/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_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:14:23,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:14:23,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:14:23,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:14:23,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:14:23,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:14:23,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:14:23,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:14:23,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:14:23,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:14:23,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:14:23,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:14:23,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:14:23,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:14:23,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:14:23,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:14:23,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:14:23,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:14:23,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:14:23,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:14:23,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:14:23,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:14:23,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:14:23,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:14:23,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:14:23,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:14:23,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:14:23,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:14:23,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:14:23,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:14:23,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:14:23,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:14:23,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:14:23,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:14:23,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:14:23,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:14:23,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:14:23,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:14:23,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:14:23,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:14:23,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:14:23,701 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 13:14:23,736 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:14:23,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:14:23,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:14:23,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:14:23,738 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:14:23,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:14:23,739 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:14:23,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:14:23,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:14:23,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:14:23,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:14:23,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:14:23,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:14:23,740 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:14:23,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:14:23,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:14:23,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:14:23,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:14:23,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:14:23,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:14:23,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:14:23,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:14:23,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:14:23,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:14:23,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:14:23,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:14:23,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:14:23,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:14:23,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:14:23,746 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 13:14:24,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:14:24,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:14:24,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:14:24,259 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:14:24,260 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:14:24,261 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-25 13:14:24,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f419504/780cdd3d776d4976a9a7a4f2c00afc26/FLAGf25398002 [2020-09-25 13:14:24,967 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:14:24,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-25 13:14:24,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f419504/780cdd3d776d4976a9a7a4f2c00afc26/FLAGf25398002 [2020-09-25 13:14:25,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f419504/780cdd3d776d4976a9a7a4f2c00afc26 [2020-09-25 13:14:25,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:14:25,265 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:14:25,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:14:25,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:14:25,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:14:25,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:14:25" (1/1) ... [2020-09-25 13:14:25,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:25, skipping insertion in model container [2020-09-25 13:14:25,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:14:25" (1/1) ... [2020-09-25 13:14:25,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:14:25,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:14:25,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:14:25,864 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:14:26,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:14:26,049 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:14:26,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26 WrapperNode [2020-09-25 13:14:26,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:14:26,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:14:26,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:14:26,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:14:26,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (1/1) ... [2020-09-25 13:14:26,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (1/1) ... [2020-09-25 13:14:26,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (1/1) ... [2020-09-25 13:14:26,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (1/1) ... [2020-09-25 13:14:26,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (1/1) ... [2020-09-25 13:14:26,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (1/1) ... [2020-09-25 13:14:26,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (1/1) ... [2020-09-25 13:14:26,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:14:26,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:14:26,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:14:26,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:14:26,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (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 13:14:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:14:26,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:14:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:14:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:14:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:14:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:14:26,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:14:26,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:14:26,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:14:26,231 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:14:26,231 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:14:26,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:14:26,232 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:14:26,232 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:14:26,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:14:26,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:14:26,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:14:26,233 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:14:26,233 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:14:26,233 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:14:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:14:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:14:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:14:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:14:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:14:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:14:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:14:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:14:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:14:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:14:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:14:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:14:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:14:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:14:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:14:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:14:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:14:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:14:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:14:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:14:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:14:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:14:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:14:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:14:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:14:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:14:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:14:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:14:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:14:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:14:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:14:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:14:26,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:14:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:14:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:14:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:14:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:14:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:14:26,240 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:14:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:14:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:14:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:14:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:14:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:14:26,241 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:14:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:14:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:14:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:14:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:14:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:14:26,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:14:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:14:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:14:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:14:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:14:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:14:26,243 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:14:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:14:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:14:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:14:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:14:26,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:14:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:14:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:14:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:14:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:14:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:14:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:14:27,379 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:14:27,380 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:14:27,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:14:27 BoogieIcfgContainer [2020-09-25 13:14:27,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:14:27,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:14:27,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:14:27,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:14:27,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:14:25" (1/3) ... [2020-09-25 13:14:27,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa81bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:14:27, skipping insertion in model container [2020-09-25 13:14:27,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:26" (2/3) ... [2020-09-25 13:14:27,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa81bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:14:27, skipping insertion in model container [2020-09-25 13:14:27,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:14:27" (3/3) ... [2020-09-25 13:14:27,398 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-09-25 13:14:27,410 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:14:27,422 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:14:27,447 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:14:27,487 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:14:27,487 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:14:27,488 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:14:27,488 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:14:27,488 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:14:27,488 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:14:27,488 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:14:27,488 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:14:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2020-09-25 13:14:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:14:27,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:27,543 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 13:14:27,544 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:27,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:27,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1598852952, now seen corresponding path program 1 times [2020-09-25 13:14:27,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:27,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823490804] [2020-09-25 13:14:27,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:28,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:28,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:30,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:30,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:32,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:32,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:14:32,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:14:32,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-09-25 13:14:32,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:32,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:14:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:14:32,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:14:33,453 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:33,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:33,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:33,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:33,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:33,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:33,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-25 13:14:33,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:33,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:33,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:33,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:33,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:14:33,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:33,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:33,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:33,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:33,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:14:33,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:33,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:33,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:33,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:33,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:33,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:33,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:33,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:33,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:33,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:33,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:33,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:33,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:33,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:33,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:33,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:33,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:33,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:33,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:33,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:33,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:14:33,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:33,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:33,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:33,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:33,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:33,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:33,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:33,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:33,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:33,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:33,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:33,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:33,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:33,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:33,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:33,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:14:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:33,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:33,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:33,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:33,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:33,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:33,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:33,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:33,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:14:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:33,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:33,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:33,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:33,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:33,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:33,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:33,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:33,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:33,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:33,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:33,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:34,006 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 13:14:34,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823490804] [2020-09-25 13:14:34,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:34,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:14:34,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730963617] [2020-09-25 13:14:34,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:14:34,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:34,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:14:34,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:14:34,112 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 4 states. [2020-09-25 13:14:34,786 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:35,724 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2020-09-25 13:14:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:14:35,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:14:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:35,750 INFO L225 Difference]: With dead ends: 419 [2020-09-25 13:14:35,750 INFO L226 Difference]: Without dead ends: 266 [2020-09-25 13:14:35,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 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 13:14:35,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-09-25 13:14:35,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-09-25 13:14:35,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 13:14:35,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 244 transitions. [2020-09-25 13:14:35,873 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 244 transitions. Word has length 142 [2020-09-25 13:14:35,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:35,874 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 244 transitions. [2020-09-25 13:14:35,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:14:35,874 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 244 transitions. [2020-09-25 13:14:35,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:14:35,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:35,887 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 13:14:35,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:14:35,887 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:35,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:35,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1665045851, now seen corresponding path program 1 times [2020-09-25 13:14:35,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:35,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393813495] [2020-09-25 13:14:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:36,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:36,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:36,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:39,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:40,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:40,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:14:40,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:40,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 13:14:40,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:40,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:14:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:14:40,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 13:14:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:41,305 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:41,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:41,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 13:14:41,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:14:41,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:41,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:41,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:41,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:41,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:41,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:41,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:41,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:41,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:41,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:41,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:41,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:41,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:41,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:14:41,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:41,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:41,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:41,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:41,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:41,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:14:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:14:41,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:14:41,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:14:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:14:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:14:41,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:41,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:41,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:41,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:41,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:41,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:41,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:41,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:14:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:41,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:41,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:41,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:41,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:41,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:41,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:14:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:41,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:41,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:41,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:41,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:41,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:41,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:41,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:41,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:41,774 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 13:14:41,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393813495] [2020-09-25 13:14:41,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:41,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:14:41,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319786356] [2020-09-25 13:14:41,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:14:41,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:41,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:14:41,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:14:41,778 INFO L87 Difference]: Start difference. First operand 227 states and 244 transitions. Second operand 7 states. [2020-09-25 13:14:42,259 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:43,624 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:44,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:44,658 INFO L93 Difference]: Finished difference Result 528 states and 627 transitions. [2020-09-25 13:14:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:14:44,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-09-25 13:14:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:44,666 INFO L225 Difference]: With dead ends: 528 [2020-09-25 13:14:44,666 INFO L226 Difference]: Without dead ends: 411 [2020-09-25 13:14:44,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:14:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-25 13:14:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 339. [2020-09-25 13:14:44,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-09-25 13:14:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 376 transitions. [2020-09-25 13:14:44,738 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 376 transitions. Word has length 151 [2020-09-25 13:14:44,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:44,739 INFO L479 AbstractCegarLoop]: Abstraction has 339 states and 376 transitions. [2020-09-25 13:14:44,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:14:44,739 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 376 transitions. [2020-09-25 13:14:44,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 13:14:44,743 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:44,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:14:44,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:14:44,744 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:44,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:44,744 INFO L82 PathProgramCache]: Analyzing trace with hash 2048761925, now seen corresponding path program 1 times [2020-09-25 13:14:44,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:44,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375335831] [2020-09-25 13:14:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:44,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:46,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:49,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:49,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 13:14:49,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:49,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 13:14:49,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:49,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:49,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:14:49,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:14:49,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 13:14:49,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:50,196 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:50,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:50,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 13:14:50,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:14:50,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:50,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:50,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:50,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:50,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:50,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:50,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:50,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:50,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:50,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:14:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:14:50,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 13:14:50,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 13:14:50,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:14:50,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:50,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:50,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:50,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:14:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:14:50,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:14:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:50,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:14:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:50,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:50,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 13:14:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:50,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:50,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:14:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:50,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 13:14:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:50,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:50,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:50,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:50,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:50,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:50,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:50,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:50,852 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 13:14:50,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375335831] [2020-09-25 13:14:50,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:50,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:14:50,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024906413] [2020-09-25 13:14:50,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:14:50,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:50,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:14:50,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:14:50,855 INFO L87 Difference]: Start difference. First operand 339 states and 376 transitions. Second operand 10 states. [2020-09-25 13:14:51,606 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:52,890 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:53,474 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 13:14:53,744 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:54,080 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:14:54,383 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:54,932 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:55,256 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:14:55,599 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:56,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:56,892 INFO L93 Difference]: Finished difference Result 803 states and 1002 transitions. [2020-09-25 13:14:56,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:14:56,893 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-25 13:14:56,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:56,900 INFO L225 Difference]: With dead ends: 803 [2020-09-25 13:14:56,900 INFO L226 Difference]: Without dead ends: 574 [2020-09-25 13:14:56,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:14:56,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-09-25 13:14:57,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 508. [2020-09-25 13:14:57,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-09-25 13:14:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 600 transitions. [2020-09-25 13:14:57,006 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 600 transitions. Word has length 175 [2020-09-25 13:14:57,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:57,007 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 600 transitions. [2020-09-25 13:14:57,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:14:57,007 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 600 transitions. [2020-09-25 13:14:57,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 13:14:57,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:57,012 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:14:57,013 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:14:57,013 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:57,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:57,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1848710268, now seen corresponding path program 1 times [2020-09-25 13:14:57,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:57,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90428051] [2020-09-25 13:14:57,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:57,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:57,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:59,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:59,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 13:14:59,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:14:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2472 [2020-09-25 13:14:59,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:59,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 13:14:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 13:14:59,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:59,911 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:59,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:59,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:00,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 13:15:00,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:00,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:00,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:00,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:00,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:00,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:00,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:00,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:00,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 13:15:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 13:15:00,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:00,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-25 13:15:00,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:15:00,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:00,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:15:00,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:15:00,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 13:15:00,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:15:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 13:15:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:15:00,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 13:15:00,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:15:00,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:15:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:15:00,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:15:00,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:15:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:15:00,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:00,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:15:00,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 13:15:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:00,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:15:00,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:00,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:00,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 13:15:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:00,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:00,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:15:00,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 13:15:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:00,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:00,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:15:00,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:00,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:00,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:00,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-25 13:15:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:00,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:00,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:00,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:00,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 13:15:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:00,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:00,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:00,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:00,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:00,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:00,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:00,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 13:15:00,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90428051] [2020-09-25 13:15:00,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:15:00,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 13:15:00,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224949286] [2020-09-25 13:15:00,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:15:00,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:00,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:15:00,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:15:00,708 INFO L87 Difference]: Start difference. First operand 508 states and 600 transitions. Second operand 12 states. [2020-09-25 13:15:01,512 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:02,447 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:02,762 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:03,075 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:15:03,384 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:03,694 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:04,018 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:05,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:05,079 INFO L93 Difference]: Finished difference Result 980 states and 1200 transitions. [2020-09-25 13:15:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:15:05,080 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 223 [2020-09-25 13:15:05,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:05,085 INFO L225 Difference]: With dead ends: 980 [2020-09-25 13:15:05,085 INFO L226 Difference]: Without dead ends: 582 [2020-09-25 13:15:05,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2020-09-25 13:15:05,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-09-25 13:15:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 477. [2020-09-25 13:15:05,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-09-25 13:15:05,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 534 transitions. [2020-09-25 13:15:05,151 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 534 transitions. Word has length 223 [2020-09-25 13:15:05,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:05,152 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 534 transitions. [2020-09-25 13:15:05,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:15:05,152 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 534 transitions. [2020-09-25 13:15:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 13:15:05,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:05,156 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:05,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:15:05,157 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:05,157 INFO L82 PathProgramCache]: Analyzing trace with hash 440058570, now seen corresponding path program 1 times [2020-09-25 13:15:05,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:05,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031952983] [2020-09-25 13:15:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 13:15:05,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:05,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-09-25 13:15:05,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:05,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 13:15:05,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:15:05,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,223 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:06,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:06,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 13:15:06,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:06,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:06,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:06,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:06,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:06,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:06,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:06,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 13:15:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 13:15:06,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 13:15:06,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:06,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 13:15:06,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:15:06,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 13:15:06,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 13:15:06,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 13:15:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:15:06,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:15:06,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 13:15:06,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:15:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:15:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:15:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:15:06,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:15:06,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:15:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:06,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:15:06,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:15:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:15:06,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:06,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 13:15:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 13:15:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:15:06,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:15:06,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:15:06,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:06,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 13:15:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:06,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:06,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:15:06,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 13:15:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:15:06,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:06,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:15:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:06,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-25 13:15:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:06,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-09-25 13:15:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 13:15:06,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031952983] [2020-09-25 13:15:06,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:15:06,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:15:06,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946447622] [2020-09-25 13:15:06,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:15:06,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:06,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:15:06,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:15:06,939 INFO L87 Difference]: Start difference. First operand 477 states and 534 transitions. Second operand 10 states. [2020-09-25 13:15:08,118 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:08,425 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:08,741 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:09,071 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:15:09,362 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:15:10,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:10,435 INFO L93 Difference]: Finished difference Result 918 states and 1099 transitions. [2020-09-25 13:15:10,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:15:10,435 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 232 [2020-09-25 13:15:10,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:10,439 INFO L225 Difference]: With dead ends: 918 [2020-09-25 13:15:10,440 INFO L226 Difference]: Without dead ends: 551 [2020-09-25 13:15:10,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:15:10,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-09-25 13:15:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 446. [2020-09-25 13:15:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-25 13:15:10,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 498 transitions. [2020-09-25 13:15:10,505 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 498 transitions. Word has length 232 [2020-09-25 13:15:10,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:10,505 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 498 transitions. [2020-09-25 13:15:10,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:15:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 498 transitions. [2020-09-25 13:15:10,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 13:15:10,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:10,511 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:10,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:15:10,511 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:10,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:10,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1546422777, now seen corresponding path program 1 times [2020-09-25 13:15:10,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:10,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909282330] [2020-09-25 13:15:10,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:10,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:11,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking...