/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:44:54,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:44:55,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:44:55,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:44:55,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:44:55,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:44:55,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:44:55,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:44:55,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:44:55,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:44:55,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:44:55,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:44:55,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:44:55,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:44:55,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:44:55,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:44:55,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:44:55,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:44:55,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:44:55,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:44:55,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:44:55,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:44:55,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:44:55,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:44:55,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:44:55,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:44:55,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:44:55,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:44:55,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:44:55,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:44:55,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:44:55,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:44:55,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:44:55,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:44:55,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:44:55,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:44:55,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:44:55,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:44:55,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:44:55,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:44:55,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:44:55,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:44:55,138 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:44:55,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:44:55,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:44:55,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:44:55,142 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:44:55,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:44:55,145 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:44:55,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:44:55,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:44:55,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:44:55,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:44:55,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:44:55,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:44:55,146 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:44:55,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:44:55,147 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:44:55,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:44:55,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:44:55,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:44:55,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:44:55,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:44:55,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:44:55,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:44:55,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:44:55,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:44:55,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:44:55,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:44:55,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:44:55,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:44:55,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:44:55,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:44:55,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:44:55,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:44:55,622 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:44:55,624 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:44:55,625 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-09-25 01:44:55,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6dba0031/9622a4b41c8449f2bbd7c89ce61861ce/FLAGd9e56990a [2020-09-25 01:44:56,338 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:44:56,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-09-25 01:44:56,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6dba0031/9622a4b41c8449f2bbd7c89ce61861ce/FLAGd9e56990a [2020-09-25 01:44:56,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6dba0031/9622a4b41c8449f2bbd7c89ce61861ce [2020-09-25 01:44:56,615 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:44:56,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:44:56,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:44:56,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:44:56,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:44:56,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:56, skipping insertion in model container [2020-09-25 01:44:56,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:44:56" (1/1) ... [2020-09-25 01:44:56,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:44:56,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:44:57,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:44:57,206 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:44:57,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:44:57,376 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:44:57,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57 WrapperNode [2020-09-25 01:44:57,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:44:57,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:44:57,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:44:57,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:44:57,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (1/1) ... [2020-09-25 01:44:57,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (1/1) ... [2020-09-25 01:44:57,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (1/1) ... [2020-09-25 01:44:57,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (1/1) ... [2020-09-25 01:44:57,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (1/1) ... [2020-09-25 01:44:57,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (1/1) ... [2020-09-25 01:44:57,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (1/1) ... [2020-09-25 01:44:57,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:44:57,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:44:57,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:44:57,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:44:57,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:44:57,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:44:57,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:44:57,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:44:57,579 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:44:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:44:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:44:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:44:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:44:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:44:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:44:57,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:44:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:44:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:44:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:44:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:44:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:44:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:44:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:44:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:44:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:44:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:44:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:44:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:44:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:44:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:44:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:44:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:44:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:44:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:44:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:44:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:44:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:44:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:44:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:44:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:44:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:44:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:44:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:44:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:44:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:44:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:44:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:44:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:44:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:44:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:44:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:44:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:44:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:44:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:44:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:44:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:44:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:44:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:44:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:44:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:44:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:44:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:44:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:44:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:44:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:44:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:44:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:44:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:44:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:44:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:44:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:44:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:44:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:44:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:44:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:44:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:44:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:44:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:44:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:44:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:44:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:44:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:44:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:44:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:44:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:44:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:44:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:44:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:44:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:44:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:44:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:44:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:44:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:44:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:44:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:44:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:44:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:44:57,605 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:44:57,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:44:57,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:44:57,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:44:58,868 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:44:58,868 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:44:58,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:44:58 BoogieIcfgContainer [2020-09-25 01:44:58,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:44:58,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:44:58,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:44:58,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:44:58,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:44:56" (1/3) ... [2020-09-25 01:44:58,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2586d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:44:58, skipping insertion in model container [2020-09-25 01:44:58,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:44:57" (2/3) ... [2020-09-25 01:44:58,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2586d4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:44:58, skipping insertion in model container [2020-09-25 01:44:58,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:44:58" (3/3) ... [2020-09-25 01:44:58,898 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2020-09-25 01:44:58,910 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:44:58,924 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:44:58,948 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:44:58,987 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:44:58,987 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:44:58,988 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:44:58,988 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:44:58,988 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:44:58,989 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:44:58,989 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:44:58,990 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:44:59,030 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-09-25 01:44:59,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:44:59,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:44:59,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:44:59,049 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:44:59,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:44:59,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1497316138, now seen corresponding path program 1 times [2020-09-25 01:44:59,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:44:59,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324547970] [2020-09-25 01:44:59,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:44:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:44:59,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:44:59,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:01,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:02,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:03,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:04,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:04,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:45:04,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 01:45:04,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:45:04,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:04,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 01:45:04,988 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:04,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:05,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:05,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:05,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:05,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:05,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 01:45:05,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:05,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:05,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:05,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:05,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:05,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:05,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:05,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:05,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:45:05,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:05,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:05,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:05,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:05,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:05,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:05,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:05,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:05,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:05,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:05,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:05,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:05,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:05,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:45:05,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:05,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:05,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:05,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:05,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:05,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:05,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:05,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:05,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:05,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:45:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:05,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:05,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:05,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:05,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:05,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:05,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:05,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:05,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:05,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:05,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:05,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:45:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:05,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:05,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:05,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:05,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:05,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 01:45:05,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:45:05,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324547970] [2020-09-25 01:45:05,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:05,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:45:05,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776560352] [2020-09-25 01:45:05,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:45:05,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:05,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:45:05,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:05,426 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2020-09-25 01:45:07,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:07,791 INFO L93 Difference]: Finished difference Result 503 states and 599 transitions. [2020-09-25 01:45:07,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:45:07,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:45:07,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:07,814 INFO L225 Difference]: With dead ends: 503 [2020-09-25 01:45:07,815 INFO L226 Difference]: Without dead ends: 310 [2020-09-25 01:45:07,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-25 01:45:07,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 267. [2020-09-25 01:45:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 01:45:07,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 291 transitions. [2020-09-25 01:45:07,975 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 291 transitions. Word has length 142 [2020-09-25 01:45:07,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:07,977 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 291 transitions. [2020-09-25 01:45:07,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:45:07,980 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 291 transitions. [2020-09-25 01:45:07,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:45:07,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:07,994 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] [2020-09-25 01:45:07,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:45:07,994 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:07,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:07,995 INFO L82 PathProgramCache]: Analyzing trace with hash -316918305, now seen corresponding path program 1 times [2020-09-25 01:45:07,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:07,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956536475] [2020-09-25 01:45:07,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:08,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:08,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:09,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:10,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:12,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:13,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:13,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:45:13,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 01:45:13,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:45:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:45:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:13,427 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:13,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:13,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:13,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:13,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:13,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 01:45:13,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:13,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:13,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:13,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:13,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:13,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:13,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:13,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:13,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:13,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:13,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:13,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:13,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:13,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:13,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:13,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:13,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:13,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:13,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:13,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:13,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:13,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:13,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:13,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:13,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:13,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:13,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:13,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:13,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:13,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:13,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:13,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:13,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:13,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:13,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:13,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:13,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:13,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:13,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:13,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:13,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:45:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:13,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:13,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:13,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:13,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:13,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:45:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:13,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:13,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:13,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:13,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:13,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:13,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:13,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:13,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:13,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:13,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:45:13,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956536475] [2020-09-25 01:45:13,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:13,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:45:13,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311773364] [2020-09-25 01:45:13,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:45:13,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:13,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:45:13,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:45:13,652 INFO L87 Difference]: Start difference. First operand 267 states and 291 transitions. Second operand 4 states. [2020-09-25 01:45:14,266 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:15,297 INFO L93 Difference]: Finished difference Result 414 states and 466 transitions. [2020-09-25 01:45:15,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:45:15,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:45:15,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:15,308 INFO L225 Difference]: With dead ends: 414 [2020-09-25 01:45:15,309 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 01:45:15,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:45:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 01:45:15,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-09-25 01:45:15,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-25 01:45:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 278 transitions. [2020-09-25 01:45:15,373 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 278 transitions. Word has length 143 [2020-09-25 01:45:15,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:15,374 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 278 transitions. [2020-09-25 01:45:15,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:45:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 278 transitions. [2020-09-25 01:45:15,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 01:45:15,377 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:15,377 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] [2020-09-25 01:45:15,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:45:15,377 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:15,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:15,378 INFO L82 PathProgramCache]: Analyzing trace with hash -816638074, now seen corresponding path program 1 times [2020-09-25 01:45:15,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:15,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041654325] [2020-09-25 01:45:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:15,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:16,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:17,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:20,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 01:45:20,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:45:20,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 01:45:20,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:20,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:20,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:45:20,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:45:20,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:20,729 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:20,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:20,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:20,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:20,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 01:45:20,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:20,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:20,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:20,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:20,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:20,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:20,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:20,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:20,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:20,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:20,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:20,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:20,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:20,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:20,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:20,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:20,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:20,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:20,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:20,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:20,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:20,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:20,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:20,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:20,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:20,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:20,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:20,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:20,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:20,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:20,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:20,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:20,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:20,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:20,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:20,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:20,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:45:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:20,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:20,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:20,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:20,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 01:45:20,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:20,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:20,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 01:45:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:20,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:20,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:20,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:20,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:20,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:45:20,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:20,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:45:21,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041654325] [2020-09-25 01:45:21,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:21,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:45:21,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768827579] [2020-09-25 01:45:21,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:45:21,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:21,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:45:21,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:45:21,102 INFO L87 Difference]: Start difference. First operand 257 states and 278 transitions. Second operand 8 states. [2020-09-25 01:45:21,654 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:22,897 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:23,532 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 01:45:23,854 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:24,182 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:45:24,492 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:25,088 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:45:25,392 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:25,730 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:26,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:26,598 INFO L93 Difference]: Finished difference Result 523 states and 611 transitions. [2020-09-25 01:45:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 01:45:26,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-25 01:45:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:26,603 INFO L225 Difference]: With dead ends: 523 [2020-09-25 01:45:26,603 INFO L226 Difference]: Without dead ends: 376 [2020-09-25 01:45:26,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:45:26,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-09-25 01:45:26,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 345. [2020-09-25 01:45:26,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-25 01:45:26,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 386 transitions. [2020-09-25 01:45:26,658 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 386 transitions. Word has length 152 [2020-09-25 01:45:26,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:26,659 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 386 transitions. [2020-09-25 01:45:26,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:45:26,660 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 386 transitions. [2020-09-25 01:45:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:45:26,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:26,662 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] [2020-09-25 01:45:26,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:45:26,663 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:26,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:26,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1944721932, now seen corresponding path program 1 times [2020-09-25 01:45:26,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:26,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047776273] [2020-09-25 01:45:26,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:26,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:27,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:31,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 01:45:31,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:45:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4692 [2020-09-25 01:45:31,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:45:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:31,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:31,723 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:31,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:31,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:31,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:31,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:31,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 01:45:31,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:31,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:31,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:31,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:31,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:31,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:31,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:31,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:31,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:31,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:31,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:31,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:31,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:31,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:31,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:31,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:31,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:31,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:31,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:31,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:31,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:31,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:31,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:31,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:31,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:31,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:31,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:31,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:31,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:31,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:31,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:31,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:31,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:31,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:31,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:31,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:45:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:31,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:32,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:32,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:45:32,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:32,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 01:45:32,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:45:32,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:32,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:32,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:32,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:32,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:32,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:45:32,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:32,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 01:45:32,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:32,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:32,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:45:32,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:32,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:32,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:32,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:32,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:32,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:45:32,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 01:45:32,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:45:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:32,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:32,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:45:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:32,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:32,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:32,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:45:32,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:32,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:45:32,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:32,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:45:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:32,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:45:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:45:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:32,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:32,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:32,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:32,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:32,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:32,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:32,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:45:32,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:32,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:32,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 01:45:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:32,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:32,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:32,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:32,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:45:32,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:32,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 01:45:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:32,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:32,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:32,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:32,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:32,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:45:32,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047776273] [2020-09-25 01:45:32,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:32,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:45:32,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103149089] [2020-09-25 01:45:32,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:45:32,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:32,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:45:32,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:45:32,389 INFO L87 Difference]: Start difference. First operand 345 states and 386 transitions. Second operand 8 states. [2020-09-25 01:45:33,761 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:45:34,087 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:45:34,416 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:34,739 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:45:35,028 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:35,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:35,953 INFO L93 Difference]: Finished difference Result 648 states and 773 transitions. [2020-09-25 01:45:35,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 01:45:35,956 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-25 01:45:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:35,961 INFO L225 Difference]: With dead ends: 648 [2020-09-25 01:45:35,961 INFO L226 Difference]: Without dead ends: 413 [2020-09-25 01:45:35,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 01:45:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-25 01:45:36,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 354. [2020-09-25 01:45:36,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 01:45:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 395 transitions. [2020-09-25 01:45:36,004 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 395 transitions. Word has length 190 [2020-09-25 01:45:36,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:36,005 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 395 transitions. [2020-09-25 01:45:36,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:45:36,005 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 395 transitions. [2020-09-25 01:45:36,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 01:45:36,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:36,007 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] [2020-09-25 01:45:36,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:45:36,008 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:36,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:36,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1376375188, now seen corresponding path program 1 times [2020-09-25 01:45:36,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:36,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719629786] [2020-09-25 01:45:36,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:36,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:36,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:40,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:40,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 01:45:40,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:45:40,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4917 [2020-09-25 01:45:40,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 01:45:40,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:45:40,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,267 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:41,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 01:45:41,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:41,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:41,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:41,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:41,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:41,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:41,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:41,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:41,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:41,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:41,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:41,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:41,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:41,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:41,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:45:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 01:45:41,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 01:45:41,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:45:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:45:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 01:45:41,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 01:45:41,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:45:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:45:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:45:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:45:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:45:41,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 01:45:41,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:45:41,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:45:41,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:45:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:45:41,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:41,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:41,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:45:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:45:41,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:41,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 01:45:41,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 01:45:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:41,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:41,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:41,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 01:45:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:41,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:41,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:41,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:41,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:41,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:41,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:41,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:41,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:41,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:41,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:45:41,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719629786] [2020-09-25 01:45:41,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:41,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:45:41,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801556027] [2020-09-25 01:45:41,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:45:41,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:41,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:45:41,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:45:41,888 INFO L87 Difference]: Start difference. First operand 354 states and 395 transitions. Second operand 9 states.