/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:18:22,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:18:22,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:18:22,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:18:22,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:18:22,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:18:22,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:18:22,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:18:22,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:18:22,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:18:22,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:18:22,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:18:22,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:18:22,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:18:23,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:18:23,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:18:23,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:18:23,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:18:23,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:18:23,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:18:23,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:18:23,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:18:23,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:18:23,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:18:23,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:18:23,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:18:23,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:18:23,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:18:23,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:18:23,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:18:23,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:18:23,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:18:23,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:18:23,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:18:23,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:18:23,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:18:23,031 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-SemanticLbe-MCR.epf [2019-12-27 18:18:23,045 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:18:23,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:18:23,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:18:23,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:18:23,047 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:18:23,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:18:23,047 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:18:23,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:18:23,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:18:23,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:18:23,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:18:23,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:18:23,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:18:23,049 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:18:23,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:18:23,049 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:18:23,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:18:23,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:18:23,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:18:23,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:18:23,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:18:23,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:18:23,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:18:23,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:18:23,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:18:23,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:18:23,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:18:23,051 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:18:23,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:18:23,052 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:18:23,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:18:23,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:18:23,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:18:23,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:18:23,340 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:18:23,340 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:18:23,342 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2019-12-27 18:18:23,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861a390b6/3aa52a122dae42e8847662c353b2fc13/FLAGc7cdb206a [2019-12-27 18:18:23,928 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:18:23,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2019-12-27 18:18:23,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861a390b6/3aa52a122dae42e8847662c353b2fc13/FLAGc7cdb206a [2019-12-27 18:18:24,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861a390b6/3aa52a122dae42e8847662c353b2fc13 [2019-12-27 18:18:24,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:18:24,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:18:24,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:18:24,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:18:24,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:18:24,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:24,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d35bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24, skipping insertion in model container [2019-12-27 18:18:24,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:24,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:18:24,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:18:24,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:18:24,790 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:18:24,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:18:24,928 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:18:24,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24 WrapperNode [2019-12-27 18:18:24,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:18:24,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:18:24,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:18:24,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:18:24,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:24,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:25,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:18:25,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:18:25,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:18:25,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:18:25,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:25,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:25,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:25,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:25,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:25,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:25,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (1/1) ... [2019-12-27 18:18:25,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:18:25,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:18:25,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:18:25,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:18:25,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (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 18:18:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:18:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:18:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:18:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:18:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:18:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:18:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:18:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:18:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:18:25,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:18:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:18:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:18:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:18:25,131 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 18:18:25,477 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:18:25,478 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:18:25,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:18:25 BoogieIcfgContainer [2019-12-27 18:18:25,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:18:25,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:18:25,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:18:25,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:18:25,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:18:24" (1/3) ... [2019-12-27 18:18:25,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff1bc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:18:25, skipping insertion in model container [2019-12-27 18:18:25,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:18:24" (2/3) ... [2019-12-27 18:18:25,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff1bc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:18:25, skipping insertion in model container [2019-12-27 18:18:25,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:18:25" (3/3) ... [2019-12-27 18:18:25,488 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2019-12-27 18:18:25,496 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:18:25,496 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:18:25,503 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:18:25,504 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:18:25,530 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,530 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,531 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,531 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,532 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,532 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,532 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,533 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,533 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,533 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,533 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,534 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,534 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,534 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,535 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,535 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,535 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,535 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,539 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,540 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,540 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,540 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,544 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,544 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,544 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,545 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,547 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,547 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,548 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,548 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:18:25,561 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:18:25,581 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:18:25,581 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:18:25,581 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:18:25,581 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:18:25,582 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:18:25,582 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:18:25,582 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:18:25,582 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:18:25,596 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 18:18:25,598 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:18:25,644 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:18:25,644 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:18:25,652 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:18:25,656 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:18:25,679 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:18:25,679 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:18:25,684 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:18:25,687 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:18:25,690 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:18:27,107 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2019-12-27 18:18:27,428 INFO L206 etLargeBlockEncoding]: Checked pairs total: 504 [2019-12-27 18:18:27,429 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 18:18:27,433 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:18:27,444 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:18:27,446 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:18:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:18:27,453 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:27,454 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:27,455 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:27,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:27,461 INFO L82 PathProgramCache]: Analyzing trace with hash -411766657, now seen corresponding path program 1 times [2019-12-27 18:18:27,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:27,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778849049] [2019-12-27 18:18:27,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:27,699 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 18:18:27,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778849049] [2019-12-27 18:18:27,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:27,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:18:27,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [354141897] [2019-12-27 18:18:27,708 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:27,717 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:27,733 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:18:27,733 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:27,737 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:27,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:18:27,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:27,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:18:27,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:27,756 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:18:27,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:27,784 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 18:18:27,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:18:27,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:18:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:27,800 INFO L225 Difference]: With dead ends: 44 [2019-12-27 18:18:27,800 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:18:27,802 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 18:18:27,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:18:27,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:18:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:18:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 18:18:27,844 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 18:18:27,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:27,845 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 18:18:27,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:18:27,845 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 18:18:27,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:18:27,846 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:27,846 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:27,847 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:27,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:27,847 INFO L82 PathProgramCache]: Analyzing trace with hash -939565689, now seen corresponding path program 1 times [2019-12-27 18:18:27,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:27,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943758444] [2019-12-27 18:18:27,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:27,954 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 18:18:27,955 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943758444] [2019-12-27 18:18:27,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:27,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:18:27,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [479454099] [2019-12-27 18:18:27,957 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:27,958 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:27,962 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:18:27,962 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:27,964 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:27,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:18:27,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:27,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:18:27,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:27,966 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 18:18:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:27,977 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-27 18:18:27,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:18:27,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:18:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:27,979 INFO L225 Difference]: With dead ends: 33 [2019-12-27 18:18:27,979 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 18:18:27,980 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 18:18:27,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 18:18:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 18:18:27,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 18:18:27,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-27 18:18:27,986 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-27 18:18:27,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:27,987 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-27 18:18:27,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:18:27,987 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-27 18:18:27,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:18:27,988 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:27,988 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:27,989 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:27,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:27,989 INFO L82 PathProgramCache]: Analyzing trace with hash 934712652, now seen corresponding path program 1 times [2019-12-27 18:18:27,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:27,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296230673] [2019-12-27 18:18:27,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:28,105 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 18:18:28,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296230673] [2019-12-27 18:18:28,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:28,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:18:28,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1893876645] [2019-12-27 18:18:28,106 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:28,108 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:28,113 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 22 transitions. [2019-12-27 18:18:28,113 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:28,114 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:28,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:18:28,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:28,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:18:28,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:28,115 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 3 states. [2019-12-27 18:18:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:28,121 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 18:18:28,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:18:28,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 18:18:28,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:28,125 INFO L225 Difference]: With dead ends: 32 [2019-12-27 18:18:28,125 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 18:18:28,126 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 18:18:28,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 18:18:28,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 18:18:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 18:18:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 18:18:28,130 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 10 [2019-12-27 18:18:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:28,131 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 18:18:28,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:18:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 18:18:28,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:18:28,132 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:28,132 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:28,132 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:28,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:28,133 INFO L82 PathProgramCache]: Analyzing trace with hash -679898138, now seen corresponding path program 1 times [2019-12-27 18:18:28,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:28,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403628446] [2019-12-27 18:18:28,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:28,181 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 18:18:28,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403628446] [2019-12-27 18:18:28,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:28,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:18:28,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1448380763] [2019-12-27 18:18:28,183 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:28,184 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:28,186 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:18:28,186 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:28,186 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:28,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:18:28,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:28,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:18:28,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:18:28,188 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-27 18:18:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:28,201 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 18:18:28,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:18:28,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 18:18:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:28,203 INFO L225 Difference]: With dead ends: 35 [2019-12-27 18:18:28,203 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 18:18:28,203 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 18:18:28,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 18:18:28,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 18:18:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 18:18:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 18:18:28,208 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 18:18:28,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:28,209 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 18:18:28,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:18:28,209 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 18:18:28,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:18:28,210 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:28,211 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:28,211 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:28,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:28,213 INFO L82 PathProgramCache]: Analyzing trace with hash 398044178, now seen corresponding path program 1 times [2019-12-27 18:18:28,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:28,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245571927] [2019-12-27 18:18:28,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:28,284 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 18:18:28,284 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245571927] [2019-12-27 18:18:28,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:28,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:18:28,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1451853181] [2019-12-27 18:18:28,285 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:28,287 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:28,290 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:18:28,290 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:28,290 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:28,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:18:28,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:28,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:18:28,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:18:28,293 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 18:18:28,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:28,314 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-27 18:18:28,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:18:28,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:18:28,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:28,315 INFO L225 Difference]: With dead ends: 23 [2019-12-27 18:18:28,315 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 18:18:28,316 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:18:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 18:18:28,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 18:18:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 18:18:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-27 18:18:28,319 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-27 18:18:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:28,319 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-27 18:18:28,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:18:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-27 18:18:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:18:28,320 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:18:28,320 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:18:28,320 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:18:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:18:28,321 INFO L82 PathProgramCache]: Analyzing trace with hash -462405218, now seen corresponding path program 2 times [2019-12-27 18:18:28,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:18:28,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037818218] [2019-12-27 18:18:28,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:18:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:18:28,383 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 18:18:28,384 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037818218] [2019-12-27 18:18:28,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:18:28,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:18:28,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [123903238] [2019-12-27 18:18:28,385 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:18:28,390 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:18:28,392 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 18:18:28,392 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:18:28,392 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:18:28,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:18:28,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:18:28,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:18:28,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:18:28,394 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-27 18:18:28,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:18:28,417 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-27 18:18:28,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:18:28,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:18:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:18:28,418 INFO L225 Difference]: With dead ends: 14 [2019-12-27 18:18:28,418 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:18:28,418 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 18:18:28,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:18:28,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:18:28,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:18:28,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:18:28,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:18:28,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:18:28,420 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:18:28,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:18:28,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:18:28,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:18:28,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:18:28 BasicIcfg [2019-12-27 18:18:28,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:18:28,434 INFO L168 Benchmark]: Toolchain (without parser) took 4211.13 ms. Allocated memory was 138.4 MB in the beginning and 247.5 MB in the end (delta: 109.1 MB). Free memory was 101.2 MB in the beginning and 113.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 96.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:28,435 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-27 18:18:28,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.13 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 157.8 MB in the end (delta: -56.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:28,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.97 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:28,443 INFO L168 Benchmark]: Boogie Preprocessor took 43.59 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:28,444 INFO L168 Benchmark]: RCFGBuilder took 425.50 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 134.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:28,445 INFO L168 Benchmark]: TraceAbstraction took 2948.59 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 133.3 MB in the beginning and 113.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:18:28,456 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.13 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 157.8 MB in the end (delta: -56.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 80.97 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.59 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 425.50 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 134.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2948.59 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 133.3 MB in the beginning and 113.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 246 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 18 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 504 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: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 14 SDslu, 37 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...