/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:09:34,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:09:34,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:09:34,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:09:34,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:09:34,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:09:34,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:09:34,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:09:34,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:09:34,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:09:34,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:09:34,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:09:34,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:09:34,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:09:34,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:09:34,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:09:34,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:09:34,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:09:34,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:09:34,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:09:34,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:09:34,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:09:34,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:09:34,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:09:34,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 18:09:34,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 18:09:34,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 18:09:34,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 18:09:34,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 18:09:34,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 18:09:34,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:09:34,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:09:34,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:09:34,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:09:34,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:09:34,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:09:34,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:09:34,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:09:34,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:09:34,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:09:34,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:09:34,853 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf [2019-12-27 18:09:34,873 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:09:34,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:09:34,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:09:34,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:09:34,876 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:09:34,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:09:34,876 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:09:34,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:09:34,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:09:34,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:09:34,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:09:34,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:09:34,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:09:34,878 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:09:34,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:09:34,879 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:09:34,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:09:34,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:09:34,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:09:34,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:09:34,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:09:34,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:09:34,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:09:34,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:09:34,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:09:34,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:09:34,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:09:34,881 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:09:34,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:09:34,881 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:09:34,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:09:35,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:09:35,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:09:35,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:09:35,182 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:09:35,183 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:09:35,184 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2019-12-27 18:09:35,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86cf5bcce/0730dad6955a4e14af63727cb65dcd8e/FLAG7fa5fda8b [2019-12-27 18:09:35,820 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:09:35,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2019-12-27 18:09:35,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86cf5bcce/0730dad6955a4e14af63727cb65dcd8e/FLAG7fa5fda8b [2019-12-27 18:09:36,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86cf5bcce/0730dad6955a4e14af63727cb65dcd8e [2019-12-27 18:09:36,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:09:36,128 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:09:36,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:09:36,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:09:36,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:09:36,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4419eb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36, skipping insertion in model container [2019-12-27 18:09:36,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:09:36,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:09:36,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:09:36,779 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:09:36,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:09:36,903 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:09:36,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36 WrapperNode [2019-12-27 18:09:36,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:09:36,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:09:36,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:09:36,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:09:36,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:09:36,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:09:36,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:09:36,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:09:36,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... [2019-12-27 18:09:36,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:09:36,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:09:36,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:09:36,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:09:36,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:09:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:09:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:09:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:09:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:09:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:09:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:09:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:09:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:09:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:09:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:09:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:09:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:09:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:09:37,058 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:09:37,427 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:09:37,428 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:09:37,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:09:37 BoogieIcfgContainer [2019-12-27 18:09:37,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:09:37,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:09:37,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:09:37,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:09:37,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:09:36" (1/3) ... [2019-12-27 18:09:37,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104815d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:09:37, skipping insertion in model container [2019-12-27 18:09:37,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:09:36" (2/3) ... [2019-12-27 18:09:37,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104815d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:09:37, skipping insertion in model container [2019-12-27 18:09:37,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:09:37" (3/3) ... [2019-12-27 18:09:37,438 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2019-12-27 18:09:37,449 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:09:37,449 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:09:37,457 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:09:37,458 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:09:37,487 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,487 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,488 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,488 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,489 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,489 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,489 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,490 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,490 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,491 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,491 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,491 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,492 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,492 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,492 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,493 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,497 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,497 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,498 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,498 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,505 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,505 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,506 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,506 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,509 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,510 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,510 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,510 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:09:37,525 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:09:37,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:09:37,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:09:37,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:09:37,541 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:09:37,541 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:09:37,541 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:09:37,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:09:37,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:09:37,554 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 18:09:37,556 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:09:37,599 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:09:37,599 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:09:37,605 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:09:37,608 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:09:37,626 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:09:37,627 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:09:37,628 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:09:37,630 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:09:37,631 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:09:39,127 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 18:09:39,261 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 18:09:39,262 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 18:09:39,265 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:09:39,276 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:09:39,278 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:09:39,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:09:39,285 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:09:39,286 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:09:39,286 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:09:39,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:09:39,293 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-27 18:09:39,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:09:39,303 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301185678] [2019-12-27 18:09:39,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:09:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:09:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:09:39,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301185678] [2019-12-27 18:09:39,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:09:39,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:09:39,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [184473027] [2019-12-27 18:09:39,531 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:09:39,538 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:09:39,551 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:09:39,551 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:09:39,554 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:09:39,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:09:39,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:09:39,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:09:39,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:09:39,572 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:09:39,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:09:39,599 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 18:09:39,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:09:39,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:09:39,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:09:39,628 INFO L225 Difference]: With dead ends: 42 [2019-12-27 18:09:39,628 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 18:09:39,629 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:09:39,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 18:09:39,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 18:09:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:09:39,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 18:09:39,666 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 18:09:39,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:09:39,667 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 18:09:39,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:09:39,668 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 18:09:39,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:09:39,668 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:09:39,669 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:09:39,669 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:09:39,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:09:39,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1826755775, now seen corresponding path program 1 times [2019-12-27 18:09:39,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:09:39,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733786133] [2019-12-27 18:09:39,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:09:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:09:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:09:39,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733786133] [2019-12-27 18:09:39,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:09:39,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:09:39,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1955870470] [2019-12-27 18:09:39,768 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:09:39,769 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:09:39,772 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:09:39,772 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:09:39,772 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:09:39,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:09:39,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:09:39,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:09:39,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:09:39,775 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 18:09:39,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:09:39,801 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 18:09:39,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:09:39,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:09:39,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:09:39,803 INFO L225 Difference]: With dead ends: 36 [2019-12-27 18:09:39,803 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 18:09:39,804 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 18:09:39,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 18:09:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 18:09:39,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 18:09:39,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 18:09:39,809 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 18:09:39,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:09:39,810 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 18:09:39,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:09:39,810 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 18:09:39,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:09:39,811 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:09:39,811 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:09:39,811 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:09:39,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:09:39,812 INFO L82 PathProgramCache]: Analyzing trace with hash -794534279, now seen corresponding path program 1 times [2019-12-27 18:09:39,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:09:39,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109869659] [2019-12-27 18:09:39,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:09:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:09:39,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:09:39,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109869659] [2019-12-27 18:09:39,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:09:39,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:09:39,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [325208225] [2019-12-27 18:09:39,883 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:09:39,884 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:09:39,888 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:09:39,891 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:09:39,892 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:09:39,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:09:39,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:09:39,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:09:39,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:09:39,894 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 18:09:39,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:09:39,902 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 18:09:39,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:09:39,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 18:09:39,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:09:39,903 INFO L225 Difference]: With dead ends: 27 [2019-12-27 18:09:39,904 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 18:09:39,904 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:09:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 18:09:39,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 18:09:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 18:09:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 18:09:39,911 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 18:09:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:09:39,911 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 18:09:39,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:09:39,911 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 18:09:39,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:09:39,912 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:09:39,912 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:09:39,913 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:09:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:09:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1700901458, now seen corresponding path program 1 times [2019-12-27 18:09:39,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:09:39,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581172294] [2019-12-27 18:09:39,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:09:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:09:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:09:40,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581172294] [2019-12-27 18:09:40,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:09:40,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:09:40,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1599576305] [2019-12-27 18:09:40,026 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:09:40,028 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:09:40,032 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 18:09:40,032 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:09:40,032 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:09:40,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:09:40,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:09:40,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:09:40,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:09:40,034 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 18:09:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:09:40,058 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 18:09:40,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:09:40,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:09:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:09:40,060 INFO L225 Difference]: With dead ends: 29 [2019-12-27 18:09:40,060 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 18:09:40,060 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 18:09:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 18:09:40,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 18:09:40,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 18:09:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 18:09:40,066 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 18:09:40,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:09:40,066 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 18:09:40,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:09:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 18:09:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:09:40,067 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:09:40,067 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:09:40,067 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:09:40,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:09:40,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-27 18:09:40,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:09:40,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785937481] [2019-12-27 18:09:40,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:09:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:09:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:09:40,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785937481] [2019-12-27 18:09:40,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:09:40,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:09:40,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1839200637] [2019-12-27 18:09:40,135 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:09:40,137 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:09:40,139 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:09:40,139 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:09:40,174 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:09:40,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:09:40,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:09:40,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:09:40,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:09:40,176 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2019-12-27 18:09:40,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:09:40,194 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 18:09:40,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:09:40,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:09:40,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:09:40,195 INFO L225 Difference]: With dead ends: 16 [2019-12-27 18:09:40,195 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:09:40,195 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 18:09:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:09:40,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:09:40,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:09:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:09:40,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:09:40,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:09:40,197 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:09:40,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:09:40,197 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:09:40,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:09:40,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:09:40 BasicIcfg [2019-12-27 18:09:40,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:09:40,204 INFO L168 Benchmark]: Toolchain (without parser) took 4076.59 ms. Allocated memory was 143.1 MB in the beginning and 251.7 MB in the end (delta: 108.5 MB). Free memory was 99.8 MB in the beginning and 136.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 71.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:09:40,205 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 18:09:40,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.98 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 99.3 MB in the beginning and 156.7 MB in the end (delta: -57.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:09:40,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.25 ms. Allocated memory is still 200.3 MB. Free memory was 156.7 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:09:40,207 INFO L168 Benchmark]: Boogie Preprocessor took 25.53 ms. Allocated memory is still 200.3 MB. Free memory was 154.6 MB in the beginning and 153.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:09:40,208 INFO L168 Benchmark]: RCFGBuilder took 437.49 ms. Allocated memory is still 200.3 MB. Free memory was 153.3 MB in the beginning and 132.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:09:40,209 INFO L168 Benchmark]: TraceAbstraction took 2771.15 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 132.2 MB in the beginning and 136.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2019-12-27 18:09:40,213 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.98 ms. Allocated memory was 143.1 MB in the beginning and 200.3 MB in the end (delta: 57.1 MB). Free memory was 99.3 MB in the beginning and 156.7 MB in the end (delta: -57.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.25 ms. Allocated memory is still 200.3 MB. Free memory was 156.7 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.53 ms. Allocated memory is still 200.3 MB. Free memory was 154.6 MB in the beginning and 153.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.49 ms. Allocated memory is still 200.3 MB. Free memory was 153.3 MB in the beginning and 132.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2771.15 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 132.2 MB in the beginning and 136.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...