/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_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:39:25,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:39:25,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:39:25,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:39:25,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:39:25,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:39:25,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:39:25,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:39:25,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:39:25,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:39:25,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:39:25,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:39:25,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:39:25,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:39:25,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:39:25,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:39:25,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:39:25,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:39:25,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:39:25,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:39:25,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:39:25,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:39:25,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:39:25,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:39:25,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:39:25,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:39:25,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:39:25,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:39:25,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:39:25,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:39:25,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:39:25,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:39:25,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:39:25,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:39:25,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:39:25,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:39:25,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:39:25,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:39:25,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:39:25,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:39:25,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:39:25,709 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 23:39:25,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:39:25,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:39:25,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:39:25,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:39:25,758 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:39:25,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:39:25,759 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:39:25,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:39:25,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:39:25,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:39:25,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:39:25,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:39:25,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:39:25,762 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:39:25,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:39:25,762 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:39:25,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:39:25,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:39:25,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:39:25,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:39:25,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:39:25,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:39:25,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:39:25,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:39:25,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:39:25,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:39:25,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:39:25,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:39:25,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:39:25,765 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 23:39:26,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:39:26,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:39:26,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:39:26,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:39:26,299 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:39:26,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-24 23:39:26,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0004d626d/dc61f0b2cdde45ac9342a0bc55fb9e84/FLAGca8b4faa8 [2020-09-24 23:39:26,996 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:39:26,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-24 23:39:27,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0004d626d/dc61f0b2cdde45ac9342a0bc55fb9e84/FLAGca8b4faa8 [2020-09-24 23:39:27,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0004d626d/dc61f0b2cdde45ac9342a0bc55fb9e84 [2020-09-24 23:39:27,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:39:27,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:39:27,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:39:27,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:39:27,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:39:27,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:39:27" (1/1) ... [2020-09-24 23:39:27,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:27, skipping insertion in model container [2020-09-24 23:39:27,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:39:27" (1/1) ... [2020-09-24 23:39:27,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:39:27,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:39:27,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:39:27,905 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:39:28,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:39:28,051 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:39:28,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28 WrapperNode [2020-09-24 23:39:28,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:39:28,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:39:28,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:39:28,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:39:28,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (1/1) ... [2020-09-24 23:39:28,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (1/1) ... [2020-09-24 23:39:28,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (1/1) ... [2020-09-24 23:39:28,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (1/1) ... [2020-09-24 23:39:28,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (1/1) ... [2020-09-24 23:39:28,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (1/1) ... [2020-09-24 23:39:28,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (1/1) ... [2020-09-24 23:39:28,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:39:28,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:39:28,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:39:28,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:39:28,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (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 23:39:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:39:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:39:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:39:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:39:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:39:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:39:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:39:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:39:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:39:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:39:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:39:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:39:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:39:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:39:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:39:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:39:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:39:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:39:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:39:28,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:39:28,244 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:39:28,244 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:39:28,244 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:39:28,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:39:28,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:39:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:39:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:39:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:39:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:39:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:39:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:39:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:39:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:39:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:39:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:39:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:39:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:39:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:39:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:39:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:39:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:39:28,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:39:28,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:39:28,247 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:39:28,248 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:39:28,248 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:39:28,248 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:39:28,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:39:28,248 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:39:28,248 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:39:28,249 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:39:28,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:39:28,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:39:28,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:39:28,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:39:28,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:39:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:39:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:39:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:39:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:39:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:39:28,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:39:28,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:39:28,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:39:28,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:39:28,251 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:39:28,251 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:39:28,251 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:39:28,251 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:39:28,252 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:39:28,252 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:39:28,252 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:39:28,252 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:39:28,252 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:39:28,252 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:39:28,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:39:28,253 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:39:28,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:39:28,253 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:39:28,253 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:39:28,253 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:39:28,254 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:39:28,254 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:39:28,254 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:39:28,254 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:39:28,254 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:39:28,254 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:39:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:39:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:39:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:39:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:39:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:39:28,255 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:39:28,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:39:28,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:39:28,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:39:29,351 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:39:29,351 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:39:29,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:39:29 BoogieIcfgContainer [2020-09-24 23:39:29,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:39:29,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:39:29,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:39:29,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:39:29,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:39:27" (1/3) ... [2020-09-24 23:39:29,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b2dd60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:39:29, skipping insertion in model container [2020-09-24 23:39:29,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:28" (2/3) ... [2020-09-24 23:39:29,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b2dd60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:39:29, skipping insertion in model container [2020-09-24 23:39:29,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:39:29" (3/3) ... [2020-09-24 23:39:29,369 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-09-24 23:39:29,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:39:29,396 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:39:29,421 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:39:29,457 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:39:29,458 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:39:29,458 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:39:29,458 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:39:29,458 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:39:29,458 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:39:29,458 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:39:29,459 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:39:29,490 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-24 23:39:29,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:39:29,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:29,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:39:29,511 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:29,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:29,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1278717342, now seen corresponding path program 1 times [2020-09-24 23:39:29,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:29,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726145110] [2020-09-24 23:39:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:30,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:30,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:31,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:32,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:34,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:34,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:39:34,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:34,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-24 23:39:34,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:34,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:39:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:39:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:39:34,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:39:35,432 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:35,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:35,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:35,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:35,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-24 23:39:35,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:39:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:35,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:35,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:35,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:35,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:35,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:35,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:35,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:35,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:35,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:35,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:35,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:35,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:35,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:35,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:35,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:35,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:35,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:35,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:35,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:35,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:39:35,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:35,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:35,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:35,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:35,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:35,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:35,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:35,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:35,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:35,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:35,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:35,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:35,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:35,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:39:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:35,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:35,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:35,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:35,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:35,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:35,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:35,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:35,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:39:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:35,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:35,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:35,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:35,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:35,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:35,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:35,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:35,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:35,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:36,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726145110] [2020-09-24 23:39:36,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:36,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:39:36,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29357000] [2020-09-24 23:39:36,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:39:36,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:36,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:39:36,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:39:36,127 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 4 states. [2020-09-24 23:39:36,984 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:39,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:39,646 INFO L93 Difference]: Finished difference Result 718 states and 868 transitions. [2020-09-24 23:39:39,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:39:39,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-24 23:39:39,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:39,672 INFO L225 Difference]: With dead ends: 718 [2020-09-24 23:39:39,673 INFO L226 Difference]: Without dead ends: 504 [2020-09-24 23:39:39,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:39:39,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-24 23:39:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 428. [2020-09-24 23:39:39,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-09-24 23:39:39,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 479 transitions. [2020-09-24 23:39:39,850 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 479 transitions. Word has length 142 [2020-09-24 23:39:39,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:39,851 INFO L479 AbstractCegarLoop]: Abstraction has 428 states and 479 transitions. [2020-09-24 23:39:39,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:39:39,852 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 479 transitions. [2020-09-24 23:39:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 23:39:39,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:39,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:39:39,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:39:39,858 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:39,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:39,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1313932918, now seen corresponding path program 1 times [2020-09-24 23:39:39,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:39,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45244311] [2020-09-24 23:39:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:39,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:44,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:44,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 23:39:44,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:44,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:39:44,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:39:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:39:44,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:39:44,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:45,248 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:45,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:45,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-24 23:39:45,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:39:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:45,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:45,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:45,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:45,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:45,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:45,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:45,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:45,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:45,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:45,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:45,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:45,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:45,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:45,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:45,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:45,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:45,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:45,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:39:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:39:45,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:45,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:39:45,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:39:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:45,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:39:45,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:45,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:39:45,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:39:45,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:45,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:45,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:39:45,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:45,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:45,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:45,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:45,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:39:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:45,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:45,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:45,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:39:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:45,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:45,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:45,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:45,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:45,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:45,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45244311] [2020-09-24 23:39:45,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:45,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:39:45,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035354390] [2020-09-24 23:39:45,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:39:45,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:45,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:39:45,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:39:45,715 INFO L87 Difference]: Start difference. First operand 428 states and 479 transitions. Second operand 6 states. [2020-09-24 23:39:46,215 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:48,035 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:39:49,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:49,605 INFO L93 Difference]: Finished difference Result 1176 states and 1448 transitions. [2020-09-24 23:39:49,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:39:49,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-24 23:39:49,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:49,618 INFO L225 Difference]: With dead ends: 1176 [2020-09-24 23:39:49,619 INFO L226 Difference]: Without dead ends: 858 [2020-09-24 23:39:49,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:39:49,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-09-24 23:39:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 713. [2020-09-24 23:39:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-09-24 23:39:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 809 transitions. [2020-09-24 23:39:49,745 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 809 transitions. Word has length 156 [2020-09-24 23:39:49,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:49,746 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 809 transitions. [2020-09-24 23:39:49,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:39:49,746 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 809 transitions. [2020-09-24 23:39:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 23:39:49,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:49,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:39:49,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:39:49,750 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:49,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:49,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1340372779, now seen corresponding path program 1 times [2020-09-24 23:39:49,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:49,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334391285] [2020-09-24 23:39:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:49,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:51,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:53,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:54,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:54,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 23:39:54,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:54,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 23:39:54,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:39:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:39:54,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 23:39:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:55,138 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:55,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:55,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-24 23:39:55,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:39:55,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:55,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:55,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:55,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:55,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:55,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:55,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:55,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:55,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:55,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:39:55,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:55,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:55,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:55,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:55,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:55,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:39:55,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 23:39:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:39:55,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:55,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:39:55,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:39:55,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:55,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:39:55,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:39:55,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 23:39:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:55,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:55,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:55,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:55,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:39:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:55,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:55,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:55,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:55,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:55,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:39:55,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:55,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:55,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334391285] [2020-09-24 23:39:55,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:55,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:39:55,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052190171] [2020-09-24 23:39:55,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:39:55,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:55,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:39:55,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:39:55,669 INFO L87 Difference]: Start difference. First operand 713 states and 809 transitions. Second operand 10 states. [2020-09-24 23:39:56,183 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:57,675 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:58,026 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:58,363 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:58,733 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:59,044 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:59,821 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:00,134 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:00,468 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:40:01,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:40:01,661 INFO L93 Difference]: Finished difference Result 868 states and 1036 transitions. [2020-09-24 23:40:01,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:40:01,662 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 23:40:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:40:01,669 INFO L225 Difference]: With dead ends: 868 [2020-09-24 23:40:01,669 INFO L226 Difference]: Without dead ends: 865 [2020-09-24 23:40:01,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:40:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2020-09-24 23:40:01,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 713. [2020-09-24 23:40:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-09-24 23:40:01,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 807 transitions. [2020-09-24 23:40:01,793 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 807 transitions. Word has length 161 [2020-09-24 23:40:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:40:01,794 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 807 transitions. [2020-09-24 23:40:01,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:40:01,794 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 807 transitions. [2020-09-24 23:40:01,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 23:40:01,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:40:01,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:01,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:40:01,798 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:40:01,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:40:01,799 INFO L82 PathProgramCache]: Analyzing trace with hash -297237460, now seen corresponding path program 1 times [2020-09-24 23:40:01,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:40:01,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300066692] [2020-09-24 23:40:01,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:40:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:03,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:06,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:06,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 23:40:06,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:40:06,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 23:40:06,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:40:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:40:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-24 23:40:06,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:07,358 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:40:07,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:40:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:07,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:07,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:07,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:40:07,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:07,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-24 23:40:07,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:07,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:40:07,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:40:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:07,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:07,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:07,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:07,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:07,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:07,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:07,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:07,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:40:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:07,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:07,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:07,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:07,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:07,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:07,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:07,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:07,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:07,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:07,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:40:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:07,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:07,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:07,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:07,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:07,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:40:07,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:07,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:07,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:40:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:07,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:07,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:07,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:07,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:07,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:07,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:07,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:40:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:07,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:07,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:07,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:07,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 23:40:07,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:40:07,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-24 23:40:07,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:40:07,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:07,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:07,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:07,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 23:40:08,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:40:08,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 23:40:08,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:08,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:40:08,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:08,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:40:08,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:08,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:08,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:40:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:08,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:40:08,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:08,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:08,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:40:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:08,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 23:40:08,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:08,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:40:08,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:08,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:40:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:08,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:40:08,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:08,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:08,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:08,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:08,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:08,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:40:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:08,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:08,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:08,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:08,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:08,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:08,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:08,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 23:40:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:40:08,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:08,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:08,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:08,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:08,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 23:40:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:08,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:08,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:08,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:40:08,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:40:08,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:08,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 23:40:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:08,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:08,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:08,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:08,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:08,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:08,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:08,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:08,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:40:08,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300066692] [2020-09-24 23:40:08,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:40:08,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:40:08,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077098481] [2020-09-24 23:40:08,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:40:08,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:40:08,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:40:08,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:40:08,312 INFO L87 Difference]: Start difference. First operand 713 states and 807 transitions. Second operand 10 states. [2020-09-24 23:40:08,787 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:09,898 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:10,154 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:10,491 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:10,815 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:40:11,113 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:12,285 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:12,613 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:13,079 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:14,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:40:14,694 INFO L93 Difference]: Finished difference Result 1860 states and 2321 transitions. [2020-09-24 23:40:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:40:14,694 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2020-09-24 23:40:14,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:40:14,703 INFO L225 Difference]: With dead ends: 1860 [2020-09-24 23:40:14,704 INFO L226 Difference]: Without dead ends: 1257 [2020-09-24 23:40:14,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:40:14,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-09-24 23:40:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1135. [2020-09-24 23:40:14,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2020-09-24 23:40:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1357 transitions. [2020-09-24 23:40:14,860 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1357 transitions. Word has length 203 [2020-09-24 23:40:14,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:40:14,861 INFO L479 AbstractCegarLoop]: Abstraction has 1135 states and 1357 transitions. [2020-09-24 23:40:14,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:40:14,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1357 transitions. [2020-09-24 23:40:14,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-24 23:40:14,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:40:14,868 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:14,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:40:14,868 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:40:14,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:40:14,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1710613536, now seen corresponding path program 1 times [2020-09-24 23:40:14,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:40:14,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253479541] [2020-09-24 23:40:14,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:40:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:14,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking...