/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 00:27:37,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 00:27:37,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 00:27:37,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 00:27:37,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 00:27:37,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 00:27:37,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 00:27:37,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 00:27:37,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 00:27:37,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 00:27:37,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 00:27:37,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 00:27:37,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 00:27:37,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 00:27:37,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 00:27:37,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 00:27:37,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 00:27:37,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 00:27:37,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 00:27:37,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 00:27:37,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 00:27:37,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 00:27:37,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 00:27:37,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 00:27:37,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 00:27:37,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 00:27:37,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 00:27:37,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 00:27:37,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 00:27:37,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 00:27:37,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 00:27:37,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 00:27:37,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 00:27:37,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 00:27:37,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 00:27:37,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 00:27:37,102 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-WP.epf [2020-09-18 00:27:37,128 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 00:27:37,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 00:27:37,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 00:27:37,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 00:27:37,130 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 00:27:37,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 00:27:37,130 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 00:27:37,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 00:27:37,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 00:27:37,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 00:27:37,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 00:27:37,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 00:27:37,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 00:27:37,132 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 00:27:37,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 00:27:37,132 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 00:27:37,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 00:27:37,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 00:27:37,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 00:27:37,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 00:27:37,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 00:27:37,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:27:37,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 00:27:37,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 00:27:37,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 00:27:37,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 00:27:37,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 00:27:37,134 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 00:27:37,135 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 00:27:37,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 00:27:37,135 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 00:27:37,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 00:27:37,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 00:27:37,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 00:27:37,635 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 00:27:37,637 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 00:27:37,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-09-18 00:27:37,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c390b858d/495f54608b3e40e8ac4f21541209989c/FLAGb1198bd22 [2020-09-18 00:27:38,332 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 00:27:38,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-09-18 00:27:38,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c390b858d/495f54608b3e40e8ac4f21541209989c/FLAGb1198bd22 [2020-09-18 00:27:38,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c390b858d/495f54608b3e40e8ac4f21541209989c [2020-09-18 00:27:38,605 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 00:27:38,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 00:27:38,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 00:27:38,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 00:27:38,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 00:27:38,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:27:38" (1/1) ... [2020-09-18 00:27:38,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689fd9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:38, skipping insertion in model container [2020-09-18 00:27:38,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:27:38" (1/1) ... [2020-09-18 00:27:38,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 00:27:38,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 00:27:39,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:27:39,247 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 00:27:39,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:27:39,403 INFO L208 MainTranslator]: Completed translation [2020-09-18 00:27:39,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39 WrapperNode [2020-09-18 00:27:39,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 00:27:39,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 00:27:39,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 00:27:39,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 00:27:39,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 00:27:39,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 00:27:39,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 00:27:39,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 00:27:39,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... [2020-09-18 00:27:39,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 00:27:39,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 00:27:39,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 00:27:39,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 00:27:39,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:27:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 00:27:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 00:27:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 00:27:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 00:27:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 00:27:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 00:27:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 00:27:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 00:27:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 00:27:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 00:27:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 00:27:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 00:27:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 00:27:39,583 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 00:27:39,999 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 00:27:40,000 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 00:27:40,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:27:40 BoogieIcfgContainer [2020-09-18 00:27:40,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 00:27:40,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 00:27:40,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 00:27:40,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 00:27:40,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:27:38" (1/3) ... [2020-09-18 00:27:40,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566faa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:27:40, skipping insertion in model container [2020-09-18 00:27:40,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:27:39" (2/3) ... [2020-09-18 00:27:40,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566faa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:27:40, skipping insertion in model container [2020-09-18 00:27:40,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:27:40" (3/3) ... [2020-09-18 00:27:40,015 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2020-09-18 00:27:40,027 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 00:27:40,027 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 00:27:40,038 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 00:27:40,039 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 00:27:40,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,069 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,069 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,070 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,070 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,071 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,072 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,073 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,073 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,078 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,079 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,079 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,089 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,090 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,090 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:27:40,112 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 00:27:40,136 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 00:27:40,136 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 00:27:40,136 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 00:27:40,136 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 00:27:40,136 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 00:27:40,137 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 00:27:40,137 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 00:27:40,137 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 00:27:40,154 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-18 00:27:40,157 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-18 00:27:40,211 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-18 00:27:40,211 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:27:40,217 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 00:27:40,220 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-18 00:27:40,242 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-18 00:27:40,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:27:40,243 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 00:27:40,246 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-18 00:27:40,247 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 00:27:41,645 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2250 [2020-09-18 00:27:41,645 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-09-18 00:27:41,650 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-18 00:27:41,683 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-18 00:27:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-18 00:27:41,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 00:27:41,695 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:27:41,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:27:41,697 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:27:41,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:27:41,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-09-18 00:27:41,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:27:41,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104795567] [2020-09-18 00:27:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:27:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:27:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:27:41,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104795567] [2020-09-18 00:27:41,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:27:41,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:27:41,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1841211752] [2020-09-18 00:27:41,924 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:27:41,927 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:27:41,944 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-18 00:27:41,944 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:27:41,946 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:27:41,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 00:27:41,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:27:41,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 00:27:41,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 00:27:41,966 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-18 00:27:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:27:42,001 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-18 00:27:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 00:27:42,003 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-18 00:27:42,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:27:42,023 INFO L225 Difference]: With dead ends: 362 [2020-09-18 00:27:42,023 INFO L226 Difference]: Without dead ends: 298 [2020-09-18 00:27:42,025 INFO L675 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 [2020-09-18 00:27:42,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-18 00:27:42,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-18 00:27:42,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-18 00:27:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-18 00:27:42,110 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-18 00:27:42,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:27:42,111 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-18 00:27:42,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 00:27:42,112 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-18 00:27:42,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-18 00:27:42,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:27:42,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:27:42,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 00:27:42,114 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:27:42,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:27:42,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-09-18 00:27:42,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:27:42,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674506879] [2020-09-18 00:27:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:27:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:27:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:27:42,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674506879] [2020-09-18 00:27:42,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:27:42,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:27:42,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [496795779] [2020-09-18 00:27:42,292 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:27:42,293 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:27:42,295 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-18 00:27:42,297 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:27:42,297 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:27:42,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:27:42,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:27:42,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:27:42,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:27:42,301 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-09-18 00:27:42,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:27:42,360 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-09-18 00:27:42,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:27:42,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-18 00:27:42,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:27:42,367 INFO L225 Difference]: With dead ends: 346 [2020-09-18 00:27:42,367 INFO L226 Difference]: Without dead ends: 282 [2020-09-18 00:27:42,368 INFO L675 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 [2020-09-18 00:27:42,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-18 00:27:42,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-09-18 00:27:42,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-18 00:27:42,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-09-18 00:27:42,410 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-09-18 00:27:42,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:27:42,410 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-09-18 00:27:42,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:27:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-09-18 00:27:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 00:27:42,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:27:42,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:27:42,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 00:27:42,413 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:27:42,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:27:42,414 INFO L82 PathProgramCache]: Analyzing trace with hash -397112394, now seen corresponding path program 1 times [2020-09-18 00:27:42,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:27:42,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449528051] [2020-09-18 00:27:42,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:27:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:27:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:27:42,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449528051] [2020-09-18 00:27:42,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:27:42,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:27:42,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1410828610] [2020-09-18 00:27:42,525 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:27:42,526 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:27:42,528 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-09-18 00:27:42,528 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:27:42,589 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:27:42,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:27:42,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:27:42,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:27:42,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:27:42,591 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-09-18 00:27:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:27:42,612 INFO L93 Difference]: Finished difference Result 310 states and 844 transitions. [2020-09-18 00:27:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:27:42,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-18 00:27:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:27:42,615 INFO L225 Difference]: With dead ends: 310 [2020-09-18 00:27:42,615 INFO L226 Difference]: Without dead ends: 254 [2020-09-18 00:27:42,616 INFO L675 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 [2020-09-18 00:27:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-18 00:27:42,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-09-18 00:27:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-18 00:27:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 708 transitions. [2020-09-18 00:27:42,630 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 708 transitions. Word has length 10 [2020-09-18 00:27:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:27:42,631 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 708 transitions. [2020-09-18 00:27:42,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:27:42,631 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 708 transitions. [2020-09-18 00:27:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 00:27:42,633 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:27:42,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:27:42,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 00:27:42,633 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:27:42,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:27:42,634 INFO L82 PathProgramCache]: Analyzing trace with hash 2136948955, now seen corresponding path program 1 times [2020-09-18 00:27:42,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:27:42,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280067163] [2020-09-18 00:27:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:27:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:27:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:27:42,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280067163] [2020-09-18 00:27:42,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:27:42,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:27:42,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1110684206] [2020-09-18 00:27:42,715 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:27:42,717 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:27:42,719 INFO L274 McrAutomatonBuilder]: Finished intersection with 24 states and 38 transitions. [2020-09-18 00:27:42,719 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:27:42,782 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:27:42,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 00:27:42,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:27:42,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 00:27:42,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:27:42,784 INFO L87 Difference]: Start difference. First operand 254 states and 708 transitions. Second operand 5 states. [2020-09-18 00:27:42,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:27:42,826 INFO L93 Difference]: Finished difference Result 320 states and 860 transitions. [2020-09-18 00:27:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 00:27:42,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-18 00:27:42,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:27:42,828 INFO L225 Difference]: With dead ends: 320 [2020-09-18 00:27:42,828 INFO L226 Difference]: Without dead ends: 158 [2020-09-18 00:27:42,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 00:27:42,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-18 00:27:42,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-09-18 00:27:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-18 00:27:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-09-18 00:27:42,836 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 11 [2020-09-18 00:27:42,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:27:42,836 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-09-18 00:27:42,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 00:27:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-09-18 00:27:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 00:27:42,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:27:42,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:27:42,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 00:27:42,839 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:27:42,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:27:42,839 INFO L82 PathProgramCache]: Analyzing trace with hash 625195173, now seen corresponding path program 1 times [2020-09-18 00:27:42,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:27:42,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790778292] [2020-09-18 00:27:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:27:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:27:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:27:42,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790778292] [2020-09-18 00:27:42,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:27:42,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:27:42,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [163175653] [2020-09-18 00:27:42,964 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:27:42,965 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:27:42,968 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 38 transitions. [2020-09-18 00:27:42,969 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:27:43,088 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:27:43,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:27:43,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:27:43,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:27:43,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:27:43,089 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 4 states. [2020-09-18 00:27:43,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:27:43,108 INFO L93 Difference]: Finished difference Result 170 states and 410 transitions. [2020-09-18 00:27:43,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:27:43,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-18 00:27:43,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:27:43,113 INFO L225 Difference]: With dead ends: 170 [2020-09-18 00:27:43,114 INFO L226 Difference]: Without dead ends: 146 [2020-09-18 00:27:43,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:27:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-18 00:27:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-18 00:27:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-18 00:27:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-09-18 00:27:43,120 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 12 [2020-09-18 00:27:43,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:27:43,120 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-09-18 00:27:43,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:27:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-09-18 00:27:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 00:27:43,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:27:43,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:27:43,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 00:27:43,124 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:27:43,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:27:43,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1939864517, now seen corresponding path program 1 times [2020-09-18 00:27:43,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:27:43,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525833995] [2020-09-18 00:27:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:27:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:27:43,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:27:43,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525833995] [2020-09-18 00:27:43,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:27:43,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:27:43,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [379736361] [2020-09-18 00:27:43,284 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:27:43,285 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:27:43,289 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-09-18 00:27:43,289 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:27:43,366 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:27:43,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 00:27:43,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:27:43,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 00:27:43,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:27:43,368 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-09-18 00:27:43,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:27:43,405 INFO L93 Difference]: Finished difference Result 176 states and 423 transitions. [2020-09-18 00:27:43,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 00:27:43,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-18 00:27:43,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:27:43,407 INFO L225 Difference]: With dead ends: 176 [2020-09-18 00:27:43,407 INFO L226 Difference]: Without dead ends: 98 [2020-09-18 00:27:43,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 00:27:43,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-18 00:27:43,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-18 00:27:43,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-18 00:27:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-09-18 00:27:43,412 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-09-18 00:27:43,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:27:43,412 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-09-18 00:27:43,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 00:27:43,412 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-09-18 00:27:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 00:27:43,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:27:43,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:27:43,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 00:27:43,414 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:27:43,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:27:43,414 INFO L82 PathProgramCache]: Analyzing trace with hash -484565939, now seen corresponding path program 1 times [2020-09-18 00:27:43,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:27:43,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330047051] [2020-09-18 00:27:43,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:27:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:27:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:27:43,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330047051] [2020-09-18 00:27:43,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:27:43,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:27:43,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [875294136] [2020-09-18 00:27:43,473 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:27:43,475 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:27:43,479 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-09-18 00:27:43,479 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:27:43,500 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:27:43,516 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:27:43,526 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:27:43,535 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:27:43,545 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:27:43,550 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:27:43,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:27:43,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:27:43,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:27:43,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:27:43,552 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 4 states. [2020-09-18 00:27:43,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:27:43,580 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-09-18 00:27:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:27:43,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-18 00:27:43,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:27:43,581 INFO L225 Difference]: With dead ends: 74 [2020-09-18 00:27:43,581 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 00:27:43,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:27:43,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 00:27:43,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 00:27:43,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 00:27:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 00:27:43,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-18 00:27:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:27:43,583 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 00:27:43,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:27:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 00:27:43,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 00:27:43,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 00:27:43,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:27:43 BasicIcfg [2020-09-18 00:27:43,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 00:27:43,592 INFO L168 Benchmark]: Toolchain (without parser) took 4984.68 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 101.8 MB in the beginning and 165.3 MB in the end (delta: -63.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2020-09-18 00:27:43,593 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-18 00:27:43,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.21 ms. Allocated memory was 140.0 MB in the beginning and 207.1 MB in the end (delta: 67.1 MB). Free memory was 101.2 MB in the beginning and 164.6 MB in the end (delta: -63.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-18 00:27:43,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.52 ms. Allocated memory is still 207.1 MB. Free memory was 164.6 MB in the beginning and 162.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:27:43,596 INFO L168 Benchmark]: Boogie Preprocessor took 31.71 ms. Allocated memory is still 207.1 MB. Free memory was 162.6 MB in the beginning and 161.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-18 00:27:43,597 INFO L168 Benchmark]: RCFGBuilder took 506.28 ms. Allocated memory is still 207.1 MB. Free memory was 161.2 MB in the beginning and 139.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-18 00:27:43,598 INFO L168 Benchmark]: TraceAbstraction took 3582.15 ms. Allocated memory was 207.1 MB in the beginning and 246.9 MB in the end (delta: 39.8 MB). Free memory was 138.4 MB in the beginning and 165.3 MB in the end (delta: -27.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-18 00:27:43,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.21 ms. Allocated memory was 140.0 MB in the beginning and 207.1 MB in the end (delta: 67.1 MB). Free memory was 101.2 MB in the beginning and 164.6 MB in the end (delta: -63.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.52 ms. Allocated memory is still 207.1 MB. Free memory was 164.6 MB in the beginning and 162.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.71 ms. Allocated memory is still 207.1 MB. Free memory was 162.6 MB in the beginning and 161.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 506.28 ms. Allocated memory is still 207.1 MB. Free memory was 161.2 MB in the beginning and 139.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3582.15 ms. Allocated memory was 207.1 MB in the beginning and 246.9 MB in the end (delta: 39.8 MB). Free memory was 138.4 MB in the beginning and 165.3 MB in the end (delta: -27.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 78 ProgramPointsBefore, 32 ProgramPointsAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 637 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2250 CheckedPairsTotal, 55 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 157 SDtfs, 133 SDslu, 203 SDs, 0 SdLazy, 59 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 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, 0.5s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2110 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...