/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/safe032_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:26:37,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:26:37,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:26:37,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:26:37,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:26:37,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:26:37,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:26:37,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:26:37,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:26:37,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:26:37,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:26:37,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:26:37,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:26:37,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:26:37,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:26:37,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:26:37,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:26:37,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:26:37,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:26:37,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:26:37,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:26:37,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:26:37,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:26:37,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:26:37,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:26:37,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:26:37,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:26:37,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:26:37,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:26:37,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:26:37,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:26:37,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:26:37,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:26:37,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:26:37,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:26:37,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:26:37,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:26:38,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:26:38,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:26:38,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:26:38,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:26:38,003 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 05:26:38,027 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:26:38,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:26:38,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:26:38,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:26:38,029 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:26:38,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:26:38,030 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:26:38,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:26:38,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:26:38,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:26:38,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:26:38,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:26:38,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:26:38,031 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:26:38,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:26:38,031 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:26:38,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:26:38,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:26:38,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:26:38,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:26:38,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:26:38,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:26:38,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:26:38,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:26:38,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:26:38,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:26:38,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:26:38,034 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:26:38,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:26:38,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:26:38,034 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:26:38,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:26:38,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:26:38,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:26:38,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:26:38,339 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:26:38,339 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:26:38,340 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2019-12-28 05:26:38,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23f803127/ca3b1c73077b4d25a5c579aac1d8ba7a/FLAG79d251dd5 [2019-12-28 05:26:38,994 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:26:38,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2019-12-28 05:26:39,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23f803127/ca3b1c73077b4d25a5c579aac1d8ba7a/FLAG79d251dd5 [2019-12-28 05:26:39,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23f803127/ca3b1c73077b4d25a5c579aac1d8ba7a [2019-12-28 05:26:39,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:26:39,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:26:39,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:26:39,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:26:39,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:26:39,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:39,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81a7e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39, skipping insertion in model container [2019-12-28 05:26:39,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:39,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:26:39,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:26:39,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:26:39,811 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:26:39,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:26:39,931 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:26:39,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39 WrapperNode [2019-12-28 05:26:39,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:26:39,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:26:39,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:26:39,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:26:39,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:39,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:39,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:26:39,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:26:39,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:26:39,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:26:39,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:39,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:39,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:39,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:39,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:40,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:40,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (1/1) ... [2019-12-28 05:26:40,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:26:40,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:26:40,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:26:40,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:26:40,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (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 05:26:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:26:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:26:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:26:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:26:40,081 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:26:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:26:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:26:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:26:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:26:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:26:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:26:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:26:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:26:40,085 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 05:26:40,457 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:26:40,458 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:26:40,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:26:40 BoogieIcfgContainer [2019-12-28 05:26:40,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:26:40,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:26:40,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:26:40,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:26:40,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:26:39" (1/3) ... [2019-12-28 05:26:40,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754c5c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:26:40, skipping insertion in model container [2019-12-28 05:26:40,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:26:39" (2/3) ... [2019-12-28 05:26:40,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754c5c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:26:40, skipping insertion in model container [2019-12-28 05:26:40,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:26:40" (3/3) ... [2019-12-28 05:26:40,466 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i [2019-12-28 05:26:40,476 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:26:40,476 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:26:40,484 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:26:40,485 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:26:40,513 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,513 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,513 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,514 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,514 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,514 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,515 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,515 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,515 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,516 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,516 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,516 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,516 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,517 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,517 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,517 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,517 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,518 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,521 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,522 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,522 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,522 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,527 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,527 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,527 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,527 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,532 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,532 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,532 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,533 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:26:40,552 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:26:40,569 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:26:40,569 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:26:40,569 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:26:40,569 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:26:40,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:26:40,570 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:26:40,570 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:26:40,570 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:26:40,581 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-28 05:26:40,678 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-28 05:26:40,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-28 05:26:40,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-28 05:26:40,710 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:26:40,711 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 05:26:40,712 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:26:40,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:26:40,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2075235580, now seen corresponding path program 1 times [2019-12-28 05:26:40,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:26:40,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632389551] [2019-12-28 05:26:40,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:26:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:26:41,155 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 05:26:41,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632389551] [2019-12-28 05:26:41,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:26:41,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:26:41,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1432320468] [2019-12-28 05:26:41,161 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:26:41,171 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:26:41,199 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 31 states and 30 transitions. [2019-12-28 05:26:41,199 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:26:41,205 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:26:41,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:26:41,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:26:41,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:26:41,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:26:41,245 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-28 05:26:41,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:26:41,334 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-28 05:26:41,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:26:41,336 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-28 05:26:41,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:26:41,359 INFO L225 Difference]: With dead ends: 1294 [2019-12-28 05:26:41,359 INFO L226 Difference]: Without dead ends: 600 [2019-12-28 05:26:41,361 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 05:26:41,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-28 05:26:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-28 05:26:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-28 05:26:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-28 05:26:41,495 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-28 05:26:41,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:26:41,496 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-28 05:26:41,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:26:41,497 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-28 05:26:41,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:26:41,502 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:26:41,502 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 05:26:41,502 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:26:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:26:41,503 INFO L82 PathProgramCache]: Analyzing trace with hash 244837820, now seen corresponding path program 1 times [2019-12-28 05:26:41,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:26:41,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468009231] [2019-12-28 05:26:41,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:26:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:26:41,680 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 05:26:41,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468009231] [2019-12-28 05:26:41,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:26:41,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:26:41,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [733725324] [2019-12-28 05:26:41,681 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:26:41,684 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:26:41,688 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 05:26:41,688 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:26:41,689 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:26:41,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:26:41,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:26:41,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:26:41,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:26:41,692 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-28 05:26:41,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:26:41,791 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-28 05:26:41,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:26:41,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-28 05:26:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:26:41,800 INFO L225 Difference]: With dead ends: 600 [2019-12-28 05:26:41,800 INFO L226 Difference]: Without dead ends: 537 [2019-12-28 05:26:41,801 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 05:26:41,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-28 05:26:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-28 05:26:41,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-28 05:26:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-28 05:26:41,843 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-28 05:26:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:26:41,843 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-28 05:26:41,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:26:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-28 05:26:41,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 05:26:41,845 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:26:41,845 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 05:26:41,846 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:26:41,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:26:41,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1765121986, now seen corresponding path program 1 times [2019-12-28 05:26:41,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:26:41,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301003782] [2019-12-28 05:26:41,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:26:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:26:41,994 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 05:26:41,997 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301003782] [2019-12-28 05:26:41,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:26:41,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:26:41,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [999616732] [2019-12-28 05:26:41,999 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:26:42,002 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:26:42,006 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 33 states and 32 transitions. [2019-12-28 05:26:42,006 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:26:42,007 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:26:42,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:26:42,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:26:42,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:26:42,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:26:42,008 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-28 05:26:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:26:42,098 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-28 05:26:42,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:26:42,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-28 05:26:42,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:26:42,101 INFO L225 Difference]: With dead ends: 402 [2019-12-28 05:26:42,102 INFO L226 Difference]: Without dead ends: 348 [2019-12-28 05:26:42,102 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 05:26:42,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-28 05:26:42,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-28 05:26:42,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-28 05:26:42,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-28 05:26:42,114 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-28 05:26:42,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:26:42,115 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-28 05:26:42,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:26:42,115 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-28 05:26:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 05:26:42,116 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:26:42,116 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:26:42,117 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:26:42,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:26:42,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1712212711, now seen corresponding path program 1 times [2019-12-28 05:26:42,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:26:42,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676183305] [2019-12-28 05:26:42,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:26:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:26:42,279 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 05:26:42,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676183305] [2019-12-28 05:26:42,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:26:42,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:26:42,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [623579229] [2019-12-28 05:26:42,280 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:26:42,285 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:26:42,292 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 34 states and 33 transitions. [2019-12-28 05:26:42,292 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:26:42,293 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:26:42,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:26:42,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:26:42,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:26:42,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:26:42,294 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-12-28 05:26:42,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:26:42,459 INFO L93 Difference]: Finished difference Result 294 states and 752 transitions. [2019-12-28 05:26:42,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:26:42,460 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 05:26:42,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:26:42,460 INFO L225 Difference]: With dead ends: 294 [2019-12-28 05:26:42,460 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:26:42,461 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 05:26:42,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:26:42,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:26:42,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:26:42,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:26:42,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-28 05:26:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:26:42,462 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:26:42,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:26:42,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:26:42,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:26:42,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:26:42 BasicIcfg [2019-12-28 05:26:42,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:26:42,471 INFO L168 Benchmark]: Toolchain (without parser) took 3218.99 ms. Allocated memory was 146.3 MB in the beginning and 248.5 MB in the end (delta: 102.2 MB). Free memory was 102.8 MB in the beginning and 210.0 MB in the end (delta: -107.1 MB). Peak memory consumption was 114.8 MB. Max. memory is 7.1 GB. [2019-12-28 05:26:42,472 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 05:26:42,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.73 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 159.0 MB in the end (delta: -56.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:26:42,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.75 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-28 05:26:42,475 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 ms. Allocated memory is still 203.4 MB. Free memory was 156.2 MB in the beginning and 155.2 MB in the end (delta: 946.3 kB). Peak memory consumption was 946.3 kB. Max. memory is 7.1 GB. [2019-12-28 05:26:42,475 INFO L168 Benchmark]: RCFGBuilder took 444.77 ms. Allocated memory is still 203.4 MB. Free memory was 155.2 MB in the beginning and 134.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-28 05:26:42,476 INFO L168 Benchmark]: TraceAbstraction took 2008.57 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 133.8 MB in the beginning and 210.0 MB in the end (delta: -76.1 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:26:42,480 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 679.73 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 159.0 MB in the end (delta: -56.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.75 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.41 ms. Allocated memory is still 203.4 MB. Free memory was 156.2 MB in the beginning and 155.2 MB in the end (delta: 946.3 kB). Peak memory consumption was 946.3 kB. Max. memory is 7.1 GB. * RCFGBuilder took 444.77 ms. Allocated memory is still 203.4 MB. Free memory was 155.2 MB in the beginning and 134.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2008.57 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 133.8 MB in the beginning and 210.0 MB in the end (delta: -76.1 MB). Peak memory consumption was 88.7 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 166 SDtfs, 245 SDslu, 316 SDs, 0 SdLazy, 55 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, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 10458 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...