/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=NARROWEST --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_spec5_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:57:48,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:57:48,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:57:48,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:57:48,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:57:48,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:57:48,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:57:48,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:57:48,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:57:48,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:57:48,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:57:48,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:57:48,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:57:48,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:57:48,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:57:48,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:57:48,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:57:48,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:57:48,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:57:48,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:57:48,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:57:48,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:57:48,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:57:48,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:57:48,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:57:48,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:57:48,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:57:48,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:57:48,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:57:48,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:57:48,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:57:48,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:57:48,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:57:48,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:57:48,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:57:48,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:57:48,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:57:48,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:57:48,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:57:48,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:57:48,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:57:48,588 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 01:57:48,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:57:48,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:57:48,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:57:48,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:57:48,634 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:57:48,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:57:48,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:57:48,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:57:48,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:57:48,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:57:48,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:57:48,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:57:48,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:57:48,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:57:48,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:57:48,638 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:57:48,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:57:48,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:57:48,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:57:48,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:57:48,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:57:48,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:57:48,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:57:48,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:57:48,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:57:48,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:57:48,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:57:48,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:57:48,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:57:48,641 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:57:49,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:57:49,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:57:49,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:57:49,129 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:57:49,129 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:57:49,130 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c [2020-09-25 01:57:49,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/992d32c68/24084596ffe34ed0b57255cb06474aa6/FLAGea930406a [2020-09-25 01:57:49,851 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:57:49,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c [2020-09-25 01:57:49,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/992d32c68/24084596ffe34ed0b57255cb06474aa6/FLAGea930406a [2020-09-25 01:57:50,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/992d32c68/24084596ffe34ed0b57255cb06474aa6 [2020-09-25 01:57:50,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:57:50,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:57:50,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:57:50,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:57:50,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:57:50,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:50,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726a206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50, skipping insertion in model container [2020-09-25 01:57:50,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:50,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:57:50,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:57:50,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:57:50,805 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:57:50,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:57:50,988 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:57:50,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50 WrapperNode [2020-09-25 01:57:50,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:57:50,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:57:50,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:57:50,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:57:51,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:51,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:51,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:51,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:51,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:51,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:51,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (1/1) ... [2020-09-25 01:57:51,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:57:51,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:57:51,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:57:51,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:57:51,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (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 01:57:51,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:57:51,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:57:51,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:57:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:57:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:57:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:57:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:57:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:57:51,178 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:57:51,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:57:51,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:57:51,178 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:57:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:57:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:57:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:57:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:57:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:57:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:57:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:57:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:57:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:57:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:57:51,182 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:57:51,182 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:57:51,182 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:57:51,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:57:51,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:57:51,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:57:51,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:57:51,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:57:51,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:57:51,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:57:51,185 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:57:51,185 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:57:51,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:57:51,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:57:51,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:57:51,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:57:51,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:57:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:57:51,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:57:51,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:57:51,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:57:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:57:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:57:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:57:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:57:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:57:51,189 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:57:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:57:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:57:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:57:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:57:51,190 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:57:51,191 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:57:51,191 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:57:51,191 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:57:51,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:57:51,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:57:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:57:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:57:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:57:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:57:51,192 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:57:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:57:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:57:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:57:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:57:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:57:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:57:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:57:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:57:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:57:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:57:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:57:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:57:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:57:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:57:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:57:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:57:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:57:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:57:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:57:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:57:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:57:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:57:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:57:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:57:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:57:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:57:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:57:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:57:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:57:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:57:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:57:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:57:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:57:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:57:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:57:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:57:52,459 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:57:52,459 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:57:52,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:57:52 BoogieIcfgContainer [2020-09-25 01:57:52,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:57:52,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:57:52,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:57:52,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:57:52,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:57:50" (1/3) ... [2020-09-25 01:57:52,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666891f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:57:52, skipping insertion in model container [2020-09-25 01:57:52,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:50" (2/3) ... [2020-09-25 01:57:52,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666891f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:57:52, skipping insertion in model container [2020-09-25 01:57:52,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:57:52" (3/3) ... [2020-09-25 01:57:52,478 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2020-09-25 01:57:52,491 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:57:52,504 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:57:52,530 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:57:52,570 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:57:52,571 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:57:52,571 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:57:52,571 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:57:52,571 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:57:52,572 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:57:52,572 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:57:52,572 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:57:52,604 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-25 01:57:52,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:57:52,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:52,626 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:52,627 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:52,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:52,636 INFO L82 PathProgramCache]: Analyzing trace with hash -505223446, now seen corresponding path program 1 times [2020-09-25 01:57:52,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:52,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594859660] [2020-09-25 01:57:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:53,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:53,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:54,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:57,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:57:58,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:57:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 01:57:58,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:57:58,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:57:58,534 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:58,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:58,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 01:57:58,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:58,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:58,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:57:58,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:58,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:58,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:58,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:58,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:58,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:58,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:57:58,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:58,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:58,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:58,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:58,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:58,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:58,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:58,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:58,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:58,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:58,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:57:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:58,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:58,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:58,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:58,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:58,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:58,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:58,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:57:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:58,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:58,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:58,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:57:58,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:57:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:58,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:58,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:58,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:58,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:58,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:58,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:58,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:59,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:59,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594859660] [2020-09-25 01:57:59,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:59,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:57:59,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352148935] [2020-09-25 01:57:59,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:57:59,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:59,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:57:59,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:57:59,037 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 4 states. [2020-09-25 01:58:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:00,427 INFO L93 Difference]: Finished difference Result 522 states and 614 transitions. [2020-09-25 01:58:00,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:58:00,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:58:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:00,452 INFO L225 Difference]: With dead ends: 522 [2020-09-25 01:58:00,453 INFO L226 Difference]: Without dead ends: 327 [2020-09-25 01:58:00,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 01:58:00,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-09-25 01:58:00,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 280. [2020-09-25 01:58:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 01:58:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 306 transitions. [2020-09-25 01:58:00,654 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 306 transitions. Word has length 160 [2020-09-25 01:58:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:00,656 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 306 transitions. [2020-09-25 01:58:00,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:58:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 306 transitions. [2020-09-25 01:58:00,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:58:00,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:00,662 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:00,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:58:00,663 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:00,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:00,663 INFO L82 PathProgramCache]: Analyzing trace with hash 923274865, now seen corresponding path program 1 times [2020-09-25 01:58:00,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:00,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704528364] [2020-09-25 01:58:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:00,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:00,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:02,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:03,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:05,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:05,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:58:05,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:58:05,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 01:58:05,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:58:05,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:05,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,061 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:06,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:06,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 01:58:06,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:06,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:06,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:06,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:06,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:06,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:58:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:06,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:06,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:06,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:06,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:06,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:06,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:06,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:58:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:06,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:06,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:06,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:58:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:06,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:06,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:06,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:06,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:06,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:06,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:06,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:06,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704528364] [2020-09-25 01:58:06,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:06,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:58:06,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443414816] [2020-09-25 01:58:06,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:58:06,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:06,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:58:06,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:58:06,340 INFO L87 Difference]: Start difference. First operand 280 states and 306 transitions. Second operand 5 states. [2020-09-25 01:58:07,011 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:08,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:08,036 INFO L93 Difference]: Finished difference Result 445 states and 502 transitions. [2020-09-25 01:58:08,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:58:08,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:58:08,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:08,044 INFO L225 Difference]: With dead ends: 445 [2020-09-25 01:58:08,044 INFO L226 Difference]: Without dead ends: 316 [2020-09-25 01:58:08,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 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 01:58:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-09-25 01:58:08,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 270. [2020-09-25 01:58:08,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-25 01:58:08,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 293 transitions. [2020-09-25 01:58:08,121 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 293 transitions. Word has length 161 [2020-09-25 01:58:08,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:08,122 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 293 transitions. [2020-09-25 01:58:08,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:58:08,122 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 293 transitions. [2020-09-25 01:58:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 01:58:08,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:08,126 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:08,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:58:08,126 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:08,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:08,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1619571260, now seen corresponding path program 1 times [2020-09-25 01:58:08,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:08,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111335283] [2020-09-25 01:58:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:08,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:08,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:09,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:10,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:58:13,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:58:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 01:58:13,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:58:13,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:58:13,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:13,620 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:13,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:13,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 01:58:13,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:13,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:13,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:13,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:13,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:13,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:13,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:13,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:13,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:13,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:13,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:58:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:13,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:58:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:13,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:13,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:13,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:13,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:13,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:13,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:13,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 01:58:14,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111335283] [2020-09-25 01:58:14,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:14,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:58:14,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448379498] [2020-09-25 01:58:14,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:58:14,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:14,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:58:14,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:58:14,011 INFO L87 Difference]: Start difference. First operand 270 states and 293 transitions. Second operand 9 states. [2020-09-25 01:58:14,602 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:15,753 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 01:58:16,363 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 01:58:17,429 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:58:17,711 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 01:58:18,063 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:18,628 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:18,923 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:58:19,207 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:19,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:19,999 INFO L93 Difference]: Finished difference Result 566 states and 664 transitions. [2020-09-25 01:58:20,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 01:58:20,004 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 01:58:20,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:20,012 INFO L225 Difference]: With dead ends: 566 [2020-09-25 01:58:20,013 INFO L226 Difference]: Without dead ends: 411 [2020-09-25 01:58:20,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-09-25 01:58:20,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-25 01:58:20,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 363. [2020-09-25 01:58:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-25 01:58:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 402 transitions. [2020-09-25 01:58:20,099 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 402 transitions. Word has length 170 [2020-09-25 01:58:20,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:20,101 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 402 transitions. [2020-09-25 01:58:20,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:58:20,101 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 402 transitions. [2020-09-25 01:58:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 01:58:20,107 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:20,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:20,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:58:20,108 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:20,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:20,108 INFO L82 PathProgramCache]: Analyzing trace with hash 939954101, now seen corresponding path program 1 times [2020-09-25 01:58:20,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:20,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621714048] [2020-09-25 01:58:20,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:20,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:20,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:20,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 01:58:20,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:20,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 773 [2020-09-25 01:58:20,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 01:58:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:20,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:21,267 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:21,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:21,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 01:58:21,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:21,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:21,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:21,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:21,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:21,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:21,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:21,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:21,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:21,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:21,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:21,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:21,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:21,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:21,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:21,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:21,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:58:21,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 01:58:21,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:58:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:21,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:58:21,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 01:58:21,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:21,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:21,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:21,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 01:58:21,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:58:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:58:21,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:21,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:21,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:21,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:58:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:21,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:21,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:21,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:21,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:21,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:58:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:21,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 01:58:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:21,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:21,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:21,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:21,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 01:58:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:21,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:21,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:21,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:21,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:21,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:21,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:21,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:21,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:21,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:21,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621714048] [2020-09-25 01:58:21,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:21,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:58:21,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459961110] [2020-09-25 01:58:21,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:58:21,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:21,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:58:21,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:58:21,798 INFO L87 Difference]: Start difference. First operand 363 states and 402 transitions. Second operand 9 states. [2020-09-25 01:58:23,231 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:23,549 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:58:23,893 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:24,260 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:58:24,559 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:25,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:25,538 INFO L93 Difference]: Finished difference Result 692 states and 820 transitions. [2020-09-25 01:58:25,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:58:25,542 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-25 01:58:25,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:25,547 INFO L225 Difference]: With dead ends: 692 [2020-09-25 01:58:25,547 INFO L226 Difference]: Without dead ends: 444 [2020-09-25 01:58:25,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:58:25,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-09-25 01:58:25,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 370. [2020-09-25 01:58:25,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-25 01:58:25,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 409 transitions. [2020-09-25 01:58:25,587 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 409 transitions. Word has length 208 [2020-09-25 01:58:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:25,588 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 409 transitions. [2020-09-25 01:58:25,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:58:25,588 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 409 transitions. [2020-09-25 01:58:25,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 01:58:25,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:25,591 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:25,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:58:25,592 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:25,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:25,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1065158485, now seen corresponding path program 1 times [2020-09-25 01:58:25,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:25,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224215388] [2020-09-25 01:58:25,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:25,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 01:58:26,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 882 [2020-09-25 01:58:26,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 01:58:26,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:26,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,791 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:26,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:26,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:26,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 01:58:26,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:26,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:26,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:26,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:26,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:26,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:26,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:26,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:26,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:26,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:26,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:26,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:26,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:26,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:26,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:26,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:26,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:26,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:26,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:26,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:26,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:26,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:26,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:26,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:26,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:26,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:26,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:26,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:26,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:26,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:26,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:26,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:26,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:26,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:26,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:27,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:27,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:58:27,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:27,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 01:58:27,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:27,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:27,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:58:27,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:27,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:27,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:27,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:27,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:58:27,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:27,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 01:58:27,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:58:27,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:27,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:27,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:27,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:27,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:27,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:27,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 01:58:27,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:27,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:58:27,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:27,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:27,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:27,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:27,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:27,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:27,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:27,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:27,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:27,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:27,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:27,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:27,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:27,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:27,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:27,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:58:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:27,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:27,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 01:58:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:27,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:27,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:27,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:27,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:27,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:27,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:27,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:27,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:27,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 01:58:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:27,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:27,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:27,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:27,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:27,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224215388] [2020-09-25 01:58:27,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:27,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:58:27,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404041123] [2020-09-25 01:58:27,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:58:27,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:27,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:58:27,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:58:27,372 INFO L87 Difference]: Start difference. First operand 370 states and 409 transitions. Second operand 10 states. [2020-09-25 01:58:29,051 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:29,385 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:58:29,729 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 01:58:30,060 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:30,386 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:58:30,688 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:31,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:31,555 INFO L93 Difference]: Finished difference Result 703 states and 819 transitions. [2020-09-25 01:58:31,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:58:31,557 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-25 01:58:31,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:31,560 INFO L225 Difference]: With dead ends: 703 [2020-09-25 01:58:31,561 INFO L226 Difference]: Without dead ends: 448 [2020-09-25 01:58:31,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:58:31,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-09-25 01:58:31,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 378. [2020-09-25 01:58:31,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-09-25 01:58:31,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 417 transitions. [2020-09-25 01:58:31,608 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 417 transitions. Word has length 208 [2020-09-25 01:58:31,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:31,608 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 417 transitions. [2020-09-25 01:58:31,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:58:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 417 transitions. [2020-09-25 01:58:31,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 01:58:31,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:31,612 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:31,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:58:31,612 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:31,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:31,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1630448242, now seen corresponding path program 1 times [2020-09-25 01:58:31,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:31,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699808365] [2020-09-25 01:58:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:31,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:32,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:32,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 01:58:32,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1311 [2020-09-25 01:58:32,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 01:58:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 01:58:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 01:58:32,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:33,314 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:33,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:33,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 01:58:33,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 01:58:33,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:33,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:33,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:33,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:33,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:33,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:58:33,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:33,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 01:58:33,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:33,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:58:33,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:33,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:33,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:33,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:33,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:33,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:33,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:58:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:33,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:33,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:58:33,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:58:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:33,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:33,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:33,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:33,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:58:33,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 01:58:33,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 01:58:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 01:58:33,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:58:33,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 01:58:33,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:58:33,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:33,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:58:33,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:33,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:33,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:33,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:33,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:58:33,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:33,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:33,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:58:33,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 01:58:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:33,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:33,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:33,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 01:58:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:33,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:33,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:33,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:33,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:33,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:33,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:33,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:34,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:34,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699808365] [2020-09-25 01:58:34,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:34,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:58:34,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038645496] [2020-09-25 01:58:34,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:58:34,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:34,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:58:34,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:58:34,067 INFO L87 Difference]: Start difference. First operand 378 states and 417 transitions. Second operand 7 states. [2020-09-25 01:58:34,625 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:35,963 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189