/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:04:48,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:04:48,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:04:48,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:04:48,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:04:48,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:04:48,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:04:48,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:04:48,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:04:48,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:04:48,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:04:48,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:04:48,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:04:48,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:04:48,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:04:48,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:04:48,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:04:48,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:04:48,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:04:48,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:04:48,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:04:48,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:04:48,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:04:48,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:04:48,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:04:48,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:04:48,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:04:48,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:04:48,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:04:48,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:04:48,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:04:48,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:04:48,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:04:48,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:04:48,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:04:48,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:04:48,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:04:48,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:04:48,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:04:48,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:04:48,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:04:48,825 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-NoLbe.epf [2019-12-19 05:04:48,839 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:04:48,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:04:48,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:04:48,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:04:48,841 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:04:48,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:04:48,842 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:04:48,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:04:48,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:04:48,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:04:48,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:04:48,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:04:48,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:04:48,843 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:04:48,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:04:48,843 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:04:48,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:04:48,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:04:48,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:04:48,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:04:48,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:04:48,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:04:48,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:04:48,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:04:48,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:04:48,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:04:48,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:04:48,846 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:04:48,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:04:48,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:04:49,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:04:49,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:04:49,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:04:49,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:04:49,139 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:04:49,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2019-12-19 05:04:49,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6925561af/03691671b44b422e8a22937cf6a8f497/FLAG40e519f2d [2019-12-19 05:04:49,781 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:04:49,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2019-12-19 05:04:49,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6925561af/03691671b44b422e8a22937cf6a8f497/FLAG40e519f2d [2019-12-19 05:04:50,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6925561af/03691671b44b422e8a22937cf6a8f497 [2019-12-19 05:04:50,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:04:50,083 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:04:50,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:04:50,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:04:50,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:04:50,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c8690e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50, skipping insertion in model container [2019-12-19 05:04:50,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:04:50,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:04:50,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:04:50,720 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:04:50,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:04:50,874 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:04:50,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50 WrapperNode [2019-12-19 05:04:50,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:04:50,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:04:50,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:04:50,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:04:50,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:04:50,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:04:50,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:04:50,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:04:50,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (1/1) ... [2019-12-19 05:04:50,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:04:50,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:04:50,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:04:50,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:04:50,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (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 [2019-12-19 05:04:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:04:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:04:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:04:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:04:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:04:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:04:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:04:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:04:51,009 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:04:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:04:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:04:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:04:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:04:51,012 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:04:51,399 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:04:51,399 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:04:51,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:04:51 BoogieIcfgContainer [2019-12-19 05:04:51,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:04:51,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:04:51,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:04:51,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:04:51,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:04:50" (1/3) ... [2019-12-19 05:04:51,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc34d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:04:51, skipping insertion in model container [2019-12-19 05:04:51,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:04:50" (2/3) ... [2019-12-19 05:04:51,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc34d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:04:51, skipping insertion in model container [2019-12-19 05:04:51,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:04:51" (3/3) ... [2019-12-19 05:04:51,413 INFO L109 eAbstractionObserver]: Analyzing ICFG safe023_tso.oepc.i [2019-12-19 05:04:51,424 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:04:51,424 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:04:51,433 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:04:51,434 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:04:51,461 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,461 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,462 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,462 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,462 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,463 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,463 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,463 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,464 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,464 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,464 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,465 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,465 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,465 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,466 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,466 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,466 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,466 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,470 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,471 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,471 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,471 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,477 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,477 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,478 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,478 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,480 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,481 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,481 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,481 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:04:51,499 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:04:51,515 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:04:51,515 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:04:51,515 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:04:51,515 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:04:51,515 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:04:51,515 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:04:51,516 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:04:51,516 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:04:51,527 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:04:51,608 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:04:51,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:04:51,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:04:51,637 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:04:51,638 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:04:51,638 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:04:51,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:04:51,646 INFO L82 PathProgramCache]: Analyzing trace with hash -2051529162, now seen corresponding path program 1 times [2019-12-19 05:04:51,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:04:51,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461499131] [2019-12-19 05:04:51,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:04:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:04:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:04:52,082 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461499131] [2019-12-19 05:04:52,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:04:52,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:04:52,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199806833] [2019-12-19 05:04:52,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:04:52,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:04:52,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:04:52,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:04:52,112 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:04:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:04:52,279 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:04:52,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:04:52,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:04:52,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:04:52,306 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:04:52,306 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:04:52,308 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:04:52,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:04:52,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:04:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:04:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:04:52,419 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:04:52,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:04:52,419 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:04:52,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:04:52,420 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:04:52,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:04:52,423 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:04:52,423 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:04:52,423 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:04:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:04:52,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1995748591, now seen corresponding path program 1 times [2019-12-19 05:04:52,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:04:52,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018660515] [2019-12-19 05:04:52,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:04:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:04:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:04:52,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018660515] [2019-12-19 05:04:52,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:04:52,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:04:52,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993647992] [2019-12-19 05:04:52,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:04:52,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:04:52,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:04:52,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:04:52,606 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:04:52,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:04:52,678 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:04:52,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:04:52,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:04:52,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:04:52,685 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:04:52,685 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:04:52,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:04:52,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:04:52,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:04:52,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:04:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:04:52,720 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:04:52,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:04:52,721 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:04:52,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:04:52,721 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:04:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:04:52,723 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:04:52,723 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:04:52,723 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:04:52,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:04:52,724 INFO L82 PathProgramCache]: Analyzing trace with hash -505047863, now seen corresponding path program 1 times [2019-12-19 05:04:52,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:04:52,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679327373] [2019-12-19 05:04:52,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:04:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:04:52,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:04:52,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679327373] [2019-12-19 05:04:52,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:04:52,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:04:52,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600315105] [2019-12-19 05:04:52,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:04:52,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:04:52,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:04:52,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:04:52,897 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:04:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:04:52,997 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:04:52,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:04:52,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:04:52,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:04:53,001 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:04:53,001 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:04:53,002 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:04:53,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:04:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:04:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:04:53,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:04:53,019 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:04:53,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:04:53,019 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:04:53,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:04:53,020 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:04:53,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:04:53,024 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:04:53,025 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:04:53,025 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:04:53,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:04:53,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1707713269, now seen corresponding path program 1 times [2019-12-19 05:04:53,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:04:53,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801452909] [2019-12-19 05:04:53,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:04:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:04:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:04:53,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801452909] [2019-12-19 05:04:53,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:04:53,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:04:53,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463728073] [2019-12-19 05:04:53,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:04:53,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:04:53,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:04:53,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:04:53,265 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-19 05:04:53,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:04:53,624 INFO L93 Difference]: Finished difference Result 889 states and 2418 transitions. [2019-12-19 05:04:53,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-19 05:04:53,625 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:04:53,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:04:53,628 INFO L225 Difference]: With dead ends: 889 [2019-12-19 05:04:53,628 INFO L226 Difference]: Without dead ends: 280 [2019-12-19 05:04:53,630 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2019-12-19 05:04:53,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-19 05:04:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-12-19 05:04:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-19 05:04:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-19 05:04:53,659 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-19 05:04:53,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:04:53,660 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-19 05:04:53,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:04:53,660 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-19 05:04:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:04:53,661 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:04:53,661 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:04:53,662 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:04:53,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:04:53,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1612310977, now seen corresponding path program 2 times [2019-12-19 05:04:53,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:04:53,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34607734] [2019-12-19 05:04:53,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:04:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:04:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:04:53,822 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34607734] [2019-12-19 05:04:53,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:04:53,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:04:53,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330953301] [2019-12-19 05:04:53,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:04:53,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:04:53,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:04:53,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:04:53,825 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 8 states. [2019-12-19 05:04:53,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:04:53,934 INFO L93 Difference]: Finished difference Result 226 states and 564 transitions. [2019-12-19 05:04:53,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:04:53,934 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:04:53,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:04:53,935 INFO L225 Difference]: With dead ends: 226 [2019-12-19 05:04:53,935 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:04:53,935 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:04:53,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:04:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:04:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:04:53,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:04:53,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:04:53,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:04:53,937 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:04:53,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:04:53,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:04:53,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:04:53,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:04:53 BasicIcfg [2019-12-19 05:04:53,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:04:53,946 INFO L168 Benchmark]: Toolchain (without parser) took 3863.57 ms. Allocated memory was 137.9 MB in the beginning and 251.1 MB in the end (delta: 113.2 MB). Free memory was 101.4 MB in the beginning and 181.4 MB in the end (delta: -80.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:04:53,947 INFO L168 Benchmark]: CDTParser took 1.71 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:04:53,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.65 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.0 MB in the beginning and 157.0 MB in the end (delta: -56.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:04:53,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.62 ms. Allocated memory is still 201.9 MB. Free memory was 157.0 MB in the beginning and 155.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:04:53,950 INFO L168 Benchmark]: Boogie Preprocessor took 25.80 ms. Allocated memory is still 201.9 MB. Free memory was 155.0 MB in the beginning and 153.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:04:53,951 INFO L168 Benchmark]: RCFGBuilder took 447.58 ms. Allocated memory is still 201.9 MB. Free memory was 153.0 MB in the beginning and 132.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:04:53,956 INFO L168 Benchmark]: TraceAbstraction took 2541.45 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 132.8 MB in the beginning and 181.4 MB in the end (delta: -48.6 MB). Peak memory consumption was 635.6 kB. Max. memory is 7.1 GB. [2019-12-19 05:04:53,963 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.71 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.65 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.0 MB in the beginning and 157.0 MB in the end (delta: -56.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.62 ms. Allocated memory is still 201.9 MB. Free memory was 157.0 MB in the beginning and 155.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.80 ms. Allocated memory is still 201.9 MB. Free memory was 155.0 MB in the beginning and 153.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.58 ms. Allocated memory is still 201.9 MB. Free memory was 153.0 MB in the beginning and 132.8 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2541.45 ms. Allocated memory was 201.9 MB in the beginning and 251.1 MB in the end (delta: 49.3 MB). Free memory was 132.8 MB in the beginning and 181.4 MB in the end (delta: -48.6 MB). Peak memory consumption was 635.6 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 357 SDslu, 711 SDs, 0 SdLazy, 108 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15831 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...