/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:19:34,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:19:34,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:19:34,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:19:34,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:19:34,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:19:34,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:19:34,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:19:34,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:19:34,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:19:34,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:19:34,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:19:34,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:19:34,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:19:34,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:19:34,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:19:34,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:19:34,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:19:34,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:19:34,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:19:34,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:19:34,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:19:34,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:19:34,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:19:34,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:19:34,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:19:34,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:19:34,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:19:34,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:19:34,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:19:34,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:19:34,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:19:34,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:19:34,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:19:34,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:19:34,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:19:34,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:19:34,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:19:34,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:19:34,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:19:34,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:19:34,986 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-MCR.epf [2019-12-28 05:19:35,000 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:19:35,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:19:35,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:19:35,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:19:35,002 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:19:35,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:19:35,002 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:19:35,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:19:35,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:19:35,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:19:35,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:19:35,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:19:35,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:19:35,003 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:19:35,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:19:35,004 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:19:35,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:19:35,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:19:35,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:19:35,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:19:35,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:19:35,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:19:35,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:19:35,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:19:35,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:19:35,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:19:35,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:19:35,006 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:19:35,006 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:19:35,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:19:35,007 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:19:35,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:19:35,314 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:19:35,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:19:35,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:19:35,340 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:19:35,341 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:19:35,342 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2019-12-28 05:19:35,404 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b5830b95/ae52d2f734fe4082b56266e9964671f3/FLAGe03caccb2 [2019-12-28 05:19:35,969 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:19:35,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2019-12-28 05:19:36,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b5830b95/ae52d2f734fe4082b56266e9964671f3/FLAGe03caccb2 [2019-12-28 05:19:36,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b5830b95/ae52d2f734fe4082b56266e9964671f3 [2019-12-28 05:19:36,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:19:36,265 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:19:36,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:19:36,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:19:36,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:19:36,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:19:36" (1/1) ... [2019-12-28 05:19:36,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64745772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:36, skipping insertion in model container [2019-12-28 05:19:36,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:19:36" (1/1) ... [2019-12-28 05:19:36,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:19:36,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:19:36,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:19:36,871 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:19:36,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:19:37,005 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:19:37,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37 WrapperNode [2019-12-28 05:19:37,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:19:37,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:19:37,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:19:37,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:19:37,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:19:37,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:19:37,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:19:37,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:19:37,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (1/1) ... [2019-12-28 05:19:37,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:19:37,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:19:37,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:19:37,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:19:37,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (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 [2019-12-28 05:19:37,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:19:37,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:19:37,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:19:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:19:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:19:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:19:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:19:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:19:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:19:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:19:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:19:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:19:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:19:37,167 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:19:37,545 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:19:37,545 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:19:37,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:19:37 BoogieIcfgContainer [2019-12-28 05:19:37,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:19:37,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:19:37,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:19:37,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:19:37,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:19:36" (1/3) ... [2019-12-28 05:19:37,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58051f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:19:37, skipping insertion in model container [2019-12-28 05:19:37,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:37" (2/3) ... [2019-12-28 05:19:37,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58051f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:19:37, skipping insertion in model container [2019-12-28 05:19:37,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:19:37" (3/3) ... [2019-12-28 05:19:37,556 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2019-12-28 05:19:37,567 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:19:37,568 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:19:37,576 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:19:37,577 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:19:37,605 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,606 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,606 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,606 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,607 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,607 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,608 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,608 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,610 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,610 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,610 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,611 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,615 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,615 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,615 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,616 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,632 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,633 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,633 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,634 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,641 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,642 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,642 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,642 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:37,656 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:19:37,676 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:19:37,676 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:19:37,676 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:19:37,676 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:19:37,677 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:19:37,677 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:19:37,677 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:19:37,677 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:19:37,688 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 52 transitions [2019-12-28 05:19:37,778 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-12-28 05:19:37,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-12-28 05:19:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 05:19:37,812 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:19:37,813 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] [2019-12-28 05:19:37,814 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:19:37,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:19:37,821 INFO L82 PathProgramCache]: Analyzing trace with hash 2035316292, now seen corresponding path program 1 times [2019-12-28 05:19:37,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:19:37,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105580507] [2019-12-28 05:19:37,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:19:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:19:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:19:38,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105580507] [2019-12-28 05:19:38,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:19:38,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:19:38,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [327169822] [2019-12-28 05:19:38,197 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:19:38,207 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:19:38,234 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 05:19:38,235 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:19:38,239 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:19:38,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:19:38,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:19:38,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:19:38,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:19:38,258 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-12-28 05:19:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:19:38,371 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-12-28 05:19:38,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:19:38,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-28 05:19:38,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:19:38,400 INFO L225 Difference]: With dead ends: 1293 [2019-12-28 05:19:38,400 INFO L226 Difference]: Without dead ends: 599 [2019-12-28 05:19:38,402 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 [2019-12-28 05:19:38,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-12-28 05:19:38,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-12-28 05:19:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-12-28 05:19:38,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-12-28 05:19:38,536 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-12-28 05:19:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:19:38,536 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-12-28 05:19:38,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:19:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-12-28 05:19:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-28 05:19:38,540 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:19:38,540 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] [2019-12-28 05:19:38,540 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:19:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:19:38,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1126124902, now seen corresponding path program 1 times [2019-12-28 05:19:38,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:19:38,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716623560] [2019-12-28 05:19:38,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:19:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:19:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:19:38,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716623560] [2019-12-28 05:19:38,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:19:38,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:19:38,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1436354408] [2019-12-28 05:19:38,745 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:19:38,749 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:19:38,753 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 46 transitions. [2019-12-28 05:19:38,754 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:19:38,755 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:19:38,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:19:38,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:19:38,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:19:38,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:19:38,758 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 5 states. [2019-12-28 05:19:38,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:19:38,834 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-12-28 05:19:38,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:19:38,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-28 05:19:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:19:38,840 INFO L225 Difference]: With dead ends: 599 [2019-12-28 05:19:38,841 INFO L226 Difference]: Without dead ends: 536 [2019-12-28 05:19:38,841 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:19:38,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-12-28 05:19:38,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-12-28 05:19:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-12-28 05:19:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-12-28 05:19:38,868 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-12-28 05:19:38,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:19:38,868 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-12-28 05:19:38,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:19:38,869 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-12-28 05:19:38,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:19:38,871 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:19:38,871 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:19:38,871 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:19:38,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:19:38,872 INFO L82 PathProgramCache]: Analyzing trace with hash -821434468, now seen corresponding path program 1 times [2019-12-28 05:19:38,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:19:38,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952058933] [2019-12-28 05:19:38,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:19:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:19:39,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:19:39,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952058933] [2019-12-28 05:19:39,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:19:39,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:19:39,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [183092029] [2019-12-28 05:19:39,015 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:19:39,019 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:19:39,024 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 40 states and 47 transitions. [2019-12-28 05:19:39,024 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:19:39,025 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:19:39,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:19:39,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:19:39,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:19:39,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:19:39,027 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 6 states. [2019-12-28 05:19:39,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:19:39,136 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-12-28 05:19:39,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:19:39,137 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-28 05:19:39,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:19:39,141 INFO L225 Difference]: With dead ends: 401 [2019-12-28 05:19:39,141 INFO L226 Difference]: Without dead ends: 347 [2019-12-28 05:19:39,141 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 [2019-12-28 05:19:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-12-28 05:19:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-12-28 05:19:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-12-28 05:19:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-12-28 05:19:39,155 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-12-28 05:19:39,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:19:39,156 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-12-28 05:19:39,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:19:39,156 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-12-28 05:19:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 05:19:39,160 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:19:39,160 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:19:39,160 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:19:39,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:19:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1999696503, now seen corresponding path program 1 times [2019-12-28 05:19:39,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:19:39,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528679000] [2019-12-28 05:19:39,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:19:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:19:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:19:39,358 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528679000] [2019-12-28 05:19:39,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:19:39,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:19:39,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [156840065] [2019-12-28 05:19:39,359 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:19:39,365 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:19:39,372 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 48 transitions. [2019-12-28 05:19:39,373 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:19:39,373 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:19:39,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:19:39,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:19:39,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:19:39,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:19:39,375 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 6 states. [2019-12-28 05:19:39,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:19:39,496 INFO L93 Difference]: Finished difference Result 293 states and 751 transitions. [2019-12-28 05:19:39,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:19:39,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-28 05:19:39,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:19:39,497 INFO L225 Difference]: With dead ends: 293 [2019-12-28 05:19:39,497 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:19:39,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:19:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:19:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:19:39,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:19:39,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:19:39,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-12-28 05:19:39,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:19:39,500 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:19:39,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:19:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:19:39,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:19:39,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:19:39 BasicIcfg [2019-12-28 05:19:39,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:19:39,513 INFO L168 Benchmark]: Toolchain (without parser) took 3246.56 ms. Allocated memory was 144.2 MB in the beginning and 232.3 MB in the end (delta: 88.1 MB). Free memory was 100.3 MB in the beginning and 85.0 MB in the end (delta: 15.3 MB). Peak memory consumption was 103.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:39,515 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-28 05:19:39,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.95 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.9 MB in the beginning and 156.4 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:39,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.91 ms. Allocated memory is still 201.3 MB. Free memory was 156.4 MB in the beginning and 154.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:39,524 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 ms. Allocated memory is still 201.3 MB. Free memory was 154.1 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:39,525 INFO L168 Benchmark]: RCFGBuilder took 460.83 ms. Allocated memory is still 201.3 MB. Free memory was 152.7 MB in the beginning and 132.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:39,527 INFO L168 Benchmark]: TraceAbstraction took 1960.27 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 131.7 MB in the beginning and 85.0 MB in the end (delta: 46.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:39,540 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 739.95 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.9 MB in the beginning and 156.4 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.91 ms. Allocated memory is still 201.3 MB. Free memory was 156.4 MB in the beginning and 154.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.20 ms. Allocated memory is still 201.3 MB. Free memory was 154.1 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.83 ms. Allocated memory is still 201.3 MB. Free memory was 152.7 MB in the beginning and 132.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1960.27 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 131.7 MB in the beginning and 85.0 MB in the end (delta: 46.7 MB). Peak memory consumption was 77.7 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 4 procedures, 52 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 163 SDtfs, 228 SDslu, 294 SDs, 0 SdLazy, 49 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 9576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...