/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/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 23:04:41,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 23:04:41,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 23:04:41,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 23:04:41,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 23:04:41,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 23:04:41,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 23:04:41,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 23:04:41,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 23:04:41,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 23:04:41,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 23:04:41,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 23:04:41,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 23:04:41,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 23:04:41,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 23:04:41,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 23:04:41,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 23:04:41,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 23:04:41,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 23:04:41,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 23:04:41,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 23:04:41,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 23:04:41,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 23:04:41,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 23:04:41,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 23:04:41,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 23:04:41,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 23:04:41,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 23:04:41,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 23:04:41,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 23:04:41,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 23:04:41,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 23:04:41,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 23:04:41,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 23:04:41,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 23:04:41,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 23:04:41,894 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 23:04:41,921 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 23:04:41,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 23:04:41,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 23:04:41,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 23:04:41,923 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 23:04:41,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 23:04:41,923 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 23:04:41,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 23:04:41,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 23:04:41,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 23:04:41,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 23:04:41,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 23:04:41,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 23:04:41,925 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 23:04:41,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 23:04:41,925 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 23:04:41,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 23:04:41,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 23:04:41,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 23:04:41,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 23:04:41,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 23:04:41,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 23:04:41,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 23:04:41,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 23:04:41,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 23:04:41,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 23:04:41,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 23:04:41,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 23:04:41,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 23:04:41,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 23:04:42,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 23:04:42,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 23:04:42,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 23:04:42,223 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 23:04:42,224 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 23:04:42,224 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-18 23:04:42,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d082929/8c5d04d1250744a0a6e5b9a7fc188031/FLAG28a1cbce9 [2019-12-18 23:04:42,792 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 23:04:42,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-18 23:04:42,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d082929/8c5d04d1250744a0a6e5b9a7fc188031/FLAG28a1cbce9 [2019-12-18 23:04:43,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d082929/8c5d04d1250744a0a6e5b9a7fc188031 [2019-12-18 23:04:43,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 23:04:43,073 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 23:04:43,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 23:04:43,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 23:04:43,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 23:04:43,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cc43a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43, skipping insertion in model container [2019-12-18 23:04:43,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 23:04:43,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 23:04:43,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:04:43,634 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 23:04:43,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:04:43,824 INFO L208 MainTranslator]: Completed translation [2019-12-18 23:04:43,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43 WrapperNode [2019-12-18 23:04:43,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 23:04:43,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 23:04:43,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 23:04:43,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 23:04:43,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 23:04:43,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 23:04:43,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 23:04:43,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 23:04:43,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (1/1) ... [2019-12-18 23:04:43,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 23:04:43,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 23:04:43,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 23:04:43,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 23:04:43,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (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 23:04:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 23:04:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 23:04:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 23:04:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 23:04:44,007 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 23:04:44,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 23:04:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 23:04:44,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 23:04:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 23:04:44,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 23:04:44,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 23:04:44,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 23:04:44,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 23:04:44,010 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 23:04:44,385 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 23:04:44,386 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 23:04:44,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:04:44 BoogieIcfgContainer [2019-12-18 23:04:44,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 23:04:44,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 23:04:44,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 23:04:44,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 23:04:44,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:04:43" (1/3) ... [2019-12-18 23:04:44,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509a42bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:04:44, skipping insertion in model container [2019-12-18 23:04:44,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:04:43" (2/3) ... [2019-12-18 23:04:44,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509a42bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:04:44, skipping insertion in model container [2019-12-18 23:04:44,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:04:44" (3/3) ... [2019-12-18 23:04:44,398 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2019-12-18 23:04:44,407 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 23:04:44,408 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 23:04:44,417 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 23:04:44,417 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 23:04:44,446 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,446 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,447 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,447 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,448 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,448 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,448 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,448 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,449 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,449 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,449 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,450 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,450 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,450 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,450 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,451 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,451 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,451 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,455 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,456 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,456 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,456 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,462 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,463 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,463 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,464 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,466 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,466 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,467 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,467 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:04:44,482 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 23:04:44,500 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 23:04:44,500 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 23:04:44,500 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 23:04:44,500 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 23:04:44,500 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 23:04:44,501 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 23:04:44,501 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 23:04:44,501 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 23:04:44,514 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 23:04:44,516 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 23:04:44,565 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 23:04:44,566 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 23:04:44,578 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 23:04:44,583 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 23:04:44,602 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 23:04:44,602 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 23:04:44,603 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 23:04:44,605 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 23:04:44,606 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 23:04:45,931 INFO L206 etLargeBlockEncoding]: Checked pairs total: 469 [2019-12-18 23:04:45,931 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 23:04:45,935 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 23:04:45,947 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 23:04:45,950 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 23:04:45,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 23:04:45,958 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:04:45,959 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:04:45,960 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:04:45,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:04:45,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1445202822, now seen corresponding path program 1 times [2019-12-18 23:04:45,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:04:45,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937537775] [2019-12-18 23:04:45,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:04:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:04:46,359 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 23:04:46,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937537775] [2019-12-18 23:04:46,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:04:46,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 23:04:46,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745528908] [2019-12-18 23:04:46,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:04:46,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:04:46,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:04:46,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:04:46,385 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 23:04:46,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:04:46,425 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-18 23:04:46,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:04:46,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 23:04:46,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:04:46,442 INFO L225 Difference]: With dead ends: 52 [2019-12-18 23:04:46,442 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 23:04:46,444 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 23:04:46,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 23:04:46,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 23:04:46,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 23:04:46,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 23:04:46,498 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 23:04:46,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:04:46,500 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 23:04:46,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:04:46,500 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 23:04:46,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 23:04:46,502 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:04:46,503 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:04:46,503 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:04:46,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:04:46,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1859739782, now seen corresponding path program 1 times [2019-12-18 23:04:46,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:04:46,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773317669] [2019-12-18 23:04:46,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:04:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:04:46,582 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 23:04:46,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773317669] [2019-12-18 23:04:46,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:04:46,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 23:04:46,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650741807] [2019-12-18 23:04:46,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:04:46,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:04:46,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:04:46,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:04:46,586 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 23:04:46,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:04:46,605 INFO L93 Difference]: Finished difference Result 40 states and 69 transitions. [2019-12-18 23:04:46,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:04:46,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 23:04:46,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:04:46,611 INFO L225 Difference]: With dead ends: 40 [2019-12-18 23:04:46,611 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 23:04:46,612 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:04:46,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 23:04:46,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-18 23:04:46,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 23:04:46,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 60 transitions. [2019-12-18 23:04:46,621 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 60 transitions. Word has length 9 [2019-12-18 23:04:46,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:04:46,622 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 60 transitions. [2019-12-18 23:04:46,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:04:46,622 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2019-12-18 23:04:46,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 23:04:46,623 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:04:46,623 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:04:46,623 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:04:46,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:04:46,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1851665460, now seen corresponding path program 1 times [2019-12-18 23:04:46,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:04:46,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836554650] [2019-12-18 23:04:46,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:04:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:04:46,687 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 23:04:46,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836554650] [2019-12-18 23:04:46,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:04:46,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 23:04:46,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143166686] [2019-12-18 23:04:46,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:04:46,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:04:46,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:04:46,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:04:46,689 INFO L87 Difference]: Start difference. First operand 34 states and 60 transitions. Second operand 3 states. [2019-12-18 23:04:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:04:46,703 INFO L93 Difference]: Finished difference Result 36 states and 57 transitions. [2019-12-18 23:04:46,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:04:46,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 23:04:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:04:46,704 INFO L225 Difference]: With dead ends: 36 [2019-12-18 23:04:46,705 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 23:04:46,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:04:46,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 23:04:46,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 23:04:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 23:04:46,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-12-18 23:04:46,709 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 9 [2019-12-18 23:04:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:04:46,711 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-12-18 23:04:46,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:04:46,712 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2019-12-18 23:04:46,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 23:04:46,712 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:04:46,712 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:04:46,713 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:04:46,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:04:46,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1567103428, now seen corresponding path program 1 times [2019-12-18 23:04:46,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:04:46,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973839898] [2019-12-18 23:04:46,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:04:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:04:46,824 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 23:04:46,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973839898] [2019-12-18 23:04:46,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:04:46,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 23:04:46,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319137637] [2019-12-18 23:04:46,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 23:04:46,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:04:46,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 23:04:46,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 23:04:46,830 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand 6 states. [2019-12-18 23:04:46,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:04:46,908 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2019-12-18 23:04:46,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 23:04:46,909 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 23:04:46,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:04:46,910 INFO L225 Difference]: With dead ends: 22 [2019-12-18 23:04:46,910 INFO L226 Difference]: Without dead ends: 14 [2019-12-18 23:04:46,911 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 23:04:46,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-18 23:04:46,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-18 23:04:46,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-18 23:04:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-18 23:04:46,914 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2019-12-18 23:04:46,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:04:46,915 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-18 23:04:46,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 23:04:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-18 23:04:46,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 23:04:46,915 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:04:46,915 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:04:46,916 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:04:46,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:04:46,916 INFO L82 PathProgramCache]: Analyzing trace with hash 505163460, now seen corresponding path program 1 times [2019-12-18 23:04:46,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:04:46,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133509976] [2019-12-18 23:04:46,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:04:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:04:46,951 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 23:04:46,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133509976] [2019-12-18 23:04:46,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:04:46,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:04:46,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320810483] [2019-12-18 23:04:46,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 23:04:46,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:04:46,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 23:04:46,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:04:46,953 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-18 23:04:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:04:46,964 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-18 23:04:46,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 23:04:46,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 23:04:46,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:04:46,965 INFO L225 Difference]: With dead ends: 13 [2019-12-18 23:04:46,965 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 23:04:46,966 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 23:04:46,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 23:04:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 23:04:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 23:04:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 23:04:46,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 23:04:46,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:04:46,967 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 23:04:46,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 23:04:46,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 23:04:46,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 23:04:46,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:04:46 BasicIcfg [2019-12-18 23:04:46,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 23:04:46,974 INFO L168 Benchmark]: Toolchain (without parser) took 3900.47 ms. Allocated memory was 137.9 MB in the beginning and 248.5 MB in the end (delta: 110.6 MB). Free memory was 101.2 MB in the beginning and 167.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. [2019-12-18 23:04:46,976 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 23:04:46,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.86 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 157.3 MB in the end (delta: -56.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-12-18 23:04:46,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.11 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 23:04:46,979 INFO L168 Benchmark]: Boogie Preprocessor took 42.06 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 153.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 23:04:46,979 INFO L168 Benchmark]: RCFGBuilder took 443.37 ms. Allocated memory is still 201.9 MB. Free memory was 153.2 MB in the beginning and 133.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-18 23:04:46,980 INFO L168 Benchmark]: TraceAbstraction took 2582.82 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 132.5 MB in the beginning and 167.4 MB in the end (delta: -34.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-12-18 23:04:46,985 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.86 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 157.3 MB in the end (delta: -56.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 75.11 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.06 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 153.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.37 ms. Allocated memory is still 201.9 MB. Free memory was 153.2 MB in the beginning and 133.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2582.82 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 132.5 MB in the beginning and 167.4 MB in the end (delta: -34.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 240 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 469 CheckedPairsTotal, 44 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 20 SDslu, 38 SDs, 0 SdLazy, 31 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 906 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...