/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:41:28,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:41:28,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:41:28,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:41:28,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:41:28,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:41:28,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:41:28,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:41:28,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:41:28,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:41:28,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:41:28,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:41:28,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:41:28,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:41:28,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:41:28,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:41:28,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:41:28,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:41:28,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:41:28,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:41:28,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:41:28,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:41:28,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:41:28,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:41:28,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:41:28,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:41:28,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:41:28,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:41:28,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:41:28,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:41:28,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:41:28,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:41:28,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:41:28,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:41:28,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:41:28,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:41:28,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:41:28,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:41:28,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:41:28,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:41:28,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:41:28,741 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 00:41:28,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:41:28,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:41:28,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:41:28,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:41:28,768 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:41:28,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:41:28,769 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:41:28,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:41:28,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:41:28,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:41:28,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:41:28,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:41:28,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:41:28,770 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:41:28,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:41:28,771 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:41:28,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:41:28,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:41:28,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:41:28,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:41:28,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:41:28,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:41:28,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:41:28,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:41:28,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:41:28,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:41:28,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:41:28,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:41:28,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:41:28,774 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:41:29,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:41:29,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:41:29,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:41:29,324 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:41:29,324 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:41:29,326 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-25 00:41:29,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d26cae409/97ac76866ec14fe8bcc9ed74a30672f3/FLAGc4bf3e4e7 [2020-09-25 00:41:29,994 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:41:29,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2020-09-25 00:41:30,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d26cae409/97ac76866ec14fe8bcc9ed74a30672f3/FLAGc4bf3e4e7 [2020-09-25 00:41:30,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d26cae409/97ac76866ec14fe8bcc9ed74a30672f3 [2020-09-25 00:41:30,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:41:30,281 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:41:30,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:41:30,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:41:30,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:41:30,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:41:30" (1/1) ... [2020-09-25 00:41:30,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:30, skipping insertion in model container [2020-09-25 00:41:30,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:41:30" (1/1) ... [2020-09-25 00:41:30,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:41:30,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:41:30,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:41:30,962 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:41:31,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:41:31,133 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:41:31,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31 WrapperNode [2020-09-25 00:41:31,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:41:31,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:41:31,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:41:31,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:41:31,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (1/1) ... [2020-09-25 00:41:31,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (1/1) ... [2020-09-25 00:41:31,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (1/1) ... [2020-09-25 00:41:31,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (1/1) ... [2020-09-25 00:41:31,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (1/1) ... [2020-09-25 00:41:31,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (1/1) ... [2020-09-25 00:41:31,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (1/1) ... [2020-09-25 00:41:31,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:41:31,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:41:31,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:41:31,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:41:31,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (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 00:41:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:41:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:41:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:41:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:41:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:41:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:41:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:41:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:41:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:41:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:41:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:41:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:41:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:41:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:41:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:41:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:41:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:41:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:41:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:41:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:41:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:41:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:41:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:41:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:41:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:41:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:41:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:41:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:41:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:41:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:41:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:41:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:41:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:41:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:41:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:41:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:41:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:41:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:41:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:41:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:41:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:41:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:41:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:41:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:41:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:41:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:41:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:41:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:41:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:41:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:41:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:41:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:41:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:41:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:41:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:41:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:41:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:41:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:41:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:41:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:41:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:41:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:41:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:41:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:41:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:41:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:41:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:41:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:41:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:41:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:41:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:41:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:41:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:41:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:41:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 00:41:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 00:41:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:41:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:41:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:41:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:41:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:41:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:41:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:41:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:41:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:41:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:41:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:41:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:41:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:41:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:41:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:41:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:41:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:41:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:41:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:41:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:41:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:41:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:41:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:41:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:41:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:41:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:41:32,614 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:41:32,615 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:41:32,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:41:32 BoogieIcfgContainer [2020-09-25 00:41:32,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:41:32,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:41:32,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:41:32,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:41:32,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:41:30" (1/3) ... [2020-09-25 00:41:32,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45edc4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:41:32, skipping insertion in model container [2020-09-25 00:41:32,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:41:31" (2/3) ... [2020-09-25 00:41:32,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45edc4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:41:32, skipping insertion in model container [2020-09-25 00:41:32,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:41:32" (3/3) ... [2020-09-25 00:41:32,634 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2020-09-25 00:41:32,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:41:32,660 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:41:32,688 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:41:32,726 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:41:32,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:41:32,726 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:41:32,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:41:32,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:41:32,727 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:41:32,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:41:32,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:41:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-25 00:41:32,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 00:41:32,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:32,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:32,779 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:32,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:32,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1985307326, now seen corresponding path program 1 times [2020-09-25 00:41:32,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:32,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619966709] [2020-09-25 00:41:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:33,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:33,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:34,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:35,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:36,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:37,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:38,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:38,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 00:41:38,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:41:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 00:41:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-25 00:41:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:41:38,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 00:41:38,893 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:38,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:38,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:39,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:39,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:39,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 00:41:39,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:39,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:39,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:39,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:39,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:39,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:39,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:39,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:39,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:39,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:39,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:39,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:39,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:39,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:39,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:39,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:39,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:39,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:39,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:39,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:39,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:39,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:39,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:39,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:39,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:39,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:39,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:41:39,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:39,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:39,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:39,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:39,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:39,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:39,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:39,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:39,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:39,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:39,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:39,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:39,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:39,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:39,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:39,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:39,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 00:41:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:39,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:39,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:39,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:39,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:41:39,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:39,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:41:39,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:39,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:39,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:39,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:41:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:39,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:39,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:39,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:39,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:41:39,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:41:39,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:39,299 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 00:41:39,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619966709] [2020-09-25 00:41:39,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:41:39,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:41:39,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537417062] [2020-09-25 00:41:39,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:41:39,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:39,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:41:39,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:41:39,379 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 9 states. [2020-09-25 00:41:40,211 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:41,609 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:41,941 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:42,332 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:42,671 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:41:42,984 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:43,778 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:41:44,064 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:41:44,386 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:45,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:45,570 INFO L93 Difference]: Finished difference Result 684 states and 846 transitions. [2020-09-25 00:41:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:41:45,573 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 00:41:45,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:45,596 INFO L225 Difference]: With dead ends: 684 [2020-09-25 00:41:45,596 INFO L226 Difference]: Without dead ends: 457 [2020-09-25 00:41:45,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:41:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-25 00:41:45,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 402. [2020-09-25 00:41:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 00:41:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 453 transitions. [2020-09-25 00:41:45,752 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 453 transitions. Word has length 148 [2020-09-25 00:41:45,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:45,753 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 453 transitions. [2020-09-25 00:41:45,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:41:45,753 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 453 transitions. [2020-09-25 00:41:45,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 00:41:45,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:45,759 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:45,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:41:45,760 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:45,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:45,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1737480806, now seen corresponding path program 1 times [2020-09-25 00:41:45,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:45,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6180673] [2020-09-25 00:41:45,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:45,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:45,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:46,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:46,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:50,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:50,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-25 00:41:50,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:41:50,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 00:41:50,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-09-25 00:41:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:50,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,121 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:41:51,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:41:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:41:51,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 00:41:51,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:41:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:51,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:51,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:41:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:51,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:51,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:41:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:51,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:51,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:41:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:41:51,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:41:51,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:41:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:51,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:51,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:41:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:41:51,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:41:51,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:41:51,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:51,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:51,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:51,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:41:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:41:51,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 00:41:51,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:51,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 00:41:51,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:51,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:41:51,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 00:41:51,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:51,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:41:51,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:51,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:41:51,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:41:51,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 00:41:51,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:41:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:41:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:41:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:41:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:41:51,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 00:41:51,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:41:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:41:51,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:41:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:41:51,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:41:51,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:41:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:41:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:41:51,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:41:51,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:41:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:41:51,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 00:41:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:51,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:51,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 00:41:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:51,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:51,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:41:51,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:41:51,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:41:51,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:41:51,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:41:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:41:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:41:51,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:41:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:41:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:41:51,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6180673] [2020-09-25 00:41:51,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:41:51,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:41:51,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589255063] [2020-09-25 00:41:51,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:41:51,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:41:51,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:41:51,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:41:51,866 INFO L87 Difference]: Start difference. First operand 402 states and 453 transitions. Second operand 11 states. [2020-09-25 00:41:53,618 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:53,929 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:54,248 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:41:54,567 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:54,883 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:41:55,172 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:41:56,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:41:56,487 INFO L93 Difference]: Finished difference Result 803 states and 982 transitions. [2020-09-25 00:41:56,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:41:56,487 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2020-09-25 00:41:56,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:41:56,495 INFO L225 Difference]: With dead ends: 803 [2020-09-25 00:41:56,496 INFO L226 Difference]: Without dead ends: 516 [2020-09-25 00:41:56,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:41:56,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-25 00:41:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 419. [2020-09-25 00:41:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-25 00:41:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 476 transitions. [2020-09-25 00:41:56,594 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 476 transitions. Word has length 217 [2020-09-25 00:41:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:41:56,595 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 476 transitions. [2020-09-25 00:41:56,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:41:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 476 transitions. [2020-09-25 00:41:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 00:41:56,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:41:56,599 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:41:56,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:41:56,599 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:41:56,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:41:56,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1799809542, now seen corresponding path program 1 times [2020-09-25 00:41:56,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:41:56,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113949168] [2020-09-25 00:41:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:41:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:41:56,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:56,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:56,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:41:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:01,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:01,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-25 00:42:01,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:42:01,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 00:42:01,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:01,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:01,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-25 00:42:01,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:42:01,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:01,995 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:42:01,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:42:02,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:42:02,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:42:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:02,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:02,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:42:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:02,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:02,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:42:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:02,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:02,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:42:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:02,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:02,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:42:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:42:02,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:02,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:42:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:42:02,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:02,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:42:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:02,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:02,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:02,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:42:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:42:02,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 00:42:02,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:02,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 00:42:02,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:42:02,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:42:02,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 00:42:02,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:42:02,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:42:02,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:42:02,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 00:42:02,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:42:02,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:42:02,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:42:02,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 00:42:02,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:42:02,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:42:02,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:42:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:42:02,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:42:02,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:42:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:02,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:42:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:42:02,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:02,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:42:02,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:02,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 00:42:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:02,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:02,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:02,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:02,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 00:42:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:02,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:02,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:02,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:02,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:02,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:02,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:02,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:02,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:42:02,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113949168] [2020-09-25 00:42:02,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:42:02,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:42:02,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494984317] [2020-09-25 00:42:02,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:42:02,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:02,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:42:02,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:42:02,622 INFO L87 Difference]: Start difference. First operand 419 states and 476 transitions. Second operand 10 states. [2020-09-25 00:42:04,384 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:04,653 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:42:05,001 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:05,342 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:42:05,646 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:07,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:07,041 INFO L93 Difference]: Finished difference Result 831 states and 1036 transitions. [2020-09-25 00:42:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:42:07,044 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2020-09-25 00:42:07,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:07,048 INFO L225 Difference]: With dead ends: 831 [2020-09-25 00:42:07,049 INFO L226 Difference]: Without dead ends: 527 [2020-09-25 00:42:07,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:42:07,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-09-25 00:42:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 425. [2020-09-25 00:42:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-09-25 00:42:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 482 transitions. [2020-09-25 00:42:07,099 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 482 transitions. Word has length 217 [2020-09-25 00:42:07,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:07,100 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 482 transitions. [2020-09-25 00:42:07,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:42:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 482 transitions. [2020-09-25 00:42:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 00:42:07,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:07,104 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:07,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:42:07,104 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:07,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:07,105 INFO L82 PathProgramCache]: Analyzing trace with hash 340096375, now seen corresponding path program 1 times [2020-09-25 00:42:07,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:07,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471736467] [2020-09-25 00:42:07,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:07,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-25 00:42:12,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:42:12,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:42:12,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 00:42:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:42:12,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,495 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:42:12,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:42:12,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:42:12,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:42:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:12,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:12,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:42:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:12,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:12,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:42:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:12,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:12,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:42:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:12,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:12,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:42:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:42:12,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:12,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:42:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 00:42:12,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:12,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:12,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:42:12,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:42:12,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:12,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:42:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:12,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:12,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:42:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 00:42:12,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:42:12,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 00:42:12,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:42:12,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:42:12,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:42:12,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:42:12,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:42:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:42:12,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:42:12,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:42:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:42:12,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:12,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:42:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:42:12,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:12,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:12,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 00:42:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:12,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:12,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:12,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 00:42:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:12,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:12,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:12,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:12,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:12,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:12,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:42:12,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471736467] [2020-09-25 00:42:12,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:42:12,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:42:12,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74014685] [2020-09-25 00:42:12,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:42:12,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:12,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:42:12,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:42:12,870 INFO L87 Difference]: Start difference. First operand 425 states and 482 transitions. Second operand 7 states. [2020-09-25 00:42:13,627 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:42:15,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:15,832 INFO L93 Difference]: Finished difference Result 1044 states and 1306 transitions. [2020-09-25 00:42:15,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:42:15,833 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-09-25 00:42:15,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:15,838 INFO L225 Difference]: With dead ends: 1044 [2020-09-25 00:42:15,839 INFO L226 Difference]: Without dead ends: 718 [2020-09-25 00:42:15,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:42:15,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-09-25 00:42:15,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 575. [2020-09-25 00:42:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-09-25 00:42:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 662 transitions. [2020-09-25 00:42:15,909 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 662 transitions. Word has length 217 [2020-09-25 00:42:15,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:15,910 INFO L479 AbstractCegarLoop]: Abstraction has 575 states and 662 transitions. [2020-09-25 00:42:15,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:42:15,910 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 662 transitions. [2020-09-25 00:42:15,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 00:42:15,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:15,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:15,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:42:15,914 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:15,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:15,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1787401371, now seen corresponding path program 1 times [2020-09-25 00:42:15,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:15,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431220266] [2020-09-25 00:42:15,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:16,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:17,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:18,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking...