53:08,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (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 07:53:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:53:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:53:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:53:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:53:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:53:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:53:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:53:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:53:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:53:08,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:53:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:53:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:53:08,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:53:08,920 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 07:53:09,289 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:53:09,290 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:53:09,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:53:09 BoogieIcfgContainer [2019-12-27 07:53:09,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:53:09,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:53:09,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:53:09,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:53:09,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:53:07" (1/3) ... [2019-12-27 07:53:09,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e6fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:53:09, skipping insertion in model container [2019-12-27 07:53:09,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:08" (2/3) ... [2019-12-27 07:53:09,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e6fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:53:09, skipping insertion in model container [2019-12-27 07:53:09,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:53:09" (3/3) ... [2019-12-27 07:53:09,300 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2019-12-27 07:53:09,311 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:53:09,311 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:53:09,320 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:53:09,321 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:53:09,350 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,350 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,351 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,351 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,352 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,352 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,352 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,353 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,353 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,353 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,353 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,354 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,354 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,354 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,355 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,355 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,355 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,355 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,360 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,360 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,360 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,361 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,368 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,369 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,369 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,369 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,371 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,372 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,372 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,372 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:09,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:53:09,408 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:53:09,408 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:53:09,409 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:53:09,409 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:53:09,409 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:53:09,409 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:53:09,409 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:53:09,410 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:53:09,424 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 07:53:09,426 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:53:09,498 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:53:09,498 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:53:09,504 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:53:09,506 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:53:09,523 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:53:09,523 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:53:09,524 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:53:09,526 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:53:09,527 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:53:10,969 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-12-27 07:53:11,149 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-27 07:53:11,149 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 07:53:11,152 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 07:53:11,163 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 07:53:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 07:53:11,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:53:11,173 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:11,174 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:11,174 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:11,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:11,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-27 07:53:11,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:11,191 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960579124] [2019-12-27 07:53:11,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:11,456 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 07:53:11,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960579124] [2019-12-27 07:53:11,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:11,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:53:11,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832996773] [2019-12-27 07:53:11,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:53:11,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:11,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:53:11,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:53:11,485 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 07:53:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:11,537 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 07:53:11,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:53:11,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:53:11,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:11,564 INFO L225 Difference]: With dead ends: 52 [2019-12-27 07:53:11,572 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 07:53:11,574 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 07:53:11,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 07:53:11,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 07:53:11,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 07:53:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 07:53:11,629 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 07:53:11,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:11,631 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 07:53:11,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:53:11,631 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 07:53:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:53:11,633 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:11,634 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:11,634 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:11,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:11,635 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-27 07:53:11,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:11,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873103647] [2019-12-27 07:53:11,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:11,735 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 07:53:11,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873103647] [2019-12-27 07:53:11,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:11,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:53:11,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898864827] [2019-12-27 07:53:11,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:53:11,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:11,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:53:11,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:53:11,738 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 07:53:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:11,768 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-27 07:53:11,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:53:11,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:53:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:11,770 INFO L225 Difference]: With dead ends: 42 [2019-12-27 07:53:11,770 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 07:53:11,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:53:11,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 07:53:11,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-27 07:53:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:53:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-27 07:53:11,778 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-27 07:53:11,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:11,779 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-27 07:53:11,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:53:11,779 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-27 07:53:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:53:11,780 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:11,780 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:11,780 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:11,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:11,781 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-27 07:53:11,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:11,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612395118] [2019-12-27 07:53:11,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:11,836 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 07:53:11,837 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612395118] [2019-12-27 07:53:11,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:11,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:53:11,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076208431] [2019-12-27 07:53:11,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:53:11,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:11,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:53:11,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:53:11,839 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-27 07:53:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:11,844 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-27 07:53:11,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:53:11,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:53:11,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:11,846 INFO L225 Difference]: With dead ends: 32 [2019-12-27 07:53:11,846 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 07:53:11,846 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 07:53:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 07:53:11,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 07:53:11,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 07:53:11,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-27 07:53:11,851 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-27 07:53:11,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:11,852 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-27 07:53:11,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:53:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-27 07:53:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:53:11,853 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:11,853 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:11,853 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:11,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:11,853 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-27 07:53:11,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:11,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963762481] [2019-12-27 07:53:11,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:11,909 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 07:53:11,910 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963762481] [2019-12-27 07:53:11,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:11,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:53:11,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675825885] [2019-12-27 07:53:11,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:53:11,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:11,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:53:11,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:53:11,912 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-27 07:53:11,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:11,969 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-27 07:53:11,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:53:11,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 07:53:11,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:11,971 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:53:11,971 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 07:53:11,972 INFO L631 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 [2019-12-27 07:53:11,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 07:53:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 07:53:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:53:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-27 07:53:11,980 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-27 07:53:11,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:11,980 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-27 07:53:11,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:53:11,982 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-27 07:53:11,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:53:11,983 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:11,983 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:11,983 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:11,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:11,984 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-27 07:53:11,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:11,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181347731] [2019-12-27 07:53:11,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:12,129 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 07:53:12,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181347731] [2019-12-27 07:53:12,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:12,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:53:12,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320540683] [2019-12-27 07:53:12,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 07:53:12,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:12,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 07:53:12,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:53:12,131 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-27 07:53:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:12,187 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-27 07:53:12,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 07:53:12,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 07:53:12,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:12,189 INFO L225 Difference]: With dead ends: 31 [2019-12-27 07:53:12,189 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 07:53:12,189 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 07:53:12,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 07:53:12,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 07:53:12,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 07:53:12,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 07:53:12,198 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-27 07:53:12,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:12,199 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 07:53:12,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 07:53:12,199 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 07:53:12,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:53:12,200 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:12,200 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:12,200 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:12,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:12,200 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-27 07:53:12,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:12,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67611567] [2019-12-27 07:53:12,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:12,331 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 07:53:12,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67611567] [2019-12-27 07:53:12,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:12,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 07:53:12,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202649969] [2019-12-27 07:53:12,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 07:53:12,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:12,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 07:53:12,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 07:53:12,339 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 6 states. [2019-12-27 07:53:12,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:12,417 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-27 07:53:12,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 07:53:12,419 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 07:53:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:12,420 INFO L225 Difference]: With dead ends: 25 [2019-12-27 07:53:12,420 INFO L226 Difference]: Without dead ends: 18 [2019-12-27 07:53:12,420 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 07:53:12,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-27 07:53:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-27 07:53:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-27 07:53:12,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-27 07:53:12,423 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-27 07:53:12,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:12,423 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-27 07:53:12,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 07:53:12,423 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-27 07:53:12,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:53:12,424 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:12,424 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:12,424 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:12,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:12,425 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-27 07:53:12,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:12,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625236011] [2019-12-27 07:53:12,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:12,458 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 07:53:12,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625236011] [2019-12-27 07:53:12,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:12,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:53:12,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058637984] [2019-12-27 07:53:12,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:53:12,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:12,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:53:12,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:53:12,460 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-12-27 07:53:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:12,473 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-27 07:53:12,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:53:12,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:53:12,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:12,474 INFO L225 Difference]: With dead ends: 17 [2019-12-27 07:53:12,474 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:53:12,474 INFO L631 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 [2019-12-27 07:53:12,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:53:12,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:53:12,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:53:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:53:12,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:53:12,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:12,475 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:53:12,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:53:12,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:53:12,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:53:12,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:53:12 BasicIcfg [2019-12-27 07:53:12,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:53:12,482 INFO L168 Benchmark]: Toolchain (without parser) took 4506.74 ms. Allocated memory was 145.2 MB in the beginning and 246.9 MB in the end (delta: 101.7 MB). Free memory was 101.2 MB in the beginning and 131.3 MB in the end (delta: -30.1 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:12,483 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 07:53:12,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.26 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.0 MB in the beginning and 156.9 MB in the end (delta: -55.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:12,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.09 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:12,485 INFO L168 Benchmark]: Boogie Preprocessor took 33.77 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 153.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:12,486 INFO L168 Benchmark]: RCFGBuilder took 432.28 ms. Allocated memory is still 201.9 MB. Free memory was 153.5 MB in the beginning and 132.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:12,487 INFO L168 Benchmark]: TraceAbstraction took 3187.16 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 132.4 MB in the beginning and 131.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:12,491 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.26 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.0 MB in the beginning and 156.9 MB in the end (delta: -55.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.09 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.77 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 153.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.28 ms. Allocated memory is still 201.9 MB. Free memory was 153.5 MB in the beginning and 132.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3187.16 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 132.4 MB in the beginning and 131.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 52 SDslu, 58 SDs, 0 SdLazy, 49 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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 proved your program to be correct! Received shutdown request...