/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=LOWLEXORDER --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 21:17:47,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:17:47,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:17:47,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:17:47,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:17:47,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:17:47,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:17:47,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:17:47,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:17:47,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:17:47,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:17:47,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:17:47,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:17:47,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:17:47,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:17:47,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:17:47,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:17:47,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:17:47,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:17:47,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:17:47,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:17:47,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:17:47,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:17:47,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:17:47,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:17:47,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:17:47,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:17:47,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:17:47,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:17:47,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:17:47,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:17:47,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:17:47,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:17:47,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:17:47,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:17:47,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:17:47,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:17:47,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:17:47,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:17:47,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:17:47,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:17:47,671 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 21:17:47,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:17:47,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:17:47,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:17:47,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:17:47,729 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:17:47,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:17:47,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:17:47,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:17:47,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:17:47,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:17:47,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:17:47,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:17:47,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:17:47,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:17:47,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:17:47,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:17:47,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:17:47,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:17:47,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:17:47,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:17:47,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:17:47,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:17:47,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:17:47,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:17:47,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:17:47,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:17:47,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:17:47,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:17:47,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:17:47,736 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:17:48,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:17:48,247 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:17:48,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:17:48,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:17:48,254 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:17:48,255 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2020-09-24 21:17:48,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a450de9d8/68742217084c4cf3b1a566d81f72dc28/FLAG1404609c8 [2020-09-24 21:17:48,899 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:17:48,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2020-09-24 21:17:48,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a450de9d8/68742217084c4cf3b1a566d81f72dc28/FLAG1404609c8 [2020-09-24 21:17:49,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a450de9d8/68742217084c4cf3b1a566d81f72dc28 [2020-09-24 21:17:49,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:17:49,185 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:17:49,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:17:49,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:17:49,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:17:49,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:49,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49, skipping insertion in model container [2020-09-24 21:17:49,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:49,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:17:49,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:17:49,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:17:49,690 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:17:49,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:17:49,942 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:17:49,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49 WrapperNode [2020-09-24 21:17:49,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:17:49,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:17:49,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:17:49,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:17:49,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:49,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:49,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:49,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:50,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:50,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:50,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (1/1) ... [2020-09-24 21:17:50,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:17:50,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:17:50,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:17:50,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:17:50,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (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 21:17:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:17:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:17:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:17:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:17:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:17:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:17:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:17:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:17:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 21:17:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:17:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:17:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:17:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:17:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:17:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:17:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:17:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:17:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:17:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:17:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:17:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:17:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:17:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:17:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:17:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:17:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:17:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:17:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:17:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:17:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:17:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:17:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:17:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:17:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:17:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:17:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:17:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:17:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:17:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:17:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:17:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:17:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:17:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:17:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:17:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:17:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:17:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:17:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:17:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:17:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:17:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:17:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:17:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:17:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:17:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:17:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:17:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:17:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 21:17:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:17:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:17:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:17:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:17:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:17:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:17:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:17:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:17:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:17:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:17:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:17:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:17:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:17:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:17:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:17:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:17:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:17:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:17:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:17:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:17:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:17:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:17:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:17:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:17:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:17:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:17:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:17:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:17:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:17:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:17:51,410 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:17:51,411 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:17:51,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:17:51 BoogieIcfgContainer [2020-09-24 21:17:51,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:17:51,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:17:51,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:17:51,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:17:51,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:17:49" (1/3) ... [2020-09-24 21:17:51,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b91e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:17:51, skipping insertion in model container [2020-09-24 21:17:51,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:17:49" (2/3) ... [2020-09-24 21:17:51,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b91e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:17:51, skipping insertion in model container [2020-09-24 21:17:51,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:17:51" (3/3) ... [2020-09-24 21:17:51,428 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product13.cil.c [2020-09-24 21:17:51,441 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:17:51,454 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:17:51,479 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:17:51,514 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:17:51,515 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:17:51,515 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:17:51,515 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:17:51,515 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:17:51,515 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:17:51,516 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:17:51,516 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:17:51,546 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2020-09-24 21:17:51,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:17:51,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:17:51,567 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 21:17:51,568 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:17:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:17:51,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1208913695, now seen corresponding path program 1 times [2020-09-24 21:17:51,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:17:51,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863862510] [2020-09-24 21:17:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:17:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:52,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:52,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:52,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:54,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:54,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:56,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:56,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:17:56,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:17:56,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 21:17:56,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:17:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:17:56,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:17:57,462 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:17:57,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:17:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:57,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:57,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:57,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:17:57,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:57,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-24 21:17:57,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:17:57,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:17:58,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:17:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:58,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:58,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:58,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:58,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:17:58,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:58,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:58,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:58,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:58,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:58,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:17:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:58,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:58,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:58,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:58,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:58,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:58,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:58,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:58,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:58,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:58,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:58,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:17:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:58,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:58,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:58,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:58,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:58,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:17:58,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:58,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:17:58,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:58,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:17:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:58,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:58,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:17:58,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:17:58,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:17:58,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:17:58,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:17:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:58,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:58,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:58,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:17:58,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:58,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:17:58,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:17:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:17:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:17:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:58,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:17:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:58,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:58,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:58,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:58,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:58,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:58,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:58,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:58,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:58,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:58,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:58,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:17:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:17:58,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:17:58,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:17:58,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:17:58,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:17:58,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:17:58,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:17:58,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:17:58,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:17:58,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:17:58,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:17:58,235 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 21:17:58,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863862510] [2020-09-24 21:17:58,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:17:58,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:17:58,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272971651] [2020-09-24 21:17:58,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:17:58,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:17:58,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:17:58,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:17:58,271 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 5 states. [2020-09-24 21:17:58,943 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:17:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:17:59,865 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-09-24 21:17:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:17:59,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 21:17:59,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:17:59,888 INFO L225 Difference]: With dead ends: 404 [2020-09-24 21:17:59,888 INFO L226 Difference]: Without dead ends: 267 [2020-09-24 21:17:59,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:17:59,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-24 21:17:59,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-24 21:17:59,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-24 21:17:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2020-09-24 21:18:00,003 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 148 [2020-09-24 21:18:00,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:18:00,005 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2020-09-24 21:18:00,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:18:00,005 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2020-09-24 21:18:00,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 21:18:00,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:18:00,012 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 21:18:00,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:18:00,013 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:18:00,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:18:00,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1041215585, now seen corresponding path program 1 times [2020-09-24 21:18:00,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:18:00,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932793475] [2020-09-24 21:18:00,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:18:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:00,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:01,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:02,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:18:05,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:18:05,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 21:18:05,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:18:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:18:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 21:18:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:05,529 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:05,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:18:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:18:05,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 21:18:05,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:05,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:18:05,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:05,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:18:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:05,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:05,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:05,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:05,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:05,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:18:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:05,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:05,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:05,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:05,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:05,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:18:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:05,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:18:05,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:05,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:05,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:18:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:05,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:18:05,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:05,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:05,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:18:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:18:05,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:05,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:05,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:18:05,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:05,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 21:18:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:18:05,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:05,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 21:18:05,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:05,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:18:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:05,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:05,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:18:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:18:05,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:05,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:18:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:05,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:05,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:05,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:05,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:18:05,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:18:05,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:05,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:05,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:06,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:18:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:06,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:06,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:06,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:06,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:06,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:06,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:06,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:18:06,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:18:06,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:18:06,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:06,080 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 21:18:06,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932793475] [2020-09-24 21:18:06,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:18:06,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:18:06,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822715143] [2020-09-24 21:18:06,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:18:06,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:18:06,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:18:06,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:18:06,084 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand 10 states. [2020-09-24 21:18:06,692 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:18:07,723 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:08,051 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:18:08,683 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:18:09,014 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:09,638 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:09,977 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:18:10,297 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:10,876 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:11,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:18:11,523 INFO L93 Difference]: Finished difference Result 545 states and 669 transitions. [2020-09-24 21:18:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 21:18:11,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-09-24 21:18:11,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:18:11,534 INFO L225 Difference]: With dead ends: 545 [2020-09-24 21:18:11,535 INFO L226 Difference]: Without dead ends: 420 [2020-09-24 21:18:11,538 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 21:18:11,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-24 21:18:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 301. [2020-09-24 21:18:11,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-24 21:18:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-09-24 21:18:11,621 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 157 [2020-09-24 21:18:11,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:18:11,621 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-09-24 21:18:11,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:18:11,622 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-09-24 21:18:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 21:18:11,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:18:11,635 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 21:18:11,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:18:11,635 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:18:11,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:18:11,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1571453161, now seen corresponding path program 1 times [2020-09-24 21:18:11,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:18:11,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930147478] [2020-09-24 21:18:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:18:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:11,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:11,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:12,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:14,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:16,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:16,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 21:18:16,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:18:16,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 21:18:16,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:18:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:18:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 21:18:16,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,083 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:17,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:18:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:18:17,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-24 21:18:17,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:18:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:18:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:17,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:17,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:17,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:18:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:17,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:17,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:17,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:18:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:17,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:18:17,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:17,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:18:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:17,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:17,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:17,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:18:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:18:17,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:17,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:18:17,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:18:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:18:17,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:18:17,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:18:17,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:18:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:18:17,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:18:17,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:18:17,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:18:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:18:17,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:18:17,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:18:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:17,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:17,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:17,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:17,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 21:18:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:17,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:18:17,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:17,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 21:18:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:17,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:17,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:17,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:17,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:18:17,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:18:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:17,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:17,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:17,515 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 21:18:17,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930147478] [2020-09-24 21:18:17,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:18:17,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:18:17,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950067976] [2020-09-24 21:18:17,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:18:17,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:18:17,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:18:17,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:18:17,519 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 11 states. [2020-09-24 21:18:18,169 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:18:19,488 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:19,795 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:20,147 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:20,451 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:20,732 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:21,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:18:21,072 INFO L93 Difference]: Finished difference Result 507 states and 592 transitions. [2020-09-24 21:18:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:18:21,073 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 171 [2020-09-24 21:18:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:18:21,074 INFO L225 Difference]: With dead ends: 507 [2020-09-24 21:18:21,074 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:18:21,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:18:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:18:21,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:18:21,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:18:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:18:21,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2020-09-24 21:18:21,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:18:21,084 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:18:21,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:18:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:18:21,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:18:21,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:18:21,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:18:21,321 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:21,488 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:21,660 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:21,836 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:22,022 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:22,337 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-24 21:18:22,488 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:22,653 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:22,819 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:22,980 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:23,144 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:23,307 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:23,462 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:23,618 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:23,781 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:23,935 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:24,092 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:24,256 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:24,421 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:24,699 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 21:18:24,976 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 21:18:25,326 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 21:18:25,695 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 21:18:26,037 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 21:18:26,378 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 21:18:26,651 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 21:18:26,993 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-24 21:18:27,354 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:27,516 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:27,678 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:27,831 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:27,993 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:28,157 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:28,319 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:28,482 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:28,645 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:28,903 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 9 [2020-09-24 21:18:29,065 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:29,227 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:29,389 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:29,542 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:29,717 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:29,872 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:30,059 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:30,218 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:30,380 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:30,537 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:30,796 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-24 21:18:31,068 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 9 [2020-09-24 21:18:31,221 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:31,385 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:31,547 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:31,716 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:31,878 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:32,039 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:32,205 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:32,359 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:32,642 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 21:18:32,925 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 21:18:33,343 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-24 21:18:33,721 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 21:18:34,128 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-24 21:18:34,534 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-24 21:18:34,815 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 21:18:35,221 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-24 21:18:35,579 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:35,734 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:35,897 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:36,056 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:36,213 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:36,366 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:36,524 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:36,682 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:36,841 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:36,994 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:37,152 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:37,305 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:37,460 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:37,623 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:37,873 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 14 [2020-09-24 21:18:38,272 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 11 [2020-09-24 21:18:38,476 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 21:18:38,749 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 21:18:39,100 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:39,635 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-24 21:18:40,116 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-24 21:18:40,532 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 12 [2020-09-24 21:18:40,775 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26