/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_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:37:26,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:37:26,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:37:26,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:37:26,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:37:26,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:37:26,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:37:26,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:37:26,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:37:26,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:37:26,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:37:26,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:37:26,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:37:26,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:37:26,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:37:26,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:37:26,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:37:26,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:37:26,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:37:26,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:37:26,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:37:26,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:37:26,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:37:26,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:37:26,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:37:26,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:37:26,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:37:26,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:37:26,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:37:26,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:37:26,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:37:26,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:37:26,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:37:26,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:37:26,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:37:26,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:37:26,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:37:26,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:37:26,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:37:26,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:37:26,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:37:26,234 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 00:37:26,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:37:26,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:37:26,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:37:26,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:37:26,287 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:37:26,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:37:26,288 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:37:26,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:37:26,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:37:26,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:37:26,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:37:26,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:37:26,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:37:26,290 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:37:26,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:37:26,291 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:37:26,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:37:26,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:37:26,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:37:26,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:37:26,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:37:26,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:37:26,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:37:26,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:37:26,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:37:26,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:37:26,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:37:26,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:37:26,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:37:26,294 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 00:37:26,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:37:26,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:37:26,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:37:26,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:37:26,836 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:37:26,837 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-25 00:37:26,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c1c35abb/8f1992f3f00c4f9589d798fa693b81c5/FLAG2a6b98c89 [2020-09-25 00:37:27,534 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:37:27,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-25 00:37:27,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c1c35abb/8f1992f3f00c4f9589d798fa693b81c5/FLAG2a6b98c89 [2020-09-25 00:37:27,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c1c35abb/8f1992f3f00c4f9589d798fa693b81c5 [2020-09-25 00:37:27,785 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:37:27,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:37:27,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:37:27,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:37:27,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:37:27,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:37:27" (1/1) ... [2020-09-25 00:37:27,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8aa329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:27, skipping insertion in model container [2020-09-25 00:37:27,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:37:27" (1/1) ... [2020-09-25 00:37:27,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:37:27,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:37:28,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:37:28,378 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:37:28,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:37:28,517 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:37:28,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28 WrapperNode [2020-09-25 00:37:28,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:37:28,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:37:28,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:37:28,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:37:28,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (1/1) ... [2020-09-25 00:37:28,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (1/1) ... [2020-09-25 00:37:28,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (1/1) ... [2020-09-25 00:37:28,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (1/1) ... [2020-09-25 00:37:28,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (1/1) ... [2020-09-25 00:37:28,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (1/1) ... [2020-09-25 00:37:28,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (1/1) ... [2020-09-25 00:37:28,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:37:28,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:37:28,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:37:28,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:37:28,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:37:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:37:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:37:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:37:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:37:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:37:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:37:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:37:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:37:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:37:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:37:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:37:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:37:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:37:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:37:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:37:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:37:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:37:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:37:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:37:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:37:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:37:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:37:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:37:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:37:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:37:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:37:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:37:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:37:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:37:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 00:37:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:37:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:37:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:37:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:37:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:37:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:37:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:37:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:37:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:37:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:37:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:37:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:37:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:37:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:37:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:37:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:37:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:37:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:37:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:37:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:37:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:37:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:37:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:37:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:37:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:37:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:37:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:37:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:37:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:37:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:37:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:37:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:37:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:37:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:37:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:37:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:37:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:37:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:37:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:37:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 00:37:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:37:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:37:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:37:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:37:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:37:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:37:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:37:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:37:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:37:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:37:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:37:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:37:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:37:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:37:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:37:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:37:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:37:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:37:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:37:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:37:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:37:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:37:30,194 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:37:30,194 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:37:30,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:37:30 BoogieIcfgContainer [2020-09-25 00:37:30,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:37:30,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:37:30,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:37:30,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:37:30,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:37:27" (1/3) ... [2020-09-25 00:37:30,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15730b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:37:30, skipping insertion in model container [2020-09-25 00:37:30,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:37:28" (2/3) ... [2020-09-25 00:37:30,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15730b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:37:30, skipping insertion in model container [2020-09-25 00:37:30,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:37:30" (3/3) ... [2020-09-25 00:37:30,218 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-09-25 00:37:30,231 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:37:30,247 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:37:30,271 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:37:30,316 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:37:30,316 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:37:30,316 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:37:30,316 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:37:30,316 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:37:30,316 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:37:30,317 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:37:30,317 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:37:30,362 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states. [2020-09-25 00:37:30,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:37:30,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:37:30,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:37:30,401 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:37:30,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:37:30,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1299916906, now seen corresponding path program 1 times [2020-09-25 00:37:30,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:37:30,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476150163] [2020-09-25 00:37:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:37:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:30,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:31,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:32,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:33,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:35,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:35,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:37:35,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:37:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 00:37:35,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:37:35,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:37:35,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:37:35,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:37:36,362 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:37:36,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:37:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:36,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:36,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:36,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:37:36,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:36,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 00:37:36,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:36,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:36,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:37:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:36,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:36,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:36,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:36,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:36,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:37:36,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:36,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:36,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:36,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:36,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:36,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:37:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:36,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:36,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:36,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:36,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:36,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:37:36,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:36,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:36,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:36,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:36,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:36,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:37:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:36,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:36,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:36,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:36,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:37:36,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:37:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:36,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:36,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:36,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:36,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:36,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:37:36,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:36,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:36,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:37:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:36,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:36,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:36,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:36,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:36,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:37:36,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:37:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:37:36,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:37:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:36,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:36,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:36,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:36,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:36,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:37:36,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:37:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:36,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:37:36,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:36,836 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 00:37:36,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476150163] [2020-09-25 00:37:36,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:37:36,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:37:36,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779902049] [2020-09-25 00:37:36,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:37:36,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:37:36,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:37:36,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:37:36,875 INFO L87 Difference]: Start difference. First operand 307 states. Second operand 8 states. [2020-09-25 00:37:37,548 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:37:38,986 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:37:39,257 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:37:39,556 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:37:39,895 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:37:40,197 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:37:40,940 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:37:41,237 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:37:41,610 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:37:42,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:37:42,926 INFO L93 Difference]: Finished difference Result 594 states and 749 transitions. [2020-09-25 00:37:42,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:37:42,928 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:37:42,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:37:42,952 INFO L225 Difference]: With dead ends: 594 [2020-09-25 00:37:42,952 INFO L226 Difference]: Without dead ends: 398 [2020-09-25 00:37:42,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:37:42,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-09-25 00:37:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 354. [2020-09-25 00:37:43,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 00:37:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 409 transitions. [2020-09-25 00:37:43,103 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 409 transitions. Word has length 142 [2020-09-25 00:37:43,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:37:43,104 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 409 transitions. [2020-09-25 00:37:43,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:37:43,104 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 409 transitions. [2020-09-25 00:37:43,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 00:37:43,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:37:43,110 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] [2020-09-25 00:37:43,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:37:43,110 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:37:43,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:37:43,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1277051993, now seen corresponding path program 1 times [2020-09-25 00:37:43,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:37:43,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191558819] [2020-09-25 00:37:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:37:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:43,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:43,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:44,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 00:37:48,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:37:48,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 00:37:48,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:37:48,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 00:37:48,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:37:48,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:48,480 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:37:48,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:37:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:48,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:37:48,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:48,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 00:37:48,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:48,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:37:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:48,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:48,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:48,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:37:48,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:48,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:48,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:37:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:48,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:48,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:48,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:37:48,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:48,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:48,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:37:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:48,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:48,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:48,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:37:48,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:48,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:48,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:48,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:37:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:48,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:48,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:48,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:37:48,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:48,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:48,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 00:37:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:48,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:37:48,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:48,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 00:37:48,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:37:48,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:37:48,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:37:48,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:48,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:37:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:48,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:37:48,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:48,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 00:37:48,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:37:48,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:37:48,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:37:48,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:48,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:37:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:48,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:48,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:48,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:37:48,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:48,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 00:37:48,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:37:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:48,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:37:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:49,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:37:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:49,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:49,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:49,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:37:49,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:49,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:37:49,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:49,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:49,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:49,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:49,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:37:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:49,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:49,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:49,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:37:49,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:37:49,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:37:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:49,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:49,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 00:37:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:49,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:49,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:49,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:49,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:37:49,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:49,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:49,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:37:49,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:49,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:37:49,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 00:37:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:49,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:49,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:49,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:49,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:37:49,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:37:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:49,177 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 00:37:49,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191558819] [2020-09-25 00:37:49,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:37:49,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:37:49,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400352086] [2020-09-25 00:37:49,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:37:49,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:37:49,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:37:49,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:37:49,187 INFO L87 Difference]: Start difference. First operand 354 states and 409 transitions. Second operand 9 states. [2020-09-25 00:37:50,697 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:37:51,017 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:37:51,322 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:37:51,625 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:37:51,938 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:37:52,225 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:37:53,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:37:53,261 INFO L93 Difference]: Finished difference Result 689 states and 861 transitions. [2020-09-25 00:37:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:37:53,261 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-25 00:37:53,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:37:53,268 INFO L225 Difference]: With dead ends: 689 [2020-09-25 00:37:53,268 INFO L226 Difference]: Without dead ends: 445 [2020-09-25 00:37:53,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:37:53,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-25 00:37:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 365. [2020-09-25 00:37:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 00:37:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 420 transitions. [2020-09-25 00:37:53,338 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 420 transitions. Word has length 181 [2020-09-25 00:37:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:37:53,339 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 420 transitions. [2020-09-25 00:37:53,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:37:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 420 transitions. [2020-09-25 00:37:53,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 00:37:53,343 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:37:53,343 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] [2020-09-25 00:37:53,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:37:53,344 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:37:53,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:37:53,344 INFO L82 PathProgramCache]: Analyzing trace with hash 2044045127, now seen corresponding path program 1 times [2020-09-25 00:37:53,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:37:53,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991650628] [2020-09-25 00:37:53,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:37:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:53,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:53,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:54,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:58,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:58,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 00:37:58,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:37:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 00:37:58,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:37:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 00:37:58,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:37:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:37:58,745 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:37:58,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:37:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:58,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:58,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:58,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:37:58,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:58,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 00:37:58,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:58,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:58,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:37:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:58,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:58,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:58,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:58,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:58,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:37:58,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:58,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:58,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:58,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:58,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:58,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:37:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:58,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:58,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:58,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:58,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:58,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:37:58,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:58,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:58,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:58,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:58,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:37:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:58,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:58,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:58,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:58,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:58,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:37:58,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:58,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:58,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:37:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:58,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:58,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:58,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:37:58,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:58,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:37:58,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:58,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:58,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:58,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:58,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 00:37:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:58,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:58,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:58,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:37:58,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:58,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:37:58,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:37:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:37:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:37:58,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:58,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:37:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:58,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:59,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:59,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:37:59,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:59,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 00:37:59,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:37:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:37:59,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:37:59,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:59,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:37:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:59,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:59,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:59,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:37:59,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:59,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 00:37:59,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:37:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:37:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:37:59,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:59,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:37:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:59,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:59,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:59,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:37:59,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:59,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:37:59,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:59,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:37:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:37:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:37:59,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:59,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:37:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:59,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:59,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:59,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:37:59,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:59,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:37:59,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:37:59,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:59,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:37:59,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 00:37:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:59,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:59,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:59,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:59,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:59,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:37:59,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:37:59,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:59,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:59,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 00:37:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:37:59,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:37:59,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:37:59,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:37:59,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:37:59,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:37:59,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:37:59,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:37:59,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:37:59,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:37:59,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:37:59,228 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 00:37:59,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991650628] [2020-09-25 00:37:59,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:37:59,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:37:59,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532344549] [2020-09-25 00:37:59,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:37:59,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:37:59,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:37:59,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:37:59,232 INFO L87 Difference]: Start difference. First operand 365 states and 420 transitions. Second operand 8 states. [2020-09-25 00:38:00,440 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:00,756 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:01,118 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:01,477 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:01,783 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:02,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:02,847 INFO L93 Difference]: Finished difference Result 711 states and 906 transitions. [2020-09-25 00:38:02,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:38:02,848 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-09-25 00:38:02,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:02,854 INFO L225 Difference]: With dead ends: 711 [2020-09-25 00:38:02,854 INFO L226 Difference]: Without dead ends: 456 [2020-09-25 00:38:02,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:38:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-25 00:38:02,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 371. [2020-09-25 00:38:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-25 00:38:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 426 transitions. [2020-09-25 00:38:02,917 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 426 transitions. Word has length 181 [2020-09-25 00:38:02,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:02,918 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 426 transitions. [2020-09-25 00:38:02,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:38:02,918 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 426 transitions. [2020-09-25 00:38:02,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 00:38:02,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:02,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:02,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:38:02,922 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:02,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:02,922 INFO L82 PathProgramCache]: Analyzing trace with hash -406625231, now seen corresponding path program 1 times [2020-09-25 00:38:02,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:02,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015250243] [2020-09-25 00:38:02,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:03,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:03,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 00:38:07,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:38:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 00:38:07,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:38:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 00:38:07,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 00:38:07,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:08,357 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:08,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:08,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 00:38:08,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:08,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:38:08,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:08,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:08,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:08,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:38:08,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:08,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:08,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:38:08,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:08,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:38:08,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:08,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:08,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:08,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:08,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:38:08,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:08,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:38:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:38:08,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:38:08,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 00:38:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:38:08,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:38:08,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:08,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:08,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:38:08,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:08,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:08,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:08,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:08,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:08,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:08,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:08,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:08,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 00:38:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:08,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:38:08,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:08,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:08,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:08,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:38:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:08,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:08,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:08,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:08,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:08,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:08,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:08,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:08,972 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 00:38:08,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015250243] [2020-09-25 00:38:08,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:08,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:38:08,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101613074] [2020-09-25 00:38:08,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:38:08,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:08,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:38:08,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:38:08,976 INFO L87 Difference]: Start difference. First operand 371 states and 426 transitions. Second operand 9 states. [2020-09-25 00:38:09,441 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:10,283 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:10,621 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:10,940 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:11,275 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:11,568 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:12,094 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:12,395 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:12,769 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:14,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:14,847 INFO L93 Difference]: Finished difference Result 1007 states and 1300 transitions. [2020-09-25 00:38:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:38:14,849 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-25 00:38:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:14,854 INFO L225 Difference]: With dead ends: 1007 [2020-09-25 00:38:14,854 INFO L226 Difference]: Without dead ends: 700 [2020-09-25 00:38:14,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:38:14,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-09-25 00:38:14,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 585. [2020-09-25 00:38:14,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-09-25 00:38:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 679 transitions. [2020-09-25 00:38:14,935 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 679 transitions. Word has length 190 [2020-09-25 00:38:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:14,936 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 679 transitions. [2020-09-25 00:38:14,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:38:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 679 transitions. [2020-09-25 00:38:14,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-25 00:38:14,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:14,941 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:14,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:38:14,941 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:14,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:14,942 INFO L82 PathProgramCache]: Analyzing trace with hash 13771918, now seen corresponding path program 1 times [2020-09-25 00:38:14,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:14,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557105589] [2020-09-25 00:38:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:15,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:15,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:15,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:15,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:15,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:15,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:16,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking...