/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:16:54,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:16:54,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:16:54,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:16:54,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:16:54,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:16:54,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:16:54,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:16:54,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:16:54,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:16:54,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:16:54,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:16:54,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:16:54,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:16:54,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:16:54,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:16:54,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:16:54,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:16:55,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:16:55,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:16:55,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:16:55,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:16:55,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:16:55,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:16:55,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:16:55,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:16:55,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:16:55,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:16:55,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:16:55,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:16:55,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:16:55,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:16:55,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:16:55,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:16:55,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:16:55,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:16:55,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:16:55,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:16:55,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:16:55,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:16:55,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:16:55,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:16:55,034 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:16:55,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:16:55,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:16:55,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:16:55,036 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:16:55,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:16:55,037 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:16:55,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:16:55,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:16:55,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:16:55,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:16:55,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:16:55,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:16:55,038 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:16:55,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:16:55,039 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:16:55,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:16:55,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:16:55,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:16:55,040 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:16:55,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:16:55,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:16:55,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:16:55,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:16:55,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:16:55,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:16:55,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:16:55,041 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:16:55,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:16:55,042 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:16:55,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:16:55,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:16:55,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:16:55,349 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:16:55,349 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:16:55,350 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2019-12-19 05:16:55,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/694855512/1e477eabf7c44f169823f762fd2b4f19/FLAG527628744 [2019-12-19 05:16:55,974 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:16:55,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2019-12-19 05:16:55,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/694855512/1e477eabf7c44f169823f762fd2b4f19/FLAG527628744 [2019-12-19 05:16:56,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/694855512/1e477eabf7c44f169823f762fd2b4f19 [2019-12-19 05:16:56,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:16:56,205 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:16:56,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:16:56,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:16:56,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:16:56,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:56,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4a1e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56, skipping insertion in model container [2019-12-19 05:16:56,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:56,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:16:56,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:16:56,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:16:56,815 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:16:56,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:16:56,949 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:16:56,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56 WrapperNode [2019-12-19 05:16:56,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:16:56,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:16:56,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:16:56,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:16:56,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:56,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:57,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:16:57,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:16:57,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:16:57,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:16:57,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:57,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:57,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:57,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:57,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:57,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:57,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... [2019-12-19 05:16:57,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:16:57,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:16:57,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:16:57,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:16:57,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:16:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:16:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:16:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:16:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:16:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:16:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:16:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:16:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:16:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:16:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:16:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-19 05:16:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-19 05:16:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:16:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:16:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:16:57,114 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:16:57,542 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:16:57,542 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:16:57,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:16:57 BoogieIcfgContainer [2019-12-19 05:16:57,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:16:57,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:16:57,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:16:57,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:16:57,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:16:56" (1/3) ... [2019-12-19 05:16:57,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f197da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:16:57, skipping insertion in model container [2019-12-19 05:16:57,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:16:56" (2/3) ... [2019-12-19 05:16:57,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f197da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:16:57, skipping insertion in model container [2019-12-19 05:16:57,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:16:57" (3/3) ... [2019-12-19 05:16:57,552 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2019-12-19 05:16:57,563 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:16:57,563 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:16:57,571 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:16:57,572 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:16:57,606 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,606 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,607 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,607 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,608 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,608 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,609 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,609 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,610 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,611 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,611 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,611 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,611 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,612 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,612 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,612 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,613 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,613 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,614 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,618 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,618 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,618 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,619 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,625 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,625 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,625 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,625 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,628 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,629 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,629 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,629 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,633 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,634 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,634 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,634 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:16:57,649 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 05:16:57,671 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:16:57,672 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:16:57,672 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:16:57,672 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:16:57,672 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:16:57,672 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:16:57,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:16:57,673 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:16:57,685 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 65 transitions [2019-12-19 05:16:58,021 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-12-19 05:16:58,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-12-19 05:16:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-19 05:16:58,048 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:16:58,049 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:16:58,049 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:16:58,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:16:58,056 INFO L82 PathProgramCache]: Analyzing trace with hash 433648018, now seen corresponding path program 1 times [2019-12-19 05:16:58,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:16:58,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653231503] [2019-12-19 05:16:58,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:16:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:16:58,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:16:58,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653231503] [2019-12-19 05:16:58,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:16:58,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:16:58,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093111719] [2019-12-19 05:16:58,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:16:58,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:16:58,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:16:58,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:16:58,514 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-12-19 05:16:58,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:16:58,695 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-12-19 05:16:58,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:16:58,697 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-19 05:16:58,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:16:58,760 INFO L225 Difference]: With dead ends: 5710 [2019-12-19 05:16:58,760 INFO L226 Difference]: Without dead ends: 2394 [2019-12-19 05:16:58,762 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:16:58,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-12-19 05:16:58,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-12-19 05:16:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-12-19 05:16:59,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-12-19 05:16:59,016 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-12-19 05:16:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:16:59,017 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-12-19 05:16:59,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:16:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-12-19 05:16:59,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-19 05:16:59,025 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:16:59,025 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:16:59,026 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:16:59,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:16:59,026 INFO L82 PathProgramCache]: Analyzing trace with hash -895431090, now seen corresponding path program 1 times [2019-12-19 05:16:59,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:16:59,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79340985] [2019-12-19 05:16:59,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:16:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:16:59,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:16:59,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79340985] [2019-12-19 05:16:59,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:16:59,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:16:59,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178442331] [2019-12-19 05:16:59,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:16:59,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:16:59,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:16:59,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:16:59,292 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-12-19 05:16:59,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:16:59,398 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-12-19 05:16:59,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:16:59,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-12-19 05:16:59,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:16:59,419 INFO L225 Difference]: With dead ends: 2565 [2019-12-19 05:16:59,419 INFO L226 Difference]: Without dead ends: 2310 [2019-12-19 05:16:59,420 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:16:59,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-12-19 05:16:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-12-19 05:16:59,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-12-19 05:16:59,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-12-19 05:16:59,506 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-12-19 05:16:59,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:16:59,506 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-12-19 05:16:59,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:16:59,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-12-19 05:16:59,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 05:16:59,512 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:16:59,512 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:16:59,512 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:16:59,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:16:59,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1455477097, now seen corresponding path program 1 times [2019-12-19 05:16:59,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:16:59,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629639798] [2019-12-19 05:16:59,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:16:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:16:59,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:16:59,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629639798] [2019-12-19 05:16:59,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:16:59,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:16:59,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892410393] [2019-12-19 05:16:59,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:16:59,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:16:59,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:16:59,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:16:59,633 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-12-19 05:16:59,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:16:59,742 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-12-19 05:16:59,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:16:59,743 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-19 05:16:59,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:16:59,759 INFO L225 Difference]: With dead ends: 2175 [2019-12-19 05:16:59,759 INFO L226 Difference]: Without dead ends: 1932 [2019-12-19 05:16:59,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:16:59,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-12-19 05:16:59,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-12-19 05:16:59,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-12-19 05:16:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-12-19 05:16:59,829 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-12-19 05:16:59,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:16:59,829 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-12-19 05:16:59,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:16:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-12-19 05:16:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 05:16:59,834 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:16:59,834 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:16:59,834 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:16:59,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:16:59,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1169485641, now seen corresponding path program 1 times [2019-12-19 05:16:59,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:16:59,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452051622] [2019-12-19 05:16:59,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:16:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:00,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:00,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452051622] [2019-12-19 05:17:00,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:00,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:00,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806209196] [2019-12-19 05:17:00,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:00,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:00,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:00,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:00,078 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-12-19 05:17:00,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:00,213 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-12-19 05:17:00,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:17:00,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-19 05:17:00,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:00,224 INFO L225 Difference]: With dead ends: 1365 [2019-12-19 05:17:00,224 INFO L226 Difference]: Without dead ends: 1176 [2019-12-19 05:17:00,224 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:17:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-12-19 05:17:00,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-12-19 05:17:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-12-19 05:17:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-12-19 05:17:00,261 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-12-19 05:17:00,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:00,262 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-12-19 05:17:00,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:00,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-12-19 05:17:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:17:00,265 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:00,266 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:00,266 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:00,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:00,266 INFO L82 PathProgramCache]: Analyzing trace with hash -985222538, now seen corresponding path program 1 times [2019-12-19 05:17:00,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:00,267 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381980824] [2019-12-19 05:17:00,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:00,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381980824] [2019-12-19 05:17:00,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:00,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:17:00,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977371678] [2019-12-19 05:17:00,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:17:00,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:00,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:17:00,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:17:00,474 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-12-19 05:17:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:00,638 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-12-19 05:17:00,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:00,639 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-12-19 05:17:00,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:00,646 INFO L225 Difference]: With dead ends: 1725 [2019-12-19 05:17:00,647 INFO L226 Difference]: Without dead ends: 876 [2019-12-19 05:17:00,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:17:00,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-12-19 05:17:00,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-12-19 05:17:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-12-19 05:17:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-12-19 05:17:00,688 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-12-19 05:17:00,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:00,689 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-12-19 05:17:00,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:17:00,689 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-12-19 05:17:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:17:00,691 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:00,691 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:00,691 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:00,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:00,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1459721732, now seen corresponding path program 2 times [2019-12-19 05:17:00,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:00,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397745154] [2019-12-19 05:17:00,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:00,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397745154] [2019-12-19 05:17:00,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:00,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:00,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733127288] [2019-12-19 05:17:00,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:00,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:00,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:00,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:00,843 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-12-19 05:17:00,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:00,998 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-12-19 05:17:00,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:00,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-19 05:17:00,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:01,004 INFO L225 Difference]: With dead ends: 1389 [2019-12-19 05:17:01,005 INFO L226 Difference]: Without dead ends: 768 [2019-12-19 05:17:01,005 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:17:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-12-19 05:17:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-12-19 05:17:01,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-12-19 05:17:01,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-12-19 05:17:01,027 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-12-19 05:17:01,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:01,027 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-12-19 05:17:01,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:01,028 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-12-19 05:17:01,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:17:01,030 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:01,030 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:01,030 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:01,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:01,031 INFO L82 PathProgramCache]: Analyzing trace with hash -353081860, now seen corresponding path program 3 times [2019-12-19 05:17:01,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:01,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981716353] [2019-12-19 05:17:01,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:01,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981716353] [2019-12-19 05:17:01,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:01,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:01,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428515852] [2019-12-19 05:17:01,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:01,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:01,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:01,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:01,137 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-12-19 05:17:01,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:01,266 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-12-19 05:17:01,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:01,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-19 05:17:01,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:01,273 INFO L225 Difference]: With dead ends: 1254 [2019-12-19 05:17:01,273 INFO L226 Difference]: Without dead ends: 717 [2019-12-19 05:17:01,274 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:17:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-12-19 05:17:01,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-12-19 05:17:01,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-12-19 05:17:01,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-12-19 05:17:01,303 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-12-19 05:17:01,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:01,303 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-12-19 05:17:01,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:01,304 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-12-19 05:17:01,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:17:01,306 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:01,306 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:01,306 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:01,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:01,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1457383704, now seen corresponding path program 4 times [2019-12-19 05:17:01,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:01,308 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961732428] [2019-12-19 05:17:01,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:01,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961732428] [2019-12-19 05:17:01,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:01,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:01,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071928313] [2019-12-19 05:17:01,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:01,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:01,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:01,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:01,490 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-12-19 05:17:01,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:01,629 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-12-19 05:17:01,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:17:01,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-19 05:17:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:01,630 INFO L225 Difference]: With dead ends: 555 [2019-12-19 05:17:01,630 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:17:01,631 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:17:01,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:17:01,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:17:01,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:17:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:17:01,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-12-19 05:17:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:01,632 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:17:01,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:01,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:17:01,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:17:01,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:17:01 BasicIcfg [2019-12-19 05:17:01,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:17:01,648 INFO L168 Benchmark]: Toolchain (without parser) took 5438.40 ms. Allocated memory was 145.2 MB in the beginning and 308.8 MB in the end (delta: 163.6 MB). Free memory was 100.0 MB in the beginning and 159.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:01,649 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:17:01,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.02 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.8 MB in the beginning and 158.6 MB in the end (delta: -58.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:01,651 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:01,654 INFO L168 Benchmark]: Boogie Preprocessor took 27.90 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:01,657 INFO L168 Benchmark]: RCFGBuilder took 510.23 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 132.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:01,658 INFO L168 Benchmark]: TraceAbstraction took 4096.26 ms. Allocated memory was 202.9 MB in the beginning and 308.8 MB in the end (delta: 105.9 MB). Free memory was 131.7 MB in the beginning and 159.1 MB in the end (delta: -27.4 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:01,669 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.02 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.8 MB in the beginning and 158.6 MB in the end (delta: -58.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 202.9 MB. Free memory was 158.6 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.90 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 154.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 510.23 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 132.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4096.26 ms. Allocated memory was 202.9 MB in the beginning and 308.8 MB in the end (delta: 105.9 MB). Free memory was 131.7 MB in the beginning and 159.1 MB in the end (delta: -27.4 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 697 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...