/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:31:51,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:31:51,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:31:51,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:31:51,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:31:51,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:31:51,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:31:51,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:31:51,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:31:51,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:31:51,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:31:51,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:31:51,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:31:51,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:31:51,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:31:51,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:31:51,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:31:51,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:31:51,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:31:51,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:31:51,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:31:51,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:31:51,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:31:51,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:31:51,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:31:51,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:31:51,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:31:51,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:31:51,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:31:51,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:31:51,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:31:51,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:31:51,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:31:51,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:31:51,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:31:51,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:31:51,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:31:51,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:31:51,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:31:51,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:31:51,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:31:51,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:31:51,630 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:31:51,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:31:51,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:31:51,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:31:51,632 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:31:51,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:31:51,632 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:31:51,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:31:51,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:31:51,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:31:51,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:31:51,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:31:51,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:31:51,634 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:31:51,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:31:51,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:31:51,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:31:51,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:31:51,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:31:51,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:31:51,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:31:51,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:31:51,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:31:51,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:31:51,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:31:51,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:31:51,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:31:51,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:31:51,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:31:51,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:31:52,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:31:52,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:31:52,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:31:52,100 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:31:52,100 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:31:52,102 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2020-09-24 23:31:52,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f13a882b/7e5cbf4595ba4005be033ab7067d616b/FLAGabb3d9b91 [2020-09-24 23:31:52,806 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:31:52,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2020-09-24 23:31:52,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f13a882b/7e5cbf4595ba4005be033ab7067d616b/FLAGabb3d9b91 [2020-09-24 23:31:53,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f13a882b/7e5cbf4595ba4005be033ab7067d616b [2020-09-24 23:31:53,086 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:31:53,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:31:53,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:31:53,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:31:53,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:31:53,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53, skipping insertion in model container [2020-09-24 23:31:53,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:31:53,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:31:53,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:31:53,560 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:31:53,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:31:53,806 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:31:53,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53 WrapperNode [2020-09-24 23:31:53,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:31:53,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:31:53,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:31:53,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:31:53,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (1/1) ... [2020-09-24 23:31:53,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:31:53,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:31:53,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:31:53,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:31:53,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:31:53,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:31:53,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:31:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:31:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:31:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:31:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:31:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:31:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:31:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 23:31:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:31:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:31:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:31:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:31:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:31:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:31:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:31:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:31:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:31:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:31:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:31:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:31:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:31:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:31:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:31:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:31:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:31:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:31:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:31:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:31:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:31:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:31:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:31:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:31:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:31:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:31:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:31:54,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:31:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:31:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:31:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:31:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:31:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:31:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:31:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:31:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:31:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:31:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:31:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:31:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:31:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:31:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:31:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:31:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:31:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:31:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:31:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:31:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:31:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 23:31:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:31:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:31:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:31:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:31:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:31:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:31:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:31:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:31:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:31:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:31:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:31:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:31:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:31:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:31:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:31:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:31:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:31:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:31:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:31:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:31:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:31:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:31:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:31:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:31:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:31:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:31:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:31:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:31:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:31:54,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:31:55,139 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:31:55,140 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:31:55,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:31:55 BoogieIcfgContainer [2020-09-24 23:31:55,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:31:55,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:31:55,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:31:55,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:31:55,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:31:53" (1/3) ... [2020-09-24 23:31:55,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfadc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:31:55, skipping insertion in model container [2020-09-24 23:31:55,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:31:53" (2/3) ... [2020-09-24 23:31:55,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfadc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:31:55, skipping insertion in model container [2020-09-24 23:31:55,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:31:55" (3/3) ... [2020-09-24 23:31:55,160 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product13.cil.c [2020-09-24 23:31:55,172 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:31:55,183 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:31:55,205 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:31:55,235 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:31:55,236 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:31:55,236 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:31:55,236 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:31:55,236 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:31:55,236 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:31:55,237 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:31:55,237 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:31:55,266 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2020-09-24 23:31:55,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:31:55,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:55,284 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:31:55,284 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:55,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:55,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1208913695, now seen corresponding path program 1 times [2020-09-24 23:31:55,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:55,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927921333] [2020-09-24 23:31:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:55,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:56,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:56,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:57,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:58,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:00,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:00,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:32:00,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:32:00,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 23:32:00,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:00,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:00,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:32:00,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:32:00,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:32:01,184 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:32:01,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:32:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:01,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:01,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:01,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:32:01,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:01,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-24 23:32:01,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:32:01,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:01,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:32:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:01,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:01,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:01,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:01,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:32:01,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:01,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:01,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:32:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:01,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:01,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:01,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:01,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:01,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:32:01,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:01,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:01,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:32:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:01,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:01,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:01,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:01,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:01,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:32:01,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:01,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:01,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:01,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:01,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:01,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:32:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:01,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:01,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:01,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:01,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:01,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:32:01,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:01,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:01,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:01,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:32:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:01,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:01,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:32:01,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:01,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:32:01,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:01,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:01,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:01,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:32:01,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:01,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:32:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:01,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:01,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:01,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:01,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:01,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:32:01,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:32:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:32:01,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:32:01,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:01,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:32:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:01,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:01,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:01,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:01,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:01,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:32:01,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:01,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:32:01,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:32:01,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:32:01,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:32:01,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927921333] [2020-09-24 23:32:01,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:32:01,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:32:01,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210481819] [2020-09-24 23:32:01,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:32:01,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:32:01,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:32:01,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:32:01,834 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 5 states. [2020-09-24 23:32:02,544 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:32:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:32:03,489 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-09-24 23:32:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:32:03,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:32:03,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:32:03,511 INFO L225 Difference]: With dead ends: 404 [2020-09-24 23:32:03,511 INFO L226 Difference]: Without dead ends: 267 [2020-09-24 23:32:03,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:32:03,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-24 23:32:03,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-24 23:32:03,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-24 23:32:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2020-09-24 23:32:03,651 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 148 [2020-09-24 23:32:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:32:03,652 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2020-09-24 23:32:03,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:32:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2020-09-24 23:32:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:32:03,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:32:03,658 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:32:03,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:32:03,659 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:32:03,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:32:03,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1041215585, now seen corresponding path program 1 times [2020-09-24 23:32:03,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:32:03,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120285715] [2020-09-24 23:32:03,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:32:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:03,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:04,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:04,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:04,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:05,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:08,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:08,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 23:32:08,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:32:08,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 23:32:08,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:08,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:32:08,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:32:08,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 23:32:08,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:09,117 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:32:09,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:32:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:32:09,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-24 23:32:09,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:32:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:09,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:32:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:09,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:32:09,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:09,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:09,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:09,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:32:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:09,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:32:09,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:09,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:09,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:32:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:09,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:32:09,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:09,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:09,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:32:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:09,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:32:09,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:09,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:32:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:32:09,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:32:09,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:09,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:32:09,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:09,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 23:32:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:32:09,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:32:09,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:09,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:32:09,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:09,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:32:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:09,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:32:09,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:32:09,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:32:09,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 23:32:09,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:32:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:09,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:32:09,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:32:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:09,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:09,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:09,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:32:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:09,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:09,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:09,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:09,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:09,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:32:09,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:32:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:32:09,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:32:09,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:32:09,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120285715] [2020-09-24 23:32:09,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:32:09,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:32:09,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226771851] [2020-09-24 23:32:09,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:32:09,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:32:09,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:32:09,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:32:09,720 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand 10 states. [2020-09-24 23:32:10,377 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:32:11,408 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:11,768 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:32:12,404 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:32:12,709 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:13,335 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:13,703 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:32:14,013 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:14,586 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:15,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:32:15,268 INFO L93 Difference]: Finished difference Result 545 states and 669 transitions. [2020-09-24 23:32:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:32:15,268 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-09-24 23:32:15,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:32:15,275 INFO L225 Difference]: With dead ends: 545 [2020-09-24 23:32:15,275 INFO L226 Difference]: Without dead ends: 420 [2020-09-24 23:32:15,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:32:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-24 23:32:15,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 301. [2020-09-24 23:32:15,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-24 23:32:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-24 23:32:15,342 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 157 [2020-09-24 23:32:15,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:32:15,342 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-24 23:32:15,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:32:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-24 23:32:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 23:32:15,348 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:32:15,348 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:32:15,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:32:15,348 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:32:15,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:32:15,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1571453161, now seen corresponding path program 1 times [2020-09-24 23:32:15,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:32:15,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105964540] [2020-09-24 23:32:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:32:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:15,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:15,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:16,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:18,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:20,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:20,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 23:32:20,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:32:20,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 23:32:20,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:32:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:32:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 23:32:20,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:20,773 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:32:20,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:32:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:20,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:32:21,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-24 23:32:21,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:32:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:21,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:32:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:21,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:32:21,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:21,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:21,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:32:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:21,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:32:21,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:21,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:21,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:32:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:21,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:32:21,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:21,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:21,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:32:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:21,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:32:21,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:21,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:21,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:32:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:32:21,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:32:21,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:32:21,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:21,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:32:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:32:21,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:32:21,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:32:21,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:32:21,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:32:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:32:21,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:32:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:32:21,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:32:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:32:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:32:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:21,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:32:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:32:21,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:32:21,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:32:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:21,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 23:32:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:21,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:32:21,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:32:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:21,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 23:32:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:32:21,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:32:21,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:32:21,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:32:21,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:32:21,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:32:21,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:32:21,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:32:21,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:32:21,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:32:21,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:32:21,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:32:21,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105964540] [2020-09-24 23:32:21,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:32:21,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:32:21,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781420806] [2020-09-24 23:32:21,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:32:21,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:32:21,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:32:21,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:32:21,393 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 11 states. [2020-09-24 23:32:21,958 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:32:23,413 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 23:32:23,997 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 23:32:24,343 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:24,647 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:24,939 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:25,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:32:25,290 INFO L93 Difference]: Finished difference Result 507 states and 592 transitions. [2020-09-24 23:32:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:32:25,291 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 171 [2020-09-24 23:32:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:32:25,293 INFO L225 Difference]: With dead ends: 507 [2020-09-24 23:32:25,293 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 23:32:25,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:32:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 23:32:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 23:32:25,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 23:32:25,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 23:32:25,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2020-09-24 23:32:25,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:32:25,299 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 23:32:25,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:32:25,299 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 23:32:25,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 23:32:25,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:32:25,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 23:32:25,513 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:25,692 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:25,872 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:26,051 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:26,223 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:26,522 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-24 23:32:26,672 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:32:26,839 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:27,004 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:27,159 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:27,317 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:27,481 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:27,638 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:27,792 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:27,964 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:28,121 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:28,278 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:28,432 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:28,604 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:28,876 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 23:32:29,147 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 23:32:29,489 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 23:32:29,592 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 12 [2020-09-24 23:32:29,863 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 23:32:30,208 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 23:32:30,551 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 23:32:30,823 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 23:32:31,365 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 23:32:31,522 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:31,686 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:31,849 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:32,002 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:32,165 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:32,332 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:32,495 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:32,658 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:32,820 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:33,079 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 9 [2020-09-24 23:32:33,242 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:33,404 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:33,567 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:33,722 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:33,894 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:34,048 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:34,228 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:34,389 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:34,552 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:34,709 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:34,964 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-24 23:32:35,236 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 9 [2020-09-24 23:32:35,389 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:35,554 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:35,716 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:35,882 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:36,043 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:36,205 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:36,373 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:36,528 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:36,811 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 23:32:37,111 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 23:32:37,517 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-24 23:32:37,895 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 23:32:38,302 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-24 23:32:38,709 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-24 23:32:38,991 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 23:32:39,592 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-24 23:32:39,755 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:39,910 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:40,073 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:40,233 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:40,390 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:40,542 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:40,700 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:40,859 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:41,017 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:41,170 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:41,327 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:32:41,480 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:41,636 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:32:41,799 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:32:42,049 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 14 [2020-09-24 23:32:42,483 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 11 [2020-09-24 23:32:42,683 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 23:32:42,957 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 23:32:43,307 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:32:43,827 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-24 23:32:44,297 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-24 23:32:44,703 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 12 [2020-09-24 23:32:44,950 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 23:32:45,180 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 23:32:45,614 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 12 [2020-09-24 23:32:46,021 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 11 [2020-09-24 23:32:46,294 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 23:32:46,532 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-24 23:32:46,809 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 1 [2020-09-24 23:32:47,043 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 17 [2020-09-24 23:32:47,282 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26