/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:08:01,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:08:02,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:08:02,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:08:02,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:08:02,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:08:02,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:08:02,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:08:02,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:08:02,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:08:02,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:08:02,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:08:02,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:08:02,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:08:02,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:08:02,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:08:02,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:08:02,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:08:02,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:08:02,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:08:02,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:08:02,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:08:02,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:08:02,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:08:02,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 22:08:02,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 22:08:02,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 22:08:02,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 22:08:02,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 22:08:02,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 22:08:02,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:08:02,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:08:02,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:08:02,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:08:02,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:08:02,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:08:02,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:08:02,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:08:02,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:08:02,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:08:02,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:08:02,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-MCR.epf [2019-12-27 22:08:02,064 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:08:02,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:08:02,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:08:02,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:08:02,066 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:08:02,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:08:02,066 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:08:02,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:08:02,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:08:02,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:08:02,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:08:02,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:08:02,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:08:02,068 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:08:02,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:08:02,068 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:08:02,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:08:02,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:08:02,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:08:02,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:08:02,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:08:02,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:08:02,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:08:02,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:08:02,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:08:02,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:08:02,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:08:02,071 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:08:02,071 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:08:02,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:08:02,071 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:08:02,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:08:02,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:08:02,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:08:02,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:08:02,446 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:08:02,448 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:08:02,448 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2019-12-27 22:08:02,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3dd5f055/257920223b094fd1abc98b1bc14d2715/FLAG009b363a1 [2019-12-27 22:08:03,016 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:08:03,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2019-12-27 22:08:03,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3dd5f055/257920223b094fd1abc98b1bc14d2715/FLAG009b363a1 [2019-12-27 22:08:03,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3dd5f055/257920223b094fd1abc98b1bc14d2715 [2019-12-27 22:08:03,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:08:03,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:08:03,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:08:03,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:08:03,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:08:03,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:08:03" (1/1) ... [2019-12-27 22:08:03,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8b6dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:03, skipping insertion in model container [2019-12-27 22:08:03,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:08:03" (1/1) ... [2019-12-27 22:08:03,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:08:03,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:08:03,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:08:03,964 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:08:04,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:08:04,098 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:08:04,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04 WrapperNode [2019-12-27 22:08:04,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:08:04,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:08:04,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:08:04,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:08:04,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:08:04,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:08:04,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:08:04,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:08:04,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (1/1) ... [2019-12-27 22:08:04,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:08:04,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:08:04,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:08:04,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:08:04,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (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 [2019-12-27 22:08:04,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:08:04,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:08:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:08:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:08:04,319 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:08:04,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:08:04,320 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:08:04,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:08:04,322 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:08:04,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:08:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:08:04,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:08:04,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:08:04,325 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 22:08:04,716 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:08:04,716 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:08:04,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:08:04 BoogieIcfgContainer [2019-12-27 22:08:04,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:08:04,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:08:04,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:08:04,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:08:04,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:08:03" (1/3) ... [2019-12-27 22:08:04,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174abe0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:08:04, skipping insertion in model container [2019-12-27 22:08:04,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:08:04" (2/3) ... [2019-12-27 22:08:04,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174abe0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:08:04, skipping insertion in model container [2019-12-27 22:08:04,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:08:04" (3/3) ... [2019-12-27 22:08:04,727 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2019-12-27 22:08:04,738 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:08:04,738 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:08:04,746 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:08:04,748 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:08:04,782 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,782 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,782 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,782 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,783 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,783 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,784 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,784 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,784 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,785 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,785 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,785 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,785 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,786 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,786 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,786 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,786 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,787 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,791 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,791 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,791 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,792 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,799 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,799 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,800 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,800 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,805 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,805 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,805 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,806 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:08:04,829 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:08:04,848 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:08:04,848 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:08:04,848 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:08:04,849 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:08:04,849 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:08:04,849 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:08:04,849 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:08:04,849 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:08:04,863 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 22:08:04,866 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:08:04,910 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:08:04,911 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:08:04,917 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:08:04,920 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:08:04,938 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:08:04,939 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:08:04,940 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:08:04,941 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:08:04,943 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:08:06,431 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 22:08:06,496 INFO L206 etLargeBlockEncoding]: Checked pairs total: 501 [2019-12-27 22:08:06,496 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 22:08:06,500 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 22:08:06,511 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 22:08:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 22:08:06,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:08:06,520 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:08:06,521 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:08:06,521 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:08:06,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:08:06,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1273726136, now seen corresponding path program 1 times [2019-12-27 22:08:06,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:08:06,539 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485156542] [2019-12-27 22:08:06,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:08:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:08:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:08:06,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485156542] [2019-12-27 22:08:06,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:08:06,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:08:06,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1110984785] [2019-12-27 22:08:06,824 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:08:06,832 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:08:06,848 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:08:06,849 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:08:06,855 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:08:06,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:08:06,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:08:06,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:08:06,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:08:06,875 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 22:08:06,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:08:06,908 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 22:08:06,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:08:06,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:08:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:08:06,938 INFO L225 Difference]: With dead ends: 50 [2019-12-27 22:08:06,938 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:08:06,940 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:08:06,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:08:06,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:08:06,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:08:06,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:08:06,985 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:08:06,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:08:06,986 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:08:06,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:08:06,987 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:08:06,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:08:06,988 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:08:06,988 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:08:06,988 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:08:06,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:08:06,989 INFO L82 PathProgramCache]: Analyzing trace with hash 830846190, now seen corresponding path program 1 times [2019-12-27 22:08:06,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:08:06,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352085182] [2019-12-27 22:08:06,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:08:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:08:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:08:07,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352085182] [2019-12-27 22:08:07,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:08:07,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:08:07,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [315029969] [2019-12-27 22:08:07,047 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:08:07,049 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:08:07,053 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 22:08:07,054 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:08:07,057 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:08:07,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:08:07,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:08:07,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:08:07,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:08:07,060 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 22:08:07,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:08:07,070 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 22:08:07,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:08:07,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:08:07,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:08:07,073 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:08:07,073 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 22:08:07,074 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:08:07,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 22:08:07,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 22:08:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 22:08:07,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 22:08:07,080 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 22:08:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:08:07,081 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 22:08:07,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:08:07,081 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 22:08:07,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:08:07,082 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:08:07,082 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:08:07,083 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:08:07,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:08:07,083 INFO L82 PathProgramCache]: Analyzing trace with hash 22499836, now seen corresponding path program 1 times [2019-12-27 22:08:07,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:08:07,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996563749] [2019-12-27 22:08:07,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:08:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:08:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:08:07,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996563749] [2019-12-27 22:08:07,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:08:07,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:08:07,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1980666875] [2019-12-27 22:08:07,205 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:08:07,206 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:08:07,209 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 22:08:07,209 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:08:07,210 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:08:07,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:08:07,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:08:07,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:08:07,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:08:07,212 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 4 states. [2019-12-27 22:08:07,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:08:07,237 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 22:08:07,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:08:07,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 22:08:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:08:07,238 INFO L225 Difference]: With dead ends: 35 [2019-12-27 22:08:07,238 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 22:08:07,239 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:08:07,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 22:08:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 22:08:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 22:08:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 22:08:07,243 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 22:08:07,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:08:07,244 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 22:08:07,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:08:07,244 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 22:08:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:08:07,247 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:08:07,247 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:08:07,247 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:08:07,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:08:07,248 INFO L82 PathProgramCache]: Analyzing trace with hash 527638481, now seen corresponding path program 1 times [2019-12-27 22:08:07,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:08:07,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037348561] [2019-12-27 22:08:07,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:08:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:08:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:08:07,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037348561] [2019-12-27 22:08:07,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:08:07,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:08:07,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [342888955] [2019-12-27 22:08:07,347 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:08:07,350 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:08:07,356 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 22:08:07,357 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:08:07,358 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:08:07,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:08:07,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:08:07,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:08:07,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:08:07,359 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 22:08:07,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:08:07,385 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-27 22:08:07,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:08:07,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:08:07,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:08:07,387 INFO L225 Difference]: With dead ends: 33 [2019-12-27 22:08:07,387 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 22:08:07,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:08:07,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 22:08:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 22:08:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 22:08:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2019-12-27 22:08:07,392 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 30 transitions. Word has length 11 [2019-12-27 22:08:07,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:08:07,393 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-27 22:08:07,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:08:07,393 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2019-12-27 22:08:07,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:08:07,395 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:08:07,395 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:08:07,395 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:08:07,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:08:07,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1391310681, now seen corresponding path program 2 times [2019-12-27 22:08:07,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:08:07,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713469955] [2019-12-27 22:08:07,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:08:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:08:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:08:07,452 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713469955] [2019-12-27 22:08:07,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:08:07,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:08:07,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [118899935] [2019-12-27 22:08:07,455 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:08:07,457 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:08:07,459 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:08:07,459 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:08:07,460 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:08:07,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:08:07,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:08:07,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:08:07,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:08:07,461 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. Second operand 3 states. [2019-12-27 22:08:07,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:08:07,468 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2019-12-27 22:08:07,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:08:07,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 22:08:07,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:08:07,469 INFO L225 Difference]: With dead ends: 20 [2019-12-27 22:08:07,469 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:08:07,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:08:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:08:07,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:08:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:08:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:08:07,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:08:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:08:07,471 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:08:07,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:08:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:08:07,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:08:07,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:08:07 BasicIcfg [2019-12-27 22:08:07,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:08:07,477 INFO L168 Benchmark]: Toolchain (without parser) took 4108.07 ms. Allocated memory was 138.9 MB in the beginning and 248.0 MB in the end (delta: 109.1 MB). Free memory was 101.9 MB in the beginning and 155.1 MB in the end (delta: -53.2 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2019-12-27 22:08:07,478 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 22:08:07,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.06 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 101.7 MB in the beginning and 157.9 MB in the end (delta: -56.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-27 22:08:07,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.87 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:08:07,481 INFO L168 Benchmark]: Boogie Preprocessor took 60.12 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:08:07,482 INFO L168 Benchmark]: RCFGBuilder took 473.56 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 133.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:08:07,483 INFO L168 Benchmark]: TraceAbstraction took 2756.48 ms. Allocated memory was 200.8 MB in the beginning and 248.0 MB in the end (delta: 47.2 MB). Free memory was 133.4 MB in the beginning and 155.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:08:07,487 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.06 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 101.7 MB in the beginning and 157.9 MB in the end (delta: -56.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 83.87 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.12 ms. Allocated memory is still 200.8 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 473.56 ms. Allocated memory is still 200.8 MB. Free memory was 153.9 MB in the beginning and 133.4 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2756.48 ms. Allocated memory was 200.8 MB in the beginning and 248.0 MB in the end (delta: 47.2 MB). Free memory was 133.4 MB in the beginning and 155.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 501 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 23 SDslu, 30 SDs, 0 SdLazy, 23 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1002 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...