/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_spec1_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:04:08,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:04:08,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:04:08,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:04:08,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:04:08,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:04:08,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:04:08,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:04:08,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:04:08,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:04:08,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:04:08,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:04:08,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:04:08,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:04:08,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:04:08,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:04:08,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:04:08,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:04:08,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:04:08,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:04:08,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:04:08,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:04:08,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:04:08,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:04:08,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:04:08,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:04:08,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:04:08,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:04:08,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:04:08,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:04:08,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:04:08,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:04:08,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:04:08,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:04:08,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:04:08,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:04:08,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:04:08,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:04:08,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:04:08,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:04:08,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:04:08,621 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 [2020-09-25 13:04:08,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:04:08,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:04:08,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:04:08,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:04:08,651 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:04:08,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:04:08,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:04:08,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:04:08,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:04:08,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:04:08,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:04:08,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:04:08,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:04:08,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:04:08,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:04:08,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:04:08,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:04:08,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:04:08,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:04:08,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:04:08,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:04:08,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:04:08,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:04:08,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:04:08,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:04:08,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:04:08,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:04:08,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:04:08,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:04:08,656 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:04:09,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:04:09,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:04:09,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:04:09,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:04:09,156 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:04:09,157 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product18.cil.c [2020-09-25 13:04:09,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43915c1d7/45e4fe6cceae4cd78f710a00462bb82c/FLAGd52aa73cf [2020-09-25 13:04:09,792 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:04:09,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product18.cil.c [2020-09-25 13:04:09,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43915c1d7/45e4fe6cceae4cd78f710a00462bb82c/FLAGd52aa73cf [2020-09-25 13:04:10,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43915c1d7/45e4fe6cceae4cd78f710a00462bb82c [2020-09-25 13:04:10,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:04:10,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:04:10,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:04:10,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:04:10,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:04:10,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:10,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10, skipping insertion in model container [2020-09-25 13:04:10,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:10,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:04:10,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:04:10,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:04:10,771 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:04:10,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:04:10,945 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:04:10,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10 WrapperNode [2020-09-25 13:04:10,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:04:10,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:04:10,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:04:10,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:04:10,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:10,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:10,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:10,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:11,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:11,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:11,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (1/1) ... [2020-09-25 13:04:11,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:04:11,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:04:11,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:04:11,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:04:11,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (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 [2020-09-25 13:04:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:04:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:04:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:04:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:04:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:04:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:04:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:04:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:04:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:04:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:04:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:04:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:04:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:04:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:04:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:04:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:04:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:04:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:04:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:04:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:04:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:04:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:04:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:04:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:04:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:04:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:04:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:04:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:04:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:04:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:04:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:04:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:04:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:04:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:04:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:04:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:04:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:04:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:04:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:04:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:04:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:04:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:04:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:04:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:04:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:04:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:04:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:04:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:04:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:04:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:04:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:04:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:04:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:04:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:04:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:04:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:04:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:04:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:04:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:04:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:04:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:04:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:04:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:04:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:04:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:04:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:04:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:04:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:04:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:04:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:04:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:04:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:04:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:04:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:04:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:04:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:04:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:04:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:04:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:04:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:04:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:04:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:04:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:04:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:04:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:04:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:04:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:04:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:04:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:04:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:04:12,201 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:04:12,201 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:04:12,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:04:12 BoogieIcfgContainer [2020-09-25 13:04:12,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:04:12,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:04:12,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:04:12,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:04:12,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:04:10" (1/3) ... [2020-09-25 13:04:12,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c94a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:04:12, skipping insertion in model container [2020-09-25 13:04:12,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:04:10" (2/3) ... [2020-09-25 13:04:12,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c94a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:04:12, skipping insertion in model container [2020-09-25 13:04:12,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:04:12" (3/3) ... [2020-09-25 13:04:12,217 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2020-09-25 13:04:12,229 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:04:12,239 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:04:12,261 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:04:12,289 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:04:12,289 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:04:12,289 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:04:12,289 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:04:12,289 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:04:12,289 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:04:12,290 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:04:12,290 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:04:12,317 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 13:04:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:04:12,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:12,334 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] [2020-09-25 13:04:12,334 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:12,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:12,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1475280450, now seen corresponding path program 1 times [2020-09-25 13:04:12,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:12,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833728778] [2020-09-25 13:04:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:12,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:12,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:14,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:15,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:17,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:17,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:17,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:04:17,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:04:17,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 13:04:17,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:17,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:17,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:04:17,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:04:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 13:04:17,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:04:18,177 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:18,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:18,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:18,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:18,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:18,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:18,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 13:04:18,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:18,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:18,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:04:18,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:04:18,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:18,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:18,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:18,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:18,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:18,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:18,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:18,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:18,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:18,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:18,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:18,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:18,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:18,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:18,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:18,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:18,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:18,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:18,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:18,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:18,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:18,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:18,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:18,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:18,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:18,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:18,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:18,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:18,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:04:18,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:18,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:18,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:18,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:18,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:18,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:18,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:18,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:18,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:18,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:18,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:18,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:18,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:18,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:18,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:04:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:18,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:18,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:18,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:18,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:18,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:18,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:18,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:18,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:18,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:18,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:18,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:18,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:04:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:18,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:18,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:18,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:18,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:18,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:18,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:18,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:18,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:18,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:18,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:18,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:04:18,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833728778] [2020-09-25 13:04:18,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:18,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:04:18,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946219414] [2020-09-25 13:04:18,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:04:18,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:18,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:04:18,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:04:18,755 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 4 states. [2020-09-25 13:04:19,367 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:20,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:04:20,296 INFO L93 Difference]: Finished difference Result 422 states and 503 transitions. [2020-09-25 13:04:20,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:04:20,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:04:20,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:04:20,318 INFO L225 Difference]: With dead ends: 422 [2020-09-25 13:04:20,318 INFO L226 Difference]: Without dead ends: 268 [2020-09-25 13:04:20,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:04:20,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-25 13:04:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-25 13:04:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 13:04:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 244 transitions. [2020-09-25 13:04:20,426 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 244 transitions. Word has length 142 [2020-09-25 13:04:20,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:04:20,427 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 244 transitions. [2020-09-25 13:04:20,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:04:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 244 transitions. [2020-09-25 13:04:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:04:20,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:20,432 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] [2020-09-25 13:04:20,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:04:20,433 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:20,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:20,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1004869487, now seen corresponding path program 1 times [2020-09-25 13:04:20,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:20,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424808545] [2020-09-25 13:04:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:20,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:20,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:21,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:21,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:25,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:25,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:04:25,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:04:25,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 13:04:25,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:25,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:04:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:04:25,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 13:04:25,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:25,912 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:25,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:26,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 13:04:26,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:26,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:26,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:04:26,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:26,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:26,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:26,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:26,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:26,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:26,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:26,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:26,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:26,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:26,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:26,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:26,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:04:26,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:26,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:26,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:26,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:26,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:04:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:26,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:04:26,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:04:26,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:04:26,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:04:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:26,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:26,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:26,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:26,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:26,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:26,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:04:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:26,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:26,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:04:26,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:04:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:26,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:26,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:04:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:26,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:26,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:26,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:26,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:26,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:26,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:26,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:04:26,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:04:26,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:04:26,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:26,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:04:26,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424808545] [2020-09-25 13:04:26,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:26,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:04:26,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281806474] [2020-09-25 13:04:26,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:04:26,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:26,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:04:26,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:04:26,445 INFO L87 Difference]: Start difference. First operand 228 states and 244 transitions. Second operand 9 states. [2020-09-25 13:04:26,906 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:28,100 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:28,446 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:04:28,764 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:29,108 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:04:29,419 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:30,129 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:04:30,444 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:30,794 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:31,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:04:31,977 INFO L93 Difference]: Finished difference Result 572 states and 701 transitions. [2020-09-25 13:04:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:04:31,977 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 13:04:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:04:31,985 INFO L225 Difference]: With dead ends: 572 [2020-09-25 13:04:31,986 INFO L226 Difference]: Without dead ends: 430 [2020-09-25 13:04:31,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:04:31,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-25 13:04:32,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 321. [2020-09-25 13:04:32,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 13:04:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 349 transitions. [2020-09-25 13:04:32,061 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 349 transitions. Word has length 151 [2020-09-25 13:04:32,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:04:32,062 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 349 transitions. [2020-09-25 13:04:32,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:04:32,062 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 349 transitions. [2020-09-25 13:04:32,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 13:04:32,066 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:04:32,066 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] [2020-09-25 13:04:32,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:04:32,067 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:04:32,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:04:32,067 INFO L82 PathProgramCache]: Analyzing trace with hash 2026328297, now seen corresponding path program 1 times [2020-09-25 13:04:32,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:04:32,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956352971] [2020-09-25 13:04:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:04:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:32,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:32,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:32,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:36,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:36,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:04:36,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:04:36,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4356 [2020-09-25 13:04:36,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:36,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:04:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:04:36,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-25 13:04:36,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:04:36,821 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:36,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:04:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:04:37,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 13:04:37,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:04:37,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:04:37,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:04:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:37,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:37,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:04:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:37,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:37,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:37,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:04:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:37,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:04:37,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:04:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:37,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:37,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:04:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:04:37,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:04:37,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:04:37,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:04:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:04:37,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:04:37,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:04:37,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:04:37,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:04:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:04:37,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:04:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:04:37,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:04:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:04:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:04:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:04:37,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:04:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:04:37,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:04:37,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:04:37,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 13:04:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:37,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:04:37,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:04:37,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:37,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 13:04:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:04:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:04:37,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:04:37,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:04:37,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:04:37,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:04:37,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:04:37,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:04:37,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:04:37,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:04:37,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:04:37,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:04:37,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:04:37,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956352971] [2020-09-25 13:04:37,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:04:37,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:04:37,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280328827] [2020-09-25 13:04:37,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:04:37,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:04:37,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:04:37,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:04:37,381 INFO L87 Difference]: Start difference. First operand 321 states and 349 transitions. Second operand 11 states. [2020-09-25 13:04:37,915 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:04:39,158 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:39,498 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:04:39,834 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:40,169 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:04:40,444 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:04:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:04:40,837 INFO L93 Difference]: Finished difference Result 578 states and 685 transitions. [2020-09-25 13:04:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:04:40,838 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 169 [2020-09-25 13:04:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:04:40,840 INFO L225 Difference]: With dead ends: 578 [2020-09-25 13:04:40,840 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:04:40,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:04:40,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:04:40,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:04:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:04:40,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:04:40,846 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 169 [2020-09-25 13:04:40,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:04:40,846 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:04:40,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:04:40,847 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:04:40,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:04:40,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:04:40,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:04:41,058 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:41,242 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:41,389 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 13 [2020-09-25 13:04:41,570 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:41,744 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:41,910 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:42,075 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:42,218 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:04:42,374 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:42,532 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:42,691 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:42,850 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:43,012 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:43,167 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:43,324 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:43,475 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:43,629 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:43,768 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:04:44,112 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:04:44,457 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:04:45,069 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:04:45,402 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:04:45,745 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 13:04:45,847 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 7 [2020-09-25 13:04:46,169 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:46,492 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:46,813 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:47,133 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:47,286 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:47,439 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:47,588 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:47,736 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:47,885 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:48,039 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:48,191 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:48,345 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:48,492 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:48,640 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:48,787 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:48,934 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:49,085 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:49,237 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:49,384 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:49,538 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:49,693 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:49,846 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:49,997 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:50,145 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:50,292 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:50,445 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:50,598 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:50,705 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:04:50,858 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:51,010 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:51,158 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:51,311 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:51,460 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:51,611 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:51,764 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:51,916 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:52,072 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:52,220 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:52,368 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:52,519 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:52,672 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:52,824 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:52,976 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:53,304 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:53,631 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:54,225 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:54,552 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:54,880 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 13:04:55,288 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:55,608 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:55,928 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:56,248 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:56,401 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:56,553 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:56,702 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:56,852 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:57,000 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:57,150 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:57,298 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:57,446 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:57,602 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:57,752 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:57,906 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:58,069 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:58,567 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:58,890 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:04:59,134 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:04:59,273 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:04:59,422 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:59,570 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:59,718 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:04:59,865 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:00,013 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:00,160 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:00,313 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:00,419 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:05:00,567 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:00,675 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 13:05:01,175 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:01,498 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 13:05:02,014 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-25 13:05:02,229 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 13:05:02,437 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-09-25 13:05:02,755 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 13:05:02,981 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 13:05:03,298 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 13:05:03,527 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:03,977 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 15 [2020-09-25 13:05:04,576 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 20 [2020-09-25 13:05:04,997 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 12