/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 23:10:14,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 23:10:14,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 23:10:14,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 23:10:14,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 23:10:14,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 23:10:14,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 23:10:14,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 23:10:14,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 23:10:14,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 23:10:14,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 23:10:14,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 23:10:14,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 23:10:14,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 23:10:14,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 23:10:14,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 23:10:14,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 23:10:14,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 23:10:14,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 23:10:14,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 23:10:14,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 23:10:14,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 23:10:14,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 23:10:14,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 23:10:14,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 23:10:14,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 23:10:14,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 23:10:14,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 23:10:14,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 23:10:14,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 23:10:14,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 23:10:14,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 23:10:14,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 23:10:14,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 23:10:14,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 23:10:14,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 23:10:14,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 23:10:14,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 23:10:14,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 23:10:14,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 23:10:14,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 23:10:14,902 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-18 23:10:14,917 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 23:10:14,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 23:10:14,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 23:10:14,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 23:10:14,918 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 23:10:14,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 23:10:14,919 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 23:10:14,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 23:10:14,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 23:10:14,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 23:10:14,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 23:10:14,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 23:10:14,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 23:10:14,920 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 23:10:14,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 23:10:14,921 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 23:10:14,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 23:10:14,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 23:10:14,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 23:10:14,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 23:10:14,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 23:10:14,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 23:10:14,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 23:10:14,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 23:10:14,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 23:10:14,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 23:10:14,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 23:10:14,923 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 23:10:14,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 23:10:14,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 23:10:15,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 23:10:15,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 23:10:15,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 23:10:15,277 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 23:10:15,277 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 23:10:15,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2019-12-18 23:10:15,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca88f548e/e7de301bf5ae403fbe5f76b859ed44f5/FLAGb62b82866 [2019-12-18 23:10:15,886 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 23:10:15,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2019-12-18 23:10:15,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca88f548e/e7de301bf5ae403fbe5f76b859ed44f5/FLAGb62b82866 [2019-12-18 23:10:16,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca88f548e/e7de301bf5ae403fbe5f76b859ed44f5 [2019-12-18 23:10:16,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 23:10:16,200 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 23:10:16,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 23:10:16,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 23:10:16,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 23:10:16,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:16,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ceb2709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16, skipping insertion in model container [2019-12-18 23:10:16,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:16,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 23:10:16,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 23:10:16,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:10:16,783 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 23:10:16,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:10:16,941 INFO L208 MainTranslator]: Completed translation [2019-12-18 23:10:16,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16 WrapperNode [2019-12-18 23:10:16,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 23:10:16,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 23:10:16,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 23:10:16,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 23:10:16,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:16,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:17,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 23:10:17,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 23:10:17,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 23:10:17,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 23:10:17,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:17,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:17,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:17,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:17,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:17,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:17,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (1/1) ... [2019-12-18 23:10:17,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 23:10:17,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 23:10:17,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 23:10:17,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 23:10:17,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (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 [2019-12-18 23:10:17,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 23:10:17,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 23:10:17,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 23:10:17,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 23:10:17,092 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 23:10:17,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 23:10:17,092 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 23:10:17,092 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 23:10:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 23:10:17,093 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 23:10:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 23:10:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 23:10:17,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 23:10:17,095 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 23:10:17,489 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 23:10:17,490 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 23:10:17,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:10:17 BoogieIcfgContainer [2019-12-18 23:10:17,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 23:10:17,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 23:10:17,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 23:10:17,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 23:10:17,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:10:16" (1/3) ... [2019-12-18 23:10:17,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e058c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:10:17, skipping insertion in model container [2019-12-18 23:10:17,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:10:16" (2/3) ... [2019-12-18 23:10:17,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e058c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:10:17, skipping insertion in model container [2019-12-18 23:10:17,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:10:17" (3/3) ... [2019-12-18 23:10:17,500 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2019-12-18 23:10:17,510 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 23:10:17,510 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 23:10:17,517 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 23:10:17,518 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 23:10:17,546 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,547 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,547 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,547 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,548 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,548 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,548 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,549 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,549 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,549 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,549 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,550 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,550 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,550 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,551 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,551 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,551 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,552 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,556 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,556 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,556 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,557 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,563 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,564 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,564 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,564 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,567 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,568 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,568 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,568 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:10:17,584 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 23:10:17,602 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 23:10:17,603 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 23:10:17,603 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 23:10:17,603 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 23:10:17,603 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 23:10:17,603 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 23:10:17,603 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 23:10:17,604 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 23:10:17,616 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-18 23:10:17,618 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 23:10:17,656 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 23:10:17,656 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 23:10:17,663 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. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 23:10:17,667 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 23:10:17,685 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 23:10:17,686 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 23:10:17,687 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. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 23:10:17,689 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 23:10:17,690 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 23:10:19,037 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-18 23:10:19,197 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-18 23:10:19,198 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 23:10:19,203 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 23:10:19,217 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 23:10:19,221 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 23:10:19,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 23:10:19,232 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:10:19,233 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:10:19,234 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:10:19,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:10:19,243 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-18 23:10:19,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:10:19,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762102088] [2019-12-18 23:10:19,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:10:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:10:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:10:19,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762102088] [2019-12-18 23:10:19,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:10:19,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 23:10:19,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971215739] [2019-12-18 23:10:19,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:10:19,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:10:19,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:10:19,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:10:19,616 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 23:10:19,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:10:19,655 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 23:10:19,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:10:19,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 23:10:19,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:10:19,688 INFO L225 Difference]: With dead ends: 42 [2019-12-18 23:10:19,689 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 23:10:19,693 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 [2019-12-18 23:10:19,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 23:10:19,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 23:10:19,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 23:10:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 23:10:19,736 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 23:10:19,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:10:19,737 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 23:10:19,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:10:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 23:10:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 23:10:19,738 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:10:19,738 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:10:19,739 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:10:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:10:19,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1392638966, now seen corresponding path program 1 times [2019-12-18 23:10:19,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:10:19,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969371308] [2019-12-18 23:10:19,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:10:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:10:19,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:10:19,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969371308] [2019-12-18 23:10:19,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:10:19,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 23:10:19,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869540870] [2019-12-18 23:10:19,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 23:10:19,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:10:19,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 23:10:19,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:10:19,819 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 23:10:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:10:19,857 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 23:10:19,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 23:10:19,860 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 23:10:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:10:19,862 INFO L225 Difference]: With dead ends: 36 [2019-12-18 23:10:19,862 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 23:10:19,863 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 [2019-12-18 23:10:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 23:10:19,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 23:10:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 23:10:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 23:10:19,872 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 23:10:19,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:10:19,872 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 23:10:19,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 23:10:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 23:10:19,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 23:10:19,873 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:10:19,873 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:10:19,873 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:10:19,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:10:19,874 INFO L82 PathProgramCache]: Analyzing trace with hash -794773568, now seen corresponding path program 1 times [2019-12-18 23:10:19,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:10:19,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3334716] [2019-12-18 23:10:19,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:10:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:10:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:10:19,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3334716] [2019-12-18 23:10:19,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:10:19,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 23:10:19,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084452967] [2019-12-18 23:10:19,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:10:19,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:10:19,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:10:19,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:10:19,978 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 3 states. [2019-12-18 23:10:19,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:10:19,986 INFO L93 Difference]: Finished difference Result 21 states and 31 transitions. [2019-12-18 23:10:19,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:10:19,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 23:10:19,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:10:19,987 INFO L225 Difference]: With dead ends: 21 [2019-12-18 23:10:19,987 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 23:10:19,988 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 [2019-12-18 23:10:19,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 23:10:19,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 23:10:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 23:10:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-18 23:10:19,991 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-18 23:10:19,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:10:19,991 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-18 23:10:19,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:10:19,992 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-18 23:10:19,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 23:10:19,992 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:10:19,993 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:10:19,993 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:10:19,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:10:19,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1131912426, now seen corresponding path program 1 times [2019-12-18 23:10:19,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:10:19,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492560819] [2019-12-18 23:10:19,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:10:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:10:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:10:20,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492560819] [2019-12-18 23:10:20,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:10:20,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 23:10:20,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374524072] [2019-12-18 23:10:20,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 23:10:20,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:10:20,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 23:10:20,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:10:20,070 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-18 23:10:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:10:20,093 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 23:10:20,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 23:10:20,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 23:10:20,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:10:20,094 INFO L225 Difference]: With dead ends: 25 [2019-12-18 23:10:20,094 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 23:10:20,094 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 [2019-12-18 23:10:20,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 23:10:20,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 23:10:20,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 23:10:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 23:10:20,099 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-18 23:10:20,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:10:20,099 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 23:10:20,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 23:10:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 23:10:20,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 23:10:20,101 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:10:20,101 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:10:20,102 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:10:20,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:10:20,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-18 23:10:20,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:10:20,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586590014] [2019-12-18 23:10:20,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:10:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:10:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:10:20,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586590014] [2019-12-18 23:10:20,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:10:20,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 23:10:20,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538712598] [2019-12-18 23:10:20,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 23:10:20,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:10:20,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 23:10:20,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:10:20,170 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 23:10:20,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:10:20,185 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 23:10:20,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 23:10:20,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 23:10:20,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:10:20,186 INFO L225 Difference]: With dead ends: 16 [2019-12-18 23:10:20,186 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 23:10:20,187 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 [2019-12-18 23:10:20,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 23:10:20,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 23:10:20,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 23:10:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 23:10:20,187 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 23:10:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:10:20,188 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 23:10:20,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 23:10:20,188 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 23:10:20,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 23:10:20,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:10:20 BasicIcfg [2019-12-18 23:10:20,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 23:10:20,194 INFO L168 Benchmark]: Toolchain (without parser) took 3994.81 ms. Allocated memory was 135.8 MB in the beginning and 252.2 MB in the end (delta: 116.4 MB). Free memory was 99.2 MB in the beginning and 165.7 MB in the end (delta: -66.5 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. [2019-12-18 23:10:20,195 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 23:10:20,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.66 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 98.8 MB in the beginning and 156.0 MB in the end (delta: -57.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-18 23:10:20,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.46 ms. Allocated memory is still 199.2 MB. Free memory was 156.0 MB in the beginning and 153.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-18 23:10:20,198 INFO L168 Benchmark]: Boogie Preprocessor took 28.44 ms. Allocated memory is still 199.2 MB. Free memory was 153.9 MB in the beginning and 152.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 23:10:20,199 INFO L168 Benchmark]: RCFGBuilder took 452.48 ms. Allocated memory is still 199.2 MB. Free memory was 152.5 MB in the beginning and 131.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-18 23:10:20,199 INFO L168 Benchmark]: TraceAbstraction took 2699.93 ms. Allocated memory was 199.2 MB in the beginning and 252.2 MB in the end (delta: 53.0 MB). Free memory was 131.5 MB in the beginning and 165.7 MB in the end (delta: -34.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2019-12-18 23:10:20,204 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.66 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 98.8 MB in the beginning and 156.0 MB in the end (delta: -57.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.46 ms. Allocated memory is still 199.2 MB. Free memory was 156.0 MB in the beginning and 153.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.44 ms. Allocated memory is still 199.2 MB. Free memory was 153.9 MB in the beginning and 152.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.48 ms. Allocated memory is still 199.2 MB. Free memory was 152.5 MB in the beginning and 131.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2699.93 ms. Allocated memory was 199.2 MB in the beginning and 252.2 MB in the end (delta: 53.0 MB). Free memory was 131.5 MB in the beginning and 165.7 MB in the end (delta: -34.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 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, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 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: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 25 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 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, 0.3s 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...