/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:30:41,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:30:41,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:30:41,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:30:41,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:30:41,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:30:41,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:30:41,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:30:41,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:30:41,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:30:41,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:30:41,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:30:41,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:30:41,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:30:41,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:30:41,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:30:41,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:30:41,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:30:41,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:30:41,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:30:41,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:30:41,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:30:41,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:30:41,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:30:41,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:30:41,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:30:41,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:30:41,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:30:41,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:30:41,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:30:41,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:30:41,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:30:41,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:30:41,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:30:41,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:30:41,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:30:41,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:30:41,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:30:41,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:30:41,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:30:41,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:30:41,112 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 07:30:41,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:30:41,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:30:41,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:30:41,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:30:41,139 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:30:41,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:30:41,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:30:41,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:30:41,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:30:41,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:30:41,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:30:41,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:30:41,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:30:41,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:30:41,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:30:41,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:30:41,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:30:41,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:30:41,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:30:41,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:30:41,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:30:41,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:30:41,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:30:41,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:30:41,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:30:41,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:30:41,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:30:41,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:30:41,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:30:41,144 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:30:41,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:30:41,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:30:41,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:30:41,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:30:41,613 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:30:41,614 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-09-25 07:30:41,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3de06fd34/aa3eb6a6413348d8813f390e36c603d0/FLAG7bd5d20a8 [2020-09-25 07:30:42,395 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:30:42,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2020-09-25 07:30:42,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3de06fd34/aa3eb6a6413348d8813f390e36c603d0/FLAG7bd5d20a8 [2020-09-25 07:30:42,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3de06fd34/aa3eb6a6413348d8813f390e36c603d0 [2020-09-25 07:30:42,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:30:42,652 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:30:42,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:30:42,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:30:42,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:30:42,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:42" (1/1) ... [2020-09-25 07:30:42,664 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 07:30:42, skipping insertion in model container [2020-09-25 07:30:42,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:42" (1/1) ... [2020-09-25 07:30:42,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:30:42,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:30:43,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:30:43,304 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:30:43,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:30:43,469 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:30:43,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43 WrapperNode [2020-09-25 07:30:43,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:30:43,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:30:43,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:30:43,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:30:43,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (1/1) ... [2020-09-25 07:30:43,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (1/1) ... [2020-09-25 07:30:43,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (1/1) ... [2020-09-25 07:30:43,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (1/1) ... [2020-09-25 07:30:43,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (1/1) ... [2020-09-25 07:30:43,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (1/1) ... [2020-09-25 07:30:43,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (1/1) ... [2020-09-25 07:30:43,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:30:43,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:30:43,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:30:43,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:30:43,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (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 07:30:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:30:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:30:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:30:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:30:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:30:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:30:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:30:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:30:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:30:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:30:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:30:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:30:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:30:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:30:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:30:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:30:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:30:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:30:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:30:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 07:30:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:30:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:30:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:30:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:30:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:30:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:30:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:30:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:30:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:30:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:30:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:30:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:30:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:30:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:30:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:30:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:30:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:30:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:30:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:30:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:30:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:30:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:30:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:30:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:30:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:30:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:30:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:30:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:30:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:30:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:30:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:30:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:30:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:30:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:30:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:30:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:30:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:30:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:30:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:30:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:30:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:30:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:30:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:30:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:30:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:30:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:30:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:30:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:30:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 07:30:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:30:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:30:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:30:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:30:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:30:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:30:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:30:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:30:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:30:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:30:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:30:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:30:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:30:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:30:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:30:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:30:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:30:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:30:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:30:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:30:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:30:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:30:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:30:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:30:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:30:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:30:45,161 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:30:45,162 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:30:45,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:45 BoogieIcfgContainer [2020-09-25 07:30:45,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:30:45,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:30:45,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:30:45,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:30:45,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:30:42" (1/3) ... [2020-09-25 07:30:45,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98cfd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:45, skipping insertion in model container [2020-09-25 07:30:45,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:43" (2/3) ... [2020-09-25 07:30:45,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98cfd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:45, skipping insertion in model container [2020-09-25 07:30:45,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:45" (3/3) ... [2020-09-25 07:30:45,185 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2020-09-25 07:30:45,199 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:30:45,212 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:30:45,239 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:30:45,279 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:30:45,279 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:30:45,279 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:30:45,280 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:30:45,280 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:30:45,280 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:30:45,280 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:30:45,280 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:30:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-25 07:30:45,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:30:45,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:45,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:30:45,340 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:45,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:45,351 INFO L82 PathProgramCache]: Analyzing trace with hash -415680263, now seen corresponding path program 1 times [2020-09-25 07:30:45,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:45,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210091400] [2020-09-25 07:30:45,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:46,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:47,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:50,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:50,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:50,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:30:50,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:50,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 07:30:50,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:50,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:30:50,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:50,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:30:51,307 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:51,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:51,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:51,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:51,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:51,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 07:30:51,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:51,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:51,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:51,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:51,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:30:51,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:51,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:51,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:51,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:51,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:51,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:51,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:51,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:51,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:51,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:51,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:51,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:51,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:51,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:51,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:51,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:51,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:51,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:51,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:51,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:51,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:30:51,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:51,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:51,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:51,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:51,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:51,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:51,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:51,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:51,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:51,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:51,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:51,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:51,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:51,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:51,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:51,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:51,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:51,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:51,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:30:51,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:30:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:51,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:51,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:51,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:51,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:51,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:51,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:51,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:51,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:30:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:51,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:51,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:51,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:30:51,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:51,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:51,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 07:30:51,805 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 07:30:51,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210091400] [2020-09-25 07:30:51,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:51,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:30:51,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85644316] [2020-09-25 07:30:51,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:30:51,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:51,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:30:51,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:30:51,846 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 4 states. [2020-09-25 07:30:53,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:53,490 INFO L93 Difference]: Finished difference Result 559 states and 665 transitions. [2020-09-25 07:30:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:30:53,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:30:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:53,525 INFO L225 Difference]: With dead ends: 559 [2020-09-25 07:30:53,526 INFO L226 Difference]: Without dead ends: 348 [2020-09-25 07:30:53,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:30:53,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-25 07:30:53,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 296. [2020-09-25 07:30:53,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-25 07:30:53,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 326 transitions. [2020-09-25 07:30:53,690 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 326 transitions. Word has length 148 [2020-09-25 07:30:53,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:53,692 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 326 transitions. [2020-09-25 07:30:53,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:30:53,692 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 326 transitions. [2020-09-25 07:30:53,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:30:53,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:53,697 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] [2020-09-25 07:30:53,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:30:53,698 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:53,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:53,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1732114662, now seen corresponding path program 1 times [2020-09-25 07:30:53,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:53,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306437153] [2020-09-25 07:30:53,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:53,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:56,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:57,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:58,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:58,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:30:58,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:30:58,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 07:30:58,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:58,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:30:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:30:58,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,079 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:59,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:59,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:59,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:59,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:59,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 07:30:59,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:59,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:59,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:59,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:59,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:59,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:59,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:59,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:59,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:59,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:59,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:59,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:59,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:59,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:59,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:59,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:59,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:59,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:59,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:59,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:59,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:59,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:59,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:59,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:59,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:59,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:59,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:59,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:30:59,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:59,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:59,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:59,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:59,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:59,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:59,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:59,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:59,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:59,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:59,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:59,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:59,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:30:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:59,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:59,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:59,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:59,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:59,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:59,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:59,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:30:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:59,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:59,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:59,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:59,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:59,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:59,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:59,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:59,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:59,351 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 07:30:59,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306437153] [2020-09-25 07:30:59,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:59,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:30:59,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300467310] [2020-09-25 07:30:59,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:30:59,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:59,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:30:59,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:30:59,356 INFO L87 Difference]: Start difference. First operand 296 states and 326 transitions. Second operand 5 states. [2020-09-25 07:31:00,117 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:31:01,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:01,584 INFO L93 Difference]: Finished difference Result 482 states and 552 transitions. [2020-09-25 07:31:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:31:01,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:31:01,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:01,589 INFO L225 Difference]: With dead ends: 482 [2020-09-25 07:31:01,589 INFO L226 Difference]: Without dead ends: 337 [2020-09-25 07:31:01,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:31:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-25 07:31:01,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 286. [2020-09-25 07:31:01,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-25 07:31:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 313 transitions. [2020-09-25 07:31:01,641 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 313 transitions. Word has length 149 [2020-09-25 07:31:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:01,642 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 313 transitions. [2020-09-25 07:31:01,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:31:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 313 transitions. [2020-09-25 07:31:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 07:31:01,645 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:01,645 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] [2020-09-25 07:31:01,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:31:01,646 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:01,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:01,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1476676505, now seen corresponding path program 1 times [2020-09-25 07:31:01,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:01,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001022686] [2020-09-25 07:31:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:01,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:02,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:04,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:06,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:06,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 07:31:06,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:31:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 07:31:06,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:06,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:31:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 07:31:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 07:31:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:07,121 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:07,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:07,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:07,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:07,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 07:31:07,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:07,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:07,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:31:07,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:07,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:07,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:07,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:07,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:07,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:07,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:07,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:07,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:07,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:07,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:07,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:07,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:07,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:07,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:07,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:07,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:31:07,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:07,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:07,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:07,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:07,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:07,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:07,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:07,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:07,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:07,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:07,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:07,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:07,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:07,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:31:07,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:07,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:31:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:07,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:07,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:07,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:07,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:07,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:31:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:07,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:07,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:07,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:07,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:07,505 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 07:31:07,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001022686] [2020-09-25 07:31:07,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:07,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:31:07,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676406624] [2020-09-25 07:31:07,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:31:07,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:07,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:31:07,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:31:07,508 INFO L87 Difference]: Start difference. First operand 286 states and 313 transitions. Second operand 5 states. [2020-09-25 07:31:08,192 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:31:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:10,721 INFO L93 Difference]: Finished difference Result 692 states and 805 transitions. [2020-09-25 07:31:10,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:31:10,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-09-25 07:31:10,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:10,731 INFO L225 Difference]: With dead ends: 692 [2020-09-25 07:31:10,731 INFO L226 Difference]: Without dead ends: 521 [2020-09-25 07:31:10,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:31:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-09-25 07:31:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 451. [2020-09-25 07:31:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-09-25 07:31:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 506 transitions. [2020-09-25 07:31:10,844 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 506 transitions. Word has length 158 [2020-09-25 07:31:10,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:10,846 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 506 transitions. [2020-09-25 07:31:10,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:31:10,846 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 506 transitions. [2020-09-25 07:31:10,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:31:10,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:10,851 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] [2020-09-25 07:31:10,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:31:10,851 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:10,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:10,851 INFO L82 PathProgramCache]: Analyzing trace with hash 309694267, now seen corresponding path program 1 times [2020-09-25 07:31:10,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:10,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297359148] [2020-09-25 07:31:10,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:10,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:11,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:12,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:14,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:15,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:15,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:31:15,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:31:15,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 07:31:15,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:15,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:31:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:31:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:31:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:16,208 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:16,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:16,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 07:31:16,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:16,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:16,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:16,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:16,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:16,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:16,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:16,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:16,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:16,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:16,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:16,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:16,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:16,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:16,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:16,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:16,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:16,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:16,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:16,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:16,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:31:16,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:16,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:31:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:31:16,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:16,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:31:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:16,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:31:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:16,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:16,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:16,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 07:31:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:16,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:16,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:16,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:16,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:16,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:16,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:16,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:16,436 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 07:31:16,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297359148] [2020-09-25 07:31:16,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:16,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:31:16,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110918277] [2020-09-25 07:31:16,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:31:16,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:16,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:31:16,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:31:16,439 INFO L87 Difference]: Start difference. First operand 451 states and 506 transitions. Second operand 6 states. [2020-09-25 07:31:16,983 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:31:20,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:20,006 INFO L93 Difference]: Finished difference Result 999 states and 1226 transitions. [2020-09-25 07:31:20,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:31:20,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 07:31:20,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:20,022 INFO L225 Difference]: With dead ends: 999 [2020-09-25 07:31:20,022 INFO L226 Difference]: Without dead ends: 996 [2020-09-25 07:31:20,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:31:20,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2020-09-25 07:31:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 790. [2020-09-25 07:31:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-09-25 07:31:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 903 transitions. [2020-09-25 07:31:20,192 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 903 transitions. Word has length 167 [2020-09-25 07:31:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:20,193 INFO L479 AbstractCegarLoop]: Abstraction has 790 states and 903 transitions. [2020-09-25 07:31:20,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:31:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 903 transitions. [2020-09-25 07:31:20,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 07:31:20,201 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:20,202 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, 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] [2020-09-25 07:31:20,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:31:20,203 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:20,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:20,203 INFO L82 PathProgramCache]: Analyzing trace with hash 8577350, now seen corresponding path program 1 times [2020-09-25 07:31:20,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:20,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291185443] [2020-09-25 07:31:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-25 07:31:25,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:31:25,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 07:31:25,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:31:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:31:25,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:31:25,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:25,619 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:25,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:25,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:25,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 07:31:25,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:25,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:25,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:25,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:25,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:25,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:25,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:25,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:25,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:25,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:25,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:25,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:25,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:25,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:25,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:25,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:25,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:25,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:25,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:25,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:25,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:25,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:25,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:25,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:25,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:25,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:25,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:31:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:31:25,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:25,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:31:25,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:31:25,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:25,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:31:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:31:25,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:31:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 07:31:25,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:31:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:31:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:31:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:25,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:25,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:25,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:25,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:31:25,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:25,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 07:31:25,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:25,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:31:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 07:31:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:26,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:26,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:26,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:26,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:26,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:26,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:26,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:26,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:26,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:26,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 07:31:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:26,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:26,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:26,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:26,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:31:26,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:26,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:31:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:26,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:31:26,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:26,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 07:31:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:26,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:26,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:26,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:26,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:26,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:26,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:26,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:26,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 07:31:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:26,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:26,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:26,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:26,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:26,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:26,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:26,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:26,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 07:31:26,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291185443] [2020-09-25 07:31:26,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:31:26,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 07:31:26,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963220854] [2020-09-25 07:31:26,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:31:26,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:26,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:31:26,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:31:26,131 INFO L87 Difference]: Start difference. First operand 790 states and 903 transitions. Second operand 14 states. [2020-09-25 07:31:26,788 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:31:28,402 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:31:28,734 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:31:29,143 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:31:29,507 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:31:29,805 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:31:30,884 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 07:31:31,692 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195