/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:20:12,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:20:12,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:20:12,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:20:12,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:20:12,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:20:12,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:20:12,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:20:12,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:20:12,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:20:12,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:20:12,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:20:12,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:20:12,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:20:12,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:20:12,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:20:12,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:20:12,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:20:12,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:20:12,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:20:12,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:20:12,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:20:12,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:20:12,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:20:12,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:20:12,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:20:12,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:20:12,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:20:12,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:20:12,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:20:12,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:20:12,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:20:12,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:20:12,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:20:12,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:20:12,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:20:12,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:20:12,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:20:12,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:20:12,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:20:12,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:20:12,549 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:20:12,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:20:12,550 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:20:12,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:20:12,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:20:12,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:20:12,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:20:12,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:20:12,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:20:12,553 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:20:12,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:20:12,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:20:12,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:20:12,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:20:12,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:20:12,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:20:12,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:20:12,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:20:12,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:20:12,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:20:12,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:20:12,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:20:12,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:20:12,556 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:20:12,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:20:12,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:20:12,557 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:20:12,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:20:12,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:20:12,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:20:12,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:20:12,922 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:20:12,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-22 02:20:12,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b0da159/7530509f119c41528807c4d751ceee25/FLAGd3002d8f6 [2020-10-22 02:20:13,580 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:20:13,581 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-10-22 02:20:13,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b0da159/7530509f119c41528807c4d751ceee25/FLAGd3002d8f6 [2020-10-22 02:20:13,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b0da159/7530509f119c41528807c4d751ceee25 [2020-10-22 02:20:13,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:20:13,883 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:20:13,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:20:13,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:20:13,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:20:13,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:20:13" (1/1) ... [2020-10-22 02:20:13,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792afed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:13, skipping insertion in model container [2020-10-22 02:20:13,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:20:13" (1/1) ... [2020-10-22 02:20:13,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:20:13,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:20:14,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:20:14,537 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:20:14,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:20:14,667 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:20:14,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14 WrapperNode [2020-10-22 02:20:14,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:20:14,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:20:14,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:20:14,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:20:14,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:20:14,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:20:14,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:20:14,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:20:14,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (1/1) ... [2020-10-22 02:20:14,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:20:14,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:20:14,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:20:14,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:20:14,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (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 [2020-10-22 02:20:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:20:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:20:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:20:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:20:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:20:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:20:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:20:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:20:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:20:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:20:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:20:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:20:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:20:14,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:20:14,837 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:20:15,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:20:15,274 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:20:15,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:20:15 BoogieIcfgContainer [2020-10-22 02:20:15,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:20:15,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:20:15,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:20:15,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:20:15,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:20:13" (1/3) ... [2020-10-22 02:20:15,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b364f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:20:15, skipping insertion in model container [2020-10-22 02:20:15,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:20:14" (2/3) ... [2020-10-22 02:20:15,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b364f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:20:15, skipping insertion in model container [2020-10-22 02:20:15,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:20:15" (3/3) ... [2020-10-22 02:20:15,286 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-10-22 02:20:15,299 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:20:15,300 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:20:15,309 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:20:15,310 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:20:15,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,344 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,344 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,345 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,345 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,346 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,346 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,346 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,347 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,351 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,351 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,351 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,352 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,357 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,361 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,361 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,361 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,362 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:20:15,363 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:20:15,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:20:15,394 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:20:15,394 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:20:15,395 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:20:15,395 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:20:15,395 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:20:15,395 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:20:15,395 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:20:15,396 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:20:15,409 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:20:15,410 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-22 02:20:15,413 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-22 02:20:15,415 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-10-22 02:20:15,467 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-10-22 02:20:15,468 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:20:15,473 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:20:15,476 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:20:16,635 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-22 02:20:16,917 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-22 02:20:17,061 INFO L131 LiptonReduction]: Checked pairs total: 3066 [2020-10-22 02:20:17,061 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-22 02:20:17,070 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 02:20:17,123 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 02:20:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 02:20:17,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:20:17,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:20:17,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:20:17,157 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:20:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:20:17,163 INFO L82 PathProgramCache]: Analyzing trace with hash 147242941, now seen corresponding path program 1 times [2020-10-22 02:20:17,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:20:17,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104242768] [2020-10-22 02:20:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:20:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:20:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:20:17,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104242768] [2020-10-22 02:20:17,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:20:17,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:20:17,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1825752546] [2020-10-22 02:20:17,394 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:20:17,398 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:20:17,415 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:20:17,416 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:20:17,421 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:20:17,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:20:17,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:20:17,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:20:17,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:20:17,442 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 02:20:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:20:17,465 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 02:20:17,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:20:17,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 02:20:17,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:20:17,486 INFO L225 Difference]: With dead ends: 362 [2020-10-22 02:20:17,486 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 02:20:17,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:20:17,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 02:20:17,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 02:20:17,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 02:20:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 02:20:17,566 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 02:20:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:20:17,571 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 02:20:17,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:20:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 02:20:17,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:20:17,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:20:17,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:20:17,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:20:17,574 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:20:17,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:20:17,575 INFO L82 PathProgramCache]: Analyzing trace with hash 269557700, now seen corresponding path program 1 times [2020-10-22 02:20:17,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:20:17,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011408868] [2020-10-22 02:20:17,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:20:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:20:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:20:17,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011408868] [2020-10-22 02:20:17,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:20:17,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:20:17,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2077699961] [2020-10-22 02:20:17,701 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:20:17,701 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:20:17,703 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 02:20:17,703 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:20:17,703 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:20:17,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:20:17,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:20:17,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:20:17,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:20:17,709 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-22 02:20:17,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:20:17,739 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-22 02:20:17,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:20:17,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 02:20:17,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:20:17,742 INFO L225 Difference]: With dead ends: 217 [2020-10-22 02:20:17,742 INFO L226 Difference]: Without dead ends: 217 [2020-10-22 02:20:17,743 INFO L677 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 [2020-10-22 02:20:17,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-22 02:20:17,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-22 02:20:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-22 02:20:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-22 02:20:17,759 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-22 02:20:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:20:17,759 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-22 02:20:17,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:20:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-22 02:20:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:20:17,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:20:17,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:20:17,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:20:17,762 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:20:17,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:20:17,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1876534856, now seen corresponding path program 1 times [2020-10-22 02:20:17,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:20:17,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305646393] [2020-10-22 02:20:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:20:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:20:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:20:17,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305646393] [2020-10-22 02:20:17,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:20:17,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:20:17,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1998980636] [2020-10-22 02:20:17,836 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:20:17,837 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:20:17,840 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions. [2020-10-22 02:20:17,840 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:20:18,035 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2429#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:20:18,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:20:18,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:20:18,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:20:18,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:20:18,037 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-10-22 02:20:18,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:20:18,066 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-22 02:20:18,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:20:18,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 02:20:18,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:20:18,084 INFO L225 Difference]: With dead ends: 136 [2020-10-22 02:20:18,084 INFO L226 Difference]: Without dead ends: 136 [2020-10-22 02:20:18,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:20:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-22 02:20:18,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-22 02:20:18,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-22 02:20:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-22 02:20:18,100 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-22 02:20:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:20:18,100 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-22 02:20:18,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:20:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-22 02:20:18,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 02:20:18,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:20:18,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:20:18,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:20:18,106 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:20:18,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:20:18,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1466848330, now seen corresponding path program 1 times [2020-10-22 02:20:18,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:20:18,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994670434] [2020-10-22 02:20:18,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:20:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:20:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:20:18,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994670434] [2020-10-22 02:20:18,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:20:18,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:20:18,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [551348043] [2020-10-22 02:20:18,238 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:20:18,240 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:20:18,248 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 93 transitions. [2020-10-22 02:20:18,249 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:20:18,544 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2843#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:20:18,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:20:18,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:20:18,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:20:18,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:20:18,546 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-10-22 02:20:18,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:20:18,577 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-22 02:20:18,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:20:18,577 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-22 02:20:18,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:20:18,578 INFO L225 Difference]: With dead ends: 109 [2020-10-22 02:20:18,578 INFO L226 Difference]: Without dead ends: 109 [2020-10-22 02:20:18,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:20:18,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-22 02:20:18,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-22 02:20:18,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-22 02:20:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-22 02:20:18,584 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-22 02:20:18,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:20:18,584 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-22 02:20:18,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:20:18,584 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-22 02:20:18,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:20:18,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:20:18,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:20:18,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:20:18,587 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:20:18,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:20:18,587 INFO L82 PathProgramCache]: Analyzing trace with hash -182122517, now seen corresponding path program 1 times [2020-10-22 02:20:18,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:20:18,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996857432] [2020-10-22 02:20:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:20:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:20:18,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:20:18,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996857432] [2020-10-22 02:20:18,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:20:18,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:20:18,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1888742134] [2020-10-22 02:20:18,662 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:20:18,664 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:20:18,675 INFO L252 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions. [2020-10-22 02:20:18,675 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:20:18,747 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:20:18,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:20:18,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:20:18,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:20:18,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:20:18,748 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-22 02:20:18,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:20:18,768 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-22 02:20:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:20:18,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-22 02:20:18,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:20:18,769 INFO L225 Difference]: With dead ends: 135 [2020-10-22 02:20:18,769 INFO L226 Difference]: Without dead ends: 55 [2020-10-22 02:20:18,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:20:18,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-22 02:20:18,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-22 02:20:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-22 02:20:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-22 02:20:18,773 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-22 02:20:18,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:20:18,773 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-22 02:20:18,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:20:18,774 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-22 02:20:18,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:20:18,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:20:18,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:20:18,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:20:18,775 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:20:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:20:18,776 INFO L82 PathProgramCache]: Analyzing trace with hash -499320339, now seen corresponding path program 2 times [2020-10-22 02:20:18,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:20:18,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737425754] [2020-10-22 02:20:18,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:20:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:20:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:20:18,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737425754] [2020-10-22 02:20:18,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:20:18,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:20:18,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1148939493] [2020-10-22 02:20:18,861 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:20:18,863 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:20:18,871 INFO L252 McrAutomatonBuilder]: Finished intersection with 77 states and 134 transitions. [2020-10-22 02:20:18,872 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:20:18,905 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:20:18,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:20:18,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:20:18,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:20:18,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:20:18,907 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-22 02:20:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:20:18,926 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2020-10-22 02:20:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:20:18,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-22 02:20:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:20:18,927 INFO L225 Difference]: With dead ends: 75 [2020-10-22 02:20:18,927 INFO L226 Difference]: Without dead ends: 37 [2020-10-22 02:20:18,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:20:18,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-22 02:20:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-22 02:20:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-22 02:20:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-22 02:20:18,930 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-22 02:20:18,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:20:18,931 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-22 02:20:18,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:20:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-22 02:20:18,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:20:18,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:20:18,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:20:18,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:20:18,932 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:20:18,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:20:18,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1121061337, now seen corresponding path program 3 times [2020-10-22 02:20:18,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:20:18,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145811588] [2020-10-22 02:20:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:20:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:20:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:20:18,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145811588] [2020-10-22 02:20:18,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:20:18,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:20:18,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [55145673] [2020-10-22 02:20:18,978 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:20:18,980 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:20:18,991 INFO L252 McrAutomatonBuilder]: Finished intersection with 77 states and 129 transitions. [2020-10-22 02:20:18,991 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:20:18,995 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:20:18,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:20:18,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:20:18,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:20:18,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:20:18,997 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-10-22 02:20:19,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:20:19,009 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-22 02:20:19,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:20:19,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-22 02:20:19,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:20:19,010 INFO L225 Difference]: With dead ends: 36 [2020-10-22 02:20:19,027 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:20:19,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:20:19,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:20:19,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:20:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:20:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:20:19,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 02:20:19,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:20:19,029 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:20:19,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:20:19,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:20:19,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:20:19,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:20:19,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:20:19 BasicIcfg [2020-10-22 02:20:19,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:20:19,035 INFO L168 Benchmark]: Toolchain (without parser) took 5158.37 ms. Allocated memory was 141.0 MB in the beginning and 281.0 MB in the end (delta: 140.0 MB). Free memory was 102.7 MB in the beginning and 249.2 MB in the end (delta: -146.5 MB). Peak memory consumption was 115.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:20:19,039 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.2 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-22 02:20:19,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.81 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 159.0 MB in the end (delta: -57.1 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:20:19,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.01 ms. Allocated memory is still 205.0 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:20:19,042 INFO L168 Benchmark]: Boogie Preprocessor took 28.75 ms. Allocated memory is still 205.0 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:20:19,042 INFO L168 Benchmark]: RCFGBuilder took 528.93 ms. Allocated memory is still 205.0 MB. Free memory was 155.1 MB in the beginning and 131.3 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:20:19,043 INFO L168 Benchmark]: TraceAbstraction took 3755.72 ms. Allocated memory was 205.0 MB in the beginning and 281.0 MB in the end (delta: 76.0 MB). Free memory was 130.3 MB in the beginning and 249.2 MB in the end (delta: -118.8 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:20:19,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.2 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 783.81 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 159.0 MB in the end (delta: -57.1 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.01 ms. Allocated memory is still 205.0 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.75 ms. Allocated memory is still 205.0 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 528.93 ms. Allocated memory is still 205.0 MB. Free memory was 155.1 MB in the beginning and 131.3 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3755.72 ms. Allocated memory was 205.0 MB in the beginning and 281.0 MB in the end (delta: 76.0 MB). Free memory was 130.3 MB in the beginning and 249.2 MB in the end (delta: -118.8 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 744 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 51 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 84 PlacesBefore, 32 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 3066 MoverChecksTotal - PositiveResult [Line: 17]: 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 130 SDtfs, 55 SDslu, 181 SDs, 0 SdLazy, 56 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...