/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=SHALLOWEST --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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:42:18,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:42:18,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:42:18,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:42:18,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:42:18,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:42:18,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:42:18,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:42:18,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:42:18,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:42:18,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:42:18,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:42:18,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:42:18,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:42:18,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:42:18,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:42:18,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:42:18,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:42:18,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:42:18,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:42:18,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:42:18,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:42:18,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:42:18,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:42:18,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:42:18,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:42:18,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:42:18,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:42:18,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:42:18,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:42:18,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:42:18,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:42:18,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:42:18,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:42:18,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:42:18,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:42:18,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:42:18,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:42:18,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:42:18,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:42:18,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:42:18,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:42:18,152 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:42:18,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:42:18,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:42:18,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:42:18,154 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:42:18,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:42:18,154 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:42:18,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:42:18,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:42:18,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:42:18,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:42:18,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:42:18,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:42:18,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:42:18,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:42:18,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:42:18,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:42:18,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:42:18,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:42:18,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:42:18,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:42:18,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:42:18,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:42:18,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:42:18,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:42:18,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:42:18,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:42:18,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:42:18,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:42:18,159 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:42:18,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:42:18,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:42:18,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:42:18,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:42:18,644 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:42:18,645 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2020-09-24 23:42:18,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/844b51c05/42e443870dbd4edb87bc2c1c013f4ec9/FLAGafade5db7 [2020-09-24 23:42:19,311 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:42:19,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2020-09-24 23:42:19,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/844b51c05/42e443870dbd4edb87bc2c1c013f4ec9/FLAGafade5db7 [2020-09-24 23:42:19,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/844b51c05/42e443870dbd4edb87bc2c1c013f4ec9 [2020-09-24 23:42:19,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:42:19,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:42:19,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:42:19,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:42:19,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:42:19,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:42:19" (1/1) ... [2020-09-24 23:42:19,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac45341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:19, skipping insertion in model container [2020-09-24 23:42:19,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:42:19" (1/1) ... [2020-09-24 23:42:19,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:42:19,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:42:20,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:42:20,217 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:42:20,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:42:20,384 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:42:20,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20 WrapperNode [2020-09-24 23:42:20,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:42:20,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:42:20,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:42:20,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:42:20,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (1/1) ... [2020-09-24 23:42:20,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (1/1) ... [2020-09-24 23:42:20,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (1/1) ... [2020-09-24 23:42:20,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (1/1) ... [2020-09-24 23:42:20,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (1/1) ... [2020-09-24 23:42:20,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (1/1) ... [2020-09-24 23:42:20,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (1/1) ... [2020-09-24 23:42:20,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:42:20,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:42:20,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:42:20,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:42:20,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:42:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:42:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:42:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:42:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:42:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:42:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:42:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:42:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:42:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:42:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:42:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:42:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:42:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:42:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:42:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:42:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:42:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:42:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:42:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:42:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:42:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:42:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:42:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:42:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:42:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:42:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:42:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:42:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:42:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:42:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:42:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:42:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:42:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:42:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:42:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:42:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:42:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:42:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:42:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:42:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 23:42:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 23:42:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 23:42:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:42:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:42:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:42:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:42:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:42:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:42:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:42:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:42:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:42:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:42:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:42:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:42:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:42:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 23:42:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 23:42:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:42:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:42:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:42:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:42:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:42:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:42:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:42:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:42:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:42:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:42:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:42:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:42:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:42:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:42:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:42:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 23:42:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:42:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:42:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:42:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:42:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:42:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:42:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:42:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:42:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:42:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:42:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:42:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:42:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:42:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:42:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:42:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:42:21,701 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:42:21,701 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:42:21,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:42:21 BoogieIcfgContainer [2020-09-24 23:42:21,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:42:21,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:42:21,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:42:21,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:42:21,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:42:19" (1/3) ... [2020-09-24 23:42:21,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a95369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:42:21, skipping insertion in model container [2020-09-24 23:42:21,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:42:20" (2/3) ... [2020-09-24 23:42:21,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a95369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:42:21, skipping insertion in model container [2020-09-24 23:42:21,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:42:21" (3/3) ... [2020-09-24 23:42:21,718 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2020-09-24 23:42:21,729 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:42:21,741 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:42:21,763 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:42:21,797 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:42:21,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:42:21,797 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:42:21,797 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:42:21,797 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:42:21,798 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:42:21,798 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:42:21,798 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:42:21,827 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-24 23:42:21,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 23:42:21,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:21,847 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] [2020-09-24 23:42:21,848 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:21,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1798805574, now seen corresponding path program 1 times [2020-09-24 23:42:21,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:21,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1346679398] [2020-09-24 23:42:21,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:22,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:22,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:23,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:23,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:27,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:27,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 23:42:27,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:42:27,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 23:42:27,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:42:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:42:27,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 23:42:27,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-24 23:42:27,927 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:27,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:28,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-24 23:42:28,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:28,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:42:28,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:28,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:28,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:28,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:28,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:42:28,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:28,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:28,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:28,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:42:28,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:28,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:28,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:28,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:28,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:28,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:42:28,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:28,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:42:28,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:42:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:28,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:42:28,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:42:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:28,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:28,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:28,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:28,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:42:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:28,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:28,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:28,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:28,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 23:42:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:28,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:28,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:28,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:28,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:28,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:42:28,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:28,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:42:28,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1346679398] [2020-09-24 23:42:28,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:42:28,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:42:28,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280284110] [2020-09-24 23:42:28,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:42:28,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:42:28,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:42:28,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:42:28,783 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 9 states. [2020-09-24 23:42:29,434 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:30,400 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 23:42:30,926 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 23:42:32,327 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:32,644 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:42:33,006 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:33,527 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:33,832 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:34,130 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:35,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:35,037 INFO L93 Difference]: Finished difference Result 622 states and 758 transitions. [2020-09-24 23:42:35,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:42:35,046 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 23:42:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:35,069 INFO L225 Difference]: With dead ends: 622 [2020-09-24 23:42:35,069 INFO L226 Difference]: Without dead ends: 421 [2020-09-24 23:42:35,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-09-24 23:42:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-24 23:42:35,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 375. [2020-09-24 23:42:35,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2020-09-24 23:42:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 425 transitions. [2020-09-24 23:42:35,209 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 425 transitions. Word has length 160 [2020-09-24 23:42:35,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:35,210 INFO L479 AbstractCegarLoop]: Abstraction has 375 states and 425 transitions. [2020-09-24 23:42:35,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:42:35,211 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 425 transitions. [2020-09-24 23:42:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 23:42:35,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:35,217 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] [2020-09-24 23:42:35,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:42:35,218 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:35,218 INFO L82 PathProgramCache]: Analyzing trace with hash 844316165, now seen corresponding path program 1 times [2020-09-24 23:42:35,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:35,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636427611] [2020-09-24 23:42:35,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:35,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:35,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 23:42:37,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:42:37,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2256 [2020-09-24 23:42:37,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 23:42:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:42:37,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,802 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:37,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:37,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 23:42:37,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:37,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:37,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:37,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:37,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:37,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:37,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:42:37,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:37,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:37,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:37,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:37,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:37,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:37,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:37,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:37,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:42:37,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:37,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:37,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:37,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:42:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:37,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:37,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:37,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:38,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:38,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:42:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:38,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:38,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:38,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:38,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:38,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:38,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:38,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:38,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:38,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:38,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:42:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:38,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:38,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:42:38,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:42:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 23:42:38,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:42:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 23:42:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:42:38,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:38,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:38,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:42:38,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 23:42:38,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:42:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:42:38,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:42:38,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:38,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:38,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:38,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:42:38,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:38,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 23:42:38,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:38,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:38,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:42:38,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:38,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:42:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:38,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:38,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:42:38,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:42:38,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:38,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:38,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:42:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:38,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:38,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:38,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:38,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:38,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:38,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:42:38,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:38,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:38,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 23:42:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:38,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:38,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:38,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:38,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:38,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 23:42:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:38,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:38,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:38,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:38,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:38,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:38,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:38,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:42:38,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636427611] [2020-09-24 23:42:38,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:42:38,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:42:38,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368979550] [2020-09-24 23:42:38,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:42:38,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:42:38,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:42:38,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:42:38,414 INFO L87 Difference]: Start difference. First operand 375 states and 425 transitions. Second operand 11 states. [2020-09-24 23:42:39,248 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:40,377 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:40,684 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:42:41,044 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 23:42:41,351 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:41,667 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:41,958 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:42,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:42,799 INFO L93 Difference]: Finished difference Result 688 states and 813 transitions. [2020-09-24 23:42:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:42:42,800 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-24 23:42:42,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:42,805 INFO L225 Difference]: With dead ends: 688 [2020-09-24 23:42:42,805 INFO L226 Difference]: Without dead ends: 428 [2020-09-24 23:42:42,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:42:42,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-24 23:42:42,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 361. [2020-09-24 23:42:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-09-24 23:42:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 397 transitions. [2020-09-24 23:42:42,905 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 397 transitions. Word has length 199 [2020-09-24 23:42:42,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:42,905 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 397 transitions. [2020-09-24 23:42:42,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:42:42,906 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 397 transitions. [2020-09-24 23:42:42,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 23:42:42,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:42,909 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] [2020-09-24 23:42:42,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:42:42,910 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:42,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:42,910 INFO L82 PathProgramCache]: Analyzing trace with hash -2026253020, now seen corresponding path program 1 times [2020-09-24 23:42:42,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:42,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058473860] [2020-09-24 23:42:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:43,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:43,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:43,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 23:42:43,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:43,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 852 [2020-09-24 23:42:43,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:43,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 23:42:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:42:43,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,078 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:44,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:44,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 23:42:44,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:44,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:42:44,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:44,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:44,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:44,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:44,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:44,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:42:44,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:44,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:44,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:42:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:44,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:44,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:44,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:44,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:44,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:42:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:42:44,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 23:42:44,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 23:42:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:42:44,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:44,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:42:44,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 23:42:44,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:42:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:42:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:44,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:42:44,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 23:42:44,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:42:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:42:44,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:42:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:42:44,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:42:44,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:42:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:44,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:42:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:44,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:44,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:42:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 23:42:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:44,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:44,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:44,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 23:42:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:44,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:44,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:44,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:44,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:44,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:44,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:44,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:44,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:44,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:44,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:44,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:42:44,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058473860] [2020-09-24 23:42:44,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:42:44,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:42:44,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885641456] [2020-09-24 23:42:44,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:42:44,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:42:44,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:42:44,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:42:44,655 INFO L87 Difference]: Start difference. First operand 361 states and 397 transitions. Second operand 9 states. [2020-09-24 23:42:45,917 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:46,235 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:46,586 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:46,908 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:42:47,192 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:47,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:47,994 INFO L93 Difference]: Finished difference Result 680 states and 799 transitions. [2020-09-24 23:42:47,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:42:47,996 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-24 23:42:47,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:48,001 INFO L225 Difference]: With dead ends: 680 [2020-09-24 23:42:48,001 INFO L226 Difference]: Without dead ends: 434 [2020-09-24 23:42:48,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:42:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-09-24 23:42:48,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 367. [2020-09-24 23:42:48,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-09-24 23:42:48,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 403 transitions. [2020-09-24 23:42:48,051 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 403 transitions. Word has length 208 [2020-09-24 23:42:48,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:48,052 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 403 transitions. [2020-09-24 23:42:48,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:42:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 403 transitions. [2020-09-24 23:42:48,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 23:42:48,055 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:48,055 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] [2020-09-24 23:42:48,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:42:48,056 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:48,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:48,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1335758879, now seen corresponding path program 1 times [2020-09-24 23:42:48,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:48,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567787079] [2020-09-24 23:42:48,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:48,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:49,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:49,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 23:42:49,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1336 [2020-09-24 23:42:49,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:42:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:42:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-24 23:42:49,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:49,836 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:49,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:50,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-24 23:42:50,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:42:50,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:50,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:50,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:50,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:50,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:50,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:50,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:50,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:42:50,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:50,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:50,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:50,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:50,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:50,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:42:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:42:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:50,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:50,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:42:50,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:50,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:50,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:42:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:42:50,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 23:42:50,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 23:42:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:42:50,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:50,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:42:50,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:42:50,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:42:50,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:50,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:42:50,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 23:42:50,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:42:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:50,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:42:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:42:50,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:42:50,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:42:50,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:50,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:42:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:50,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:42:50,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:42:50,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:50,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 23:42:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:50,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:50,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:50,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:50,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 23:42:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:50,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:50,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:50,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:50,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:50,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:50,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:50,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:50,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:50,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:50,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:42:50,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567787079] [2020-09-24 23:42:50,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:42:50,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:42:50,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036344495] [2020-09-24 23:42:50,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:42:50,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:42:50,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:42:50,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:42:50,596 INFO L87 Difference]: Start difference. First operand 367 states and 403 transitions. Second operand 7 states. [2020-09-24 23:42:51,147 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:51,817 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:53,817 INFO L93 Difference]: Finished difference Result 961 states and 1140 transitions. [2020-09-24 23:42:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:42:53,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-09-24 23:42:53,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:53,824 INFO L225 Difference]: With dead ends: 961 [2020-09-24 23:42:53,825 INFO L226 Difference]: Without dead ends: 709 [2020-09-24 23:42:53,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:42:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-09-24 23:42:53,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 635. [2020-09-24 23:42:53,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-09-24 23:42:53,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 717 transitions. [2020-09-24 23:42:53,935 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 717 transitions. Word has length 208 [2020-09-24 23:42:53,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:53,935 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 717 transitions. [2020-09-24 23:42:53,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:42:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 717 transitions. [2020-09-24 23:42:53,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 23:42:53,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:53,941 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, 1, 1, 1, 1, 1] [2020-09-24 23:42:53,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:42:53,942 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:53,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:53,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1978565417, now seen corresponding path program 1 times [2020-09-24 23:42:53,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:53,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60847782] [2020-09-24 23:42:53,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:54,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:54,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 23:42:59,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:42:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:42:59,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:42:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:42:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-09-24 23:42:59,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:59,426 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:59,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:59,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-24 23:42:59,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:59,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:59,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:42:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:59,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:59,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:59,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:59,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:59,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:59,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:59,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:59,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:59,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:59,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:42:59,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:59,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:59,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:59,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:59,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:59,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:59,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:59,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:59,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:42:59,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:59,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:42:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:42:59,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:42:59,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:59,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:42:59,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:42:59,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:59,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:42:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:59,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:42:59,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:59,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:59,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:42:59,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:59,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:59,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:59,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:59,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:59,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:59,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:59,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:59,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:59,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:59,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:42:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:59,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:43:00,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 23:43:00,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:43:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 23:43:00,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:43:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:43:00,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:43:00,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:00,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:43:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:43:00,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:43:00,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:00,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:43:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:43:00,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:43:00,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:00,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:43:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:43:00,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:43:00,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 23:43:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:00,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:43:00,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:43:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:43:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:43:00,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 23:43:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:43:00,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:43:00,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:43:00,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:43:00,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:43:00,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:43:00,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:43:00,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:43:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:43:00,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:43:00,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:43:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:43:00,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60847782] [2020-09-24 23:43:00,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:43:00,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 23:43:00,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452066430] [2020-09-24 23:43:00,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 23:43:00,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:43:00,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 23:43:00,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:43:00,167 INFO L87 Difference]: Start difference. First operand 635 states and 717 transitions. Second operand 14 states. [2020-09-24 23:43:00,643 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:43:01,561 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:43:02,360 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:43:02,681 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:43:03,089 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:43:03,416 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:43:03,761 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:43:04,075 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:43:04,477 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:43:04,811 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:43:06,916 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:43:07,156 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:43:07,490 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:43:08,030 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 23:43:09,617 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192