/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 02:44:35,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 02:44:35,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 02:44:35,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 02:44:35,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 02:44:35,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 02:44:35,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 02:44:35,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 02:44:35,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 02:44:35,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 02:44:35,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 02:44:35,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 02:44:35,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 02:44:36,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 02:44:36,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 02:44:36,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 02:44:36,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 02:44:36,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 02:44:36,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 02:44:36,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 02:44:36,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 02:44:36,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 02:44:36,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 02:44:36,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 02:44:36,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 02:44:36,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 02:44:36,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 02:44:36,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 02:44:36,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 02:44:36,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 02:44:36,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 02:44:36,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 02:44:36,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 02:44:36,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 02:44:36,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 02:44:36,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 02:44:36,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-28 02:44:36,067 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 02:44:36,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 02:44:36,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 02:44:36,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 02:44:36,069 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 02:44:36,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 02:44:36,070 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 02:44:36,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 02:44:36,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 02:44:36,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 02:44:36,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 02:44:36,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 02:44:36,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 02:44:36,071 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 02:44:36,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 02:44:36,072 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 02:44:36,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 02:44:36,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 02:44:36,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 02:44:36,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 02:44:36,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 02:44:36,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 02:44:36,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 02:44:36,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 02:44:36,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 02:44:36,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 02:44:36,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 02:44:36,074 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 02:44:36,074 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 02:44:36,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 02:44:36,075 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 02:44:36,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 02:44:36,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 02:44:36,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 02:44:36,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 02:44:36,380 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 02:44:36,381 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 02:44:36,381 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_rmo.opt.i [2019-12-28 02:44:36,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53bc4c8b/06a1551b3b4b431794474b5b3fad270b/FLAGaa7766f24 [2019-12-28 02:44:37,020 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 02:44:37,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_rmo.opt.i [2019-12-28 02:44:37,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53bc4c8b/06a1551b3b4b431794474b5b3fad270b/FLAGaa7766f24 [2019-12-28 02:44:37,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53bc4c8b/06a1551b3b4b431794474b5b3fad270b [2019-12-28 02:44:37,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 02:44:37,313 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 02:44:37,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 02:44:37,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 02:44:37,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 02:44:37,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:44:37" (1/1) ... [2019-12-28 02:44:37,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74df8f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:37, skipping insertion in model container [2019-12-28 02:44:37,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:44:37" (1/1) ... [2019-12-28 02:44:37,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 02:44:37,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 02:44:37,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 02:44:37,930 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 02:44:38,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 02:44:38,095 INFO L208 MainTranslator]: Completed translation [2019-12-28 02:44:38,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38 WrapperNode [2019-12-28 02:44:38,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 02:44:38,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 02:44:38,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 02:44:38,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 02:44:38,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 02:44:38,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 02:44:38,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 02:44:38,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 02:44:38,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... [2019-12-28 02:44:38,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 02:44:38,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 02:44:38,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 02:44:38,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 02:44:38,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 02:44:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 02:44:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 02:44:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 02:44:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 02:44:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 02:44:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 02:44:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 02:44:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 02:44:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 02:44:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 02:44:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 02:44:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 02:44:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 02:44:38,302 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 02:44:39,005 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 02:44:39,005 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-28 02:44:39,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:44:39 BoogieIcfgContainer [2019-12-28 02:44:39,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 02:44:39,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 02:44:39,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 02:44:39,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 02:44:39,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 02:44:37" (1/3) ... [2019-12-28 02:44:39,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6033dbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:44:39, skipping insertion in model container [2019-12-28 02:44:39,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:44:38" (2/3) ... [2019-12-28 02:44:39,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6033dbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:44:39, skipping insertion in model container [2019-12-28 02:44:39,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:44:39" (3/3) ... [2019-12-28 02:44:39,015 INFO L109 eAbstractionObserver]: Analyzing ICFG mix045_rmo.opt.i [2019-12-28 02:44:39,026 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 02:44:39,026 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 02:44:39,034 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-28 02:44:39,035 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 02:44:39,071 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,072 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,072 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,072 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,073 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,073 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,073 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,074 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,074 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,074 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,074 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,075 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,075 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,075 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,075 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,076 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,076 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,076 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,077 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,077 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,077 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,077 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,078 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,078 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,078 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,078 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,079 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,079 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,079 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,080 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,080 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,080 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,080 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,081 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,081 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,081 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,082 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,082 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,083 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,085 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,085 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,085 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,086 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,087 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,087 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,088 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,088 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,088 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,088 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,089 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,089 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,089 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,089 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,090 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,091 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,091 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,091 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,092 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,092 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,092 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,092 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,093 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,093 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,094 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,094 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,094 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,095 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,100 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,101 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,101 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,101 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,102 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,102 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,102 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,102 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,102 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,104 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,104 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,104 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,107 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,108 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,108 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,108 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,110 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,110 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,111 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,111 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,111 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,111 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,111 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,112 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,112 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,112 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 02:44:39,130 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-28 02:44:39,167 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 02:44:39,167 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 02:44:39,168 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 02:44:39,171 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 02:44:39,172 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 02:44:39,172 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 02:44:39,173 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 02:44:39,178 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 02:44:39,199 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 164 places, 195 transitions [2019-12-28 02:44:51,949 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 92467 states. [2019-12-28 02:44:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 92467 states. [2019-12-28 02:44:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-12-28 02:44:51,966 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:44:51,967 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:44:51,968 INFO L410 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:44:51,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:44:51,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1399349606, now seen corresponding path program 1 times [2019-12-28 02:44:51,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:44:51,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937857023] [2019-12-28 02:44:51,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:44:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:44:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:44:52,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937857023] [2019-12-28 02:44:52,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:44:52,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 02:44:52,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1325393623] [2019-12-28 02:44:52,331 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:44:52,340 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:44:52,366 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 47 states and 46 transitions. [2019-12-28 02:44:52,366 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:44:52,372 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 02:44:52,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 02:44:52,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:44:52,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 02:44:52,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 02:44:52,392 INFO L87 Difference]: Start difference. First operand 92467 states. Second operand 4 states. [2019-12-28 02:44:53,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:44:53,735 INFO L93 Difference]: Finished difference Result 96403 states and 448739 transitions. [2019-12-28 02:44:53,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-28 02:44:53,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2019-12-28 02:44:53,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:44:54,379 INFO L225 Difference]: With dead ends: 96403 [2019-12-28 02:44:54,379 INFO L226 Difference]: Without dead ends: 85523 [2019-12-28 02:44:54,381 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 02:44:57,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85523 states. [2019-12-28 02:45:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85523 to 85523. [2019-12-28 02:45:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85523 states. [2019-12-28 02:45:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85523 states to 85523 states and 400699 transitions. [2019-12-28 02:45:01,432 INFO L78 Accepts]: Start accepts. Automaton has 85523 states and 400699 transitions. Word has length 46 [2019-12-28 02:45:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:45:01,434 INFO L462 AbstractCegarLoop]: Abstraction has 85523 states and 400699 transitions. [2019-12-28 02:45:01,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 02:45:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 85523 states and 400699 transitions. [2019-12-28 02:45:01,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-28 02:45:01,447 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:45:01,447 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:45:01,447 INFO L410 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:45:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:45:01,448 INFO L82 PathProgramCache]: Analyzing trace with hash -15854826, now seen corresponding path program 1 times [2019-12-28 02:45:01,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:45:01,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805936239] [2019-12-28 02:45:01,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:45:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:45:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:45:01,571 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805936239] [2019-12-28 02:45:01,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:45:01,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 02:45:01,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [97153236] [2019-12-28 02:45:01,572 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:45:01,579 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:45:01,596 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 82 states and 109 transitions. [2019-12-28 02:45:01,597 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:45:01,649 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 02:45:01,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 02:45:01,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:45:01,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 02:45:01,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-28 02:45:01,652 INFO L87 Difference]: Start difference. First operand 85523 states and 400699 transitions. Second operand 6 states. [2019-12-28 02:45:06,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:45:06,587 INFO L93 Difference]: Finished difference Result 139651 states and 623535 transitions. [2019-12-28 02:45:06,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 02:45:06,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2019-12-28 02:45:06,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:45:07,921 INFO L225 Difference]: With dead ends: 139651 [2019-12-28 02:45:07,921 INFO L226 Difference]: Without dead ends: 138931 [2019-12-28 02:45:07,922 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-12-28 02:45:08,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138931 states. [2019-12-28 02:45:15,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138931 to 132787. [2019-12-28 02:45:15,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132787 states. [2019-12-28 02:45:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132787 states to 132787 states and 597163 transitions. [2019-12-28 02:45:15,650 INFO L78 Accepts]: Start accepts. Automaton has 132787 states and 597163 transitions. Word has length 53 [2019-12-28 02:45:15,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:45:15,651 INFO L462 AbstractCegarLoop]: Abstraction has 132787 states and 597163 transitions. [2019-12-28 02:45:15,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 02:45:15,651 INFO L276 IsEmpty]: Start isEmpty. Operand 132787 states and 597163 transitions. [2019-12-28 02:45:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-12-28 02:45:15,660 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:45:15,660 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:45:15,661 INFO L410 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:45:15,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:45:15,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1946503039, now seen corresponding path program 1 times [2019-12-28 02:45:15,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:45:15,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465486626] [2019-12-28 02:45:15,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:45:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:45:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:45:15,850 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465486626] [2019-12-28 02:45:15,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:45:15,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 02:45:15,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [300320352] [2019-12-28 02:45:15,851 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:45:15,858 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:45:15,864 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 55 states and 54 transitions. [2019-12-28 02:45:15,864 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:45:15,865 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 02:45:15,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 02:45:15,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:45:15,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 02:45:15,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-28 02:45:15,866 INFO L87 Difference]: Start difference. First operand 132787 states and 597163 transitions. Second operand 5 states. [2019-12-28 02:45:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:45:21,215 INFO L93 Difference]: Finished difference Result 161555 states and 717783 transitions. [2019-12-28 02:45:21,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 02:45:21,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2019-12-28 02:45:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:45:22,634 INFO L225 Difference]: With dead ends: 161555 [2019-12-28 02:45:22,634 INFO L226 Difference]: Without dead ends: 160755 [2019-12-28 02:45:22,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-28 02:45:23,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160755 states. [2019-12-28 02:45:28,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160755 to 139079. [2019-12-28 02:45:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139079 states. [2019-12-28 02:45:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139079 states to 139079 states and 623066 transitions. [2019-12-28 02:45:28,737 INFO L78 Accepts]: Start accepts. Automaton has 139079 states and 623066 transitions. Word has length 54 [2019-12-28 02:45:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:45:28,738 INFO L462 AbstractCegarLoop]: Abstraction has 139079 states and 623066 transitions. [2019-12-28 02:45:28,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 02:45:28,738 INFO L276 IsEmpty]: Start isEmpty. Operand 139079 states and 623066 transitions. [2019-12-28 02:45:28,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-12-28 02:45:28,772 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:45:28,772 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:45:28,773 INFO L410 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:45:28,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:45:28,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1620706159, now seen corresponding path program 1 times [2019-12-28 02:45:28,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:45:28,774 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295503669] [2019-12-28 02:45:28,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:45:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:45:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:45:28,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295503669] [2019-12-28 02:45:28,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:45:28,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 02:45:28,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [632284959] [2019-12-28 02:45:28,899 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:45:28,907 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:45:28,918 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 74 states and 85 transitions. [2019-12-28 02:45:28,918 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:45:28,920 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-28 02:45:28,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 02:45:28,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:45:28,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 02:45:28,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-28 02:45:28,922 INFO L87 Difference]: Start difference. First operand 139079 states and 623066 transitions. Second operand 6 states. [2019-12-28 02:45:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:45:35,737 INFO L93 Difference]: Finished difference Result 183583 states and 805092 transitions. [2019-12-28 02:45:35,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-28 02:45:35,738 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2019-12-28 02:45:35,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:45:36,313 INFO L225 Difference]: With dead ends: 183583 [2019-12-28 02:45:36,313 INFO L226 Difference]: Without dead ends: 182863 [2019-12-28 02:45:36,313 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-12-28 02:45:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182863 states. [2019-12-28 02:45:44,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182863 to 134931. [2019-12-28 02:45:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134931 states. [2019-12-28 02:45:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134931 states to 134931 states and 604575 transitions. [2019-12-28 02:45:45,406 INFO L78 Accepts]: Start accepts. Automaton has 134931 states and 604575 transitions. Word has length 61 [2019-12-28 02:45:45,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:45:45,407 INFO L462 AbstractCegarLoop]: Abstraction has 134931 states and 604575 transitions. [2019-12-28 02:45:45,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 02:45:45,407 INFO L276 IsEmpty]: Start isEmpty. Operand 134931 states and 604575 transitions. [2019-12-28 02:45:45,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-28 02:45:45,492 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:45:45,492 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:45:45,492 INFO L410 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:45:45,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:45:45,493 INFO L82 PathProgramCache]: Analyzing trace with hash 92553995, now seen corresponding path program 1 times [2019-12-28 02:45:45,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:45:45,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008761692] [2019-12-28 02:45:45,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:45:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:45:45,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:45:45,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008761692] [2019-12-28 02:45:45,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:45:45,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 02:45:45,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2048496093] [2019-12-28 02:45:45,595 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:45:45,605 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:45:45,619 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 69 states and 68 transitions. [2019-12-28 02:45:45,619 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:45:45,619 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 02:45:45,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 02:45:45,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:45:45,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 02:45:45,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-28 02:45:45,621 INFO L87 Difference]: Start difference. First operand 134931 states and 604575 transitions. Second operand 6 states. [2019-12-28 02:45:48,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:45:48,512 INFO L93 Difference]: Finished difference Result 185115 states and 812729 transitions. [2019-12-28 02:45:48,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-28 02:45:48,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2019-12-28 02:45:48,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:45:49,116 INFO L225 Difference]: With dead ends: 185115 [2019-12-28 02:45:49,116 INFO L226 Difference]: Without dead ends: 183915 [2019-12-28 02:45:49,117 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-28 02:45:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183915 states. [2019-12-28 02:45:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183915 to 160431. [2019-12-28 02:45:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160431 states. [2019-12-28 02:46:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160431 states to 160431 states and 711516 transitions. [2019-12-28 02:46:00,808 INFO L78 Accepts]: Start accepts. Automaton has 160431 states and 711516 transitions. Word has length 68 [2019-12-28 02:46:00,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:46:00,809 INFO L462 AbstractCegarLoop]: Abstraction has 160431 states and 711516 transitions. [2019-12-28 02:46:00,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 02:46:00,809 INFO L276 IsEmpty]: Start isEmpty. Operand 160431 states and 711516 transitions. [2019-12-28 02:46:00,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-12-28 02:46:00,914 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:46:00,914 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:46:00,914 INFO L410 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:46:00,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:46:00,914 INFO L82 PathProgramCache]: Analyzing trace with hash -155089124, now seen corresponding path program 1 times [2019-12-28 02:46:00,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:46:00,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936518543] [2019-12-28 02:46:00,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:46:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:46:00,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:46:00,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936518543] [2019-12-28 02:46:00,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:46:00,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-28 02:46:00,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1104876991] [2019-12-28 02:46:00,982 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:46:00,993 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:46:01,007 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 71 states and 70 transitions. [2019-12-28 02:46:01,007 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:46:01,007 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 02:46:01,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-28 02:46:01,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:46:01,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-28 02:46:01,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-28 02:46:01,009 INFO L87 Difference]: Start difference. First operand 160431 states and 711516 transitions. Second operand 3 states. [2019-12-28 02:46:08,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:46:08,177 INFO L93 Difference]: Finished difference Result 202239 states and 884076 transitions. [2019-12-28 02:46:08,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-28 02:46:08,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-12-28 02:46:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:46:08,888 INFO L225 Difference]: With dead ends: 202239 [2019-12-28 02:46:08,889 INFO L226 Difference]: Without dead ends: 202239 [2019-12-28 02:46:08,889 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-28 02:46:09,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202239 states. [2019-12-28 02:46:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202239 to 176151. [2019-12-28 02:46:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176151 states. [2019-12-28 02:46:14,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176151 states to 176151 states and 777058 transitions. [2019-12-28 02:46:14,863 INFO L78 Accepts]: Start accepts. Automaton has 176151 states and 777058 transitions. Word has length 70 [2019-12-28 02:46:14,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:46:14,864 INFO L462 AbstractCegarLoop]: Abstraction has 176151 states and 777058 transitions. [2019-12-28 02:46:14,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-28 02:46:14,864 INFO L276 IsEmpty]: Start isEmpty. Operand 176151 states and 777058 transitions. [2019-12-28 02:46:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-12-28 02:46:15,020 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:46:15,020 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:46:15,021 INFO L410 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:46:15,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:46:15,021 INFO L82 PathProgramCache]: Analyzing trace with hash -915433476, now seen corresponding path program 1 times [2019-12-28 02:46:15,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:46:15,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647413478] [2019-12-28 02:46:15,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:46:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:46:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:46:15,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647413478] [2019-12-28 02:46:15,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:46:15,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 02:46:15,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [887934866] [2019-12-28 02:46:15,115 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:46:15,127 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:46:15,143 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 75 states and 74 transitions. [2019-12-28 02:46:15,143 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:46:15,143 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 02:46:15,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 02:46:15,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:46:15,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 02:46:15,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 02:46:15,144 INFO L87 Difference]: Start difference. First operand 176151 states and 777058 transitions. Second operand 7 states. [2019-12-28 02:46:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:46:22,279 INFO L93 Difference]: Finished difference Result 224103 states and 971734 transitions. [2019-12-28 02:46:22,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-28 02:46:22,280 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2019-12-28 02:46:22,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:46:23,804 INFO L225 Difference]: With dead ends: 224103 [2019-12-28 02:46:23,804 INFO L226 Difference]: Without dead ends: 222903 [2019-12-28 02:46:23,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2019-12-28 02:46:24,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222903 states. [2019-12-28 02:46:32,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222903 to 180727. [2019-12-28 02:46:32,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180727 states. [2019-12-28 02:46:34,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180727 states to 180727 states and 796150 transitions. [2019-12-28 02:46:34,547 INFO L78 Accepts]: Start accepts. Automaton has 180727 states and 796150 transitions. Word has length 74 [2019-12-28 02:46:34,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:46:34,548 INFO L462 AbstractCegarLoop]: Abstraction has 180727 states and 796150 transitions. [2019-12-28 02:46:34,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 02:46:34,548 INFO L276 IsEmpty]: Start isEmpty. Operand 180727 states and 796150 transitions. [2019-12-28 02:46:34,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-28 02:46:34,718 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:46:34,718 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:46:34,718 INFO L410 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:46:34,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:46:34,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1650864197, now seen corresponding path program 1 times [2019-12-28 02:46:34,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:46:34,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931339380] [2019-12-28 02:46:34,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:46:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:46:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:46:34,806 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931339380] [2019-12-28 02:46:34,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:46:34,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 02:46:34,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1048891448] [2019-12-28 02:46:34,807 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:46:34,823 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:46:34,859 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 102 states and 118 transitions. [2019-12-28 02:46:34,859 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:46:34,861 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-28 02:46:34,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 02:46:34,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:46:34,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 02:46:34,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 02:46:34,862 INFO L87 Difference]: Start difference. First operand 180727 states and 796150 transitions. Second operand 4 states. [2019-12-28 02:46:38,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:46:38,017 INFO L93 Difference]: Finished difference Result 277855 states and 1217220 transitions. [2019-12-28 02:46:38,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 02:46:38,018 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2019-12-28 02:46:38,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:46:47,843 INFO L225 Difference]: With dead ends: 277855 [2019-12-28 02:46:47,843 INFO L226 Difference]: Without dead ends: 277855 [2019-12-28 02:46:47,843 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 02:46:49,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277855 states. [2019-12-28 02:46:53,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277855 to 214687. [2019-12-28 02:46:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214687 states. [2019-12-28 02:46:55,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214687 states to 214687 states and 943480 transitions. [2019-12-28 02:46:55,671 INFO L78 Accepts]: Start accepts. Automaton has 214687 states and 943480 transitions. Word has length 75 [2019-12-28 02:46:55,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:46:55,671 INFO L462 AbstractCegarLoop]: Abstraction has 214687 states and 943480 transitions. [2019-12-28 02:46:55,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 02:46:55,671 INFO L276 IsEmpty]: Start isEmpty. Operand 214687 states and 943480 transitions. [2019-12-28 02:46:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-28 02:46:55,906 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:46:55,907 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:46:55,907 INFO L410 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:46:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:46:55,907 INFO L82 PathProgramCache]: Analyzing trace with hash -162790407, now seen corresponding path program 1 times [2019-12-28 02:46:55,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:46:55,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522634868] [2019-12-28 02:46:55,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:46:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:46:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:46:56,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522634868] [2019-12-28 02:46:56,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:46:56,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 02:46:56,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2110589177] [2019-12-28 02:46:56,024 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:46:56,038 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:46:56,061 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 83 states and 89 transitions. [2019-12-28 02:46:56,062 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:46:56,062 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 02:46:56,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 02:46:56,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:46:56,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 02:46:56,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 02:46:56,064 INFO L87 Difference]: Start difference. First operand 214687 states and 943480 transitions. Second operand 7 states. [2019-12-28 02:47:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:47:05,318 INFO L93 Difference]: Finished difference Result 255731 states and 1108635 transitions. [2019-12-28 02:47:05,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-28 02:47:05,319 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2019-12-28 02:47:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:47:06,212 INFO L225 Difference]: With dead ends: 255731 [2019-12-28 02:47:06,212 INFO L226 Difference]: Without dead ends: 254731 [2019-12-28 02:47:06,213 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2019-12-28 02:47:07,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254731 states. [2019-12-28 02:47:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254731 to 217763. [2019-12-28 02:47:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217763 states. [2019-12-28 02:47:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217763 states to 217763 states and 955907 transitions. [2019-12-28 02:47:13,769 INFO L78 Accepts]: Start accepts. Automaton has 217763 states and 955907 transitions. Word has length 75 [2019-12-28 02:47:13,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 02:47:13,770 INFO L462 AbstractCegarLoop]: Abstraction has 217763 states and 955907 transitions. [2019-12-28 02:47:13,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 02:47:13,770 INFO L276 IsEmpty]: Start isEmpty. Operand 217763 states and 955907 transitions. [2019-12-28 02:47:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-28 02:47:14,037 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 02:47:14,037 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 02:47:14,037 INFO L410 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 02:47:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 02:47:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1991738286, now seen corresponding path program 1 times [2019-12-28 02:47:14,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 02:47:14,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621474846] [2019-12-28 02:47:14,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 02:47:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 02:47:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 02:47:14,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621474846] [2019-12-28 02:47:14,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 02:47:14,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 02:47:14,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [907945872] [2019-12-28 02:47:14,164 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 02:47:14,176 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 02:47:14,196 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 80 states and 81 transitions. [2019-12-28 02:47:14,196 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 02:47:14,196 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 02:47:14,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 02:47:14,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 02:47:14,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 02:47:14,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-28 02:47:14,197 INFO L87 Difference]: Start difference. First operand 217763 states and 955907 transitions. Second operand 6 states. [2019-12-28 02:47:22,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 02:47:22,893 INFO L93 Difference]: Finished difference Result 303799 states and 1328162 transitions. [2019-12-28 02:47:22,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 02:47:22,893 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2019-12-28 02:47:22,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 02:47:23,949 INFO L225 Difference]: With dead ends: 303799 [2019-12-28 02:47:23,949 INFO L226 Difference]: Without dead ends: 301223 [2019-12-28 02:47:23,950 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-28 02:47:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301223 states. [2019-12-28 02:47:37,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301223 to 261363. [2019-12-28 02:47:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261363 states. Received shutdown request... [2019-12-28 02:47:39,775 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-28 02:47:39,780 WARN L227 ceAbstractionStarter]: Timeout [2019-12-28 02:47:39,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 02:47:39 BasicIcfg [2019-12-28 02:47:39,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 02:47:39,783 INFO L168 Benchmark]: Toolchain (without parser) took 182469.06 ms. Allocated memory was 137.4 MB in the beginning and 5.3 GB in the end (delta: 5.1 GB). Free memory was 100.7 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2019-12-28 02:47:39,783 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-28 02:47:39,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.69 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 100.3 MB in the beginning and 157.3 MB in the end (delta: -57.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-12-28 02:47:39,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.71 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 154.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-12-28 02:47:39,786 INFO L168 Benchmark]: Boogie Preprocessor took 39.88 ms. Allocated memory is still 203.9 MB. Free memory was 154.5 MB in the beginning and 152.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 02:47:39,786 INFO L168 Benchmark]: RCFGBuilder took 788.33 ms. Allocated memory is still 203.9 MB. Free memory was 152.5 MB in the beginning and 105.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2019-12-28 02:47:39,787 INFO L168 Benchmark]: TraceAbstraction took 180772.49 ms. Allocated memory was 203.9 MB in the beginning and 5.3 GB in the end (delta: 5.1 GB). Free memory was 104.3 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2019-12-28 02:47:39,791 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.69 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 100.3 MB in the beginning and 157.3 MB in the end (delta: -57.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 81.71 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 154.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.88 ms. Allocated memory is still 203.9 MB. Free memory was 154.5 MB in the beginning and 152.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 788.33 ms. Allocated memory is still 203.9 MB. Free memory was 152.5 MB in the beginning and 105.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 180772.49 ms. Allocated memory was 203.9 MB in the beginning and 5.3 GB in the end (delta: 5.1 GB). Free memory was 104.3 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4). Cancelled while ReachableStatesComputation was computing reachable states (221360 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 4]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4). Cancelled while ReachableStatesComputation was computing reachable states (221360 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 155 locations, 2 error locations. Result: TIMEOUT, OverallTime: 180.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 75.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3354 SDtfs, 4329 SDslu, 7950 SDs, 0 SdLazy, 3115 SolverSat, 242 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217763occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 89.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 267636 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 653 NumberOfCodeBlocks, 653 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 643 ConstructedInterpolants, 0 QuantifiedInterpolants, 87805 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown