/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:12:59,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:12:59,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:12:59,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:12:59,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:12:59,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:12:59,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:12:59,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:12:59,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:12:59,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:12:59,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:12:59,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:12:59,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:12:59,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:12:59,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:12:59,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:12:59,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:12:59,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:12:59,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:12:59,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:12:59,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:12:59,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:12:59,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:12:59,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:12:59,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:12:59,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:12:59,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:12:59,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:12:59,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:12:59,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:12:59,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:12:59,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:12:59,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:12:59,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:12:59,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:12:59,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:12:59,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:12:59,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:12:59,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:12:59,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:12:59,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:12:59,554 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 05:12:59,580 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:12:59,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:12:59,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:12:59,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:12:59,582 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:12:59,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:12:59,583 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:12:59,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:12:59,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:12:59,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:12:59,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:12:59,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:12:59,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:12:59,584 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:12:59,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:12:59,584 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:12:59,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:12:59,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:12:59,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:12:59,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:12:59,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:12:59,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:12:59,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:12:59,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:12:59,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:12:59,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:12:59,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:12:59,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:12:59,587 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:12:59,587 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:13:00,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:13:00,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:13:00,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:13:00,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:13:00,132 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:13:00,135 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-25 05:13:00,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/579bbafc5/537aa1e3c2a94e3d9799b307bcad5113/FLAG0fc73541a [2020-09-25 05:13:00,885 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:13:00,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-25 05:13:00,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/579bbafc5/537aa1e3c2a94e3d9799b307bcad5113/FLAG0fc73541a [2020-09-25 05:13:01,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/579bbafc5/537aa1e3c2a94e3d9799b307bcad5113 [2020-09-25 05:13:01,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:13:01,185 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:13:01,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:13:01,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:13:01,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:13:01,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:01,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4700e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01, skipping insertion in model container [2020-09-25 05:13:01,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:01,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:13:01,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:13:01,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:13:01,788 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:13:01,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:13:01,916 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:13:01,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01 WrapperNode [2020-09-25 05:13:01,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:13:01,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:13:01,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:13:01,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:13:01,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:01,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:01,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:01,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:01,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:02,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:02,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (1/1) ... [2020-09-25 05:13:02,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:13:02,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:13:02,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:13:02,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:13:02,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (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 05:13:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:13:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:13:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:13:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:13:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:13:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:13:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:13:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:13:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:13:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:13:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:13:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:13:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:13:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:13:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:13:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:13:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:13:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:13:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:13:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:13:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:13:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:13:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:13:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:13:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:13:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:13:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:13:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:13:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:13:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:13:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:13:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:13:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:13:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:13:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:13:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:13:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:13:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:13:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:13:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:13:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:13:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:13:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:13:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:13:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:13:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:13:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:13:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:13:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:13:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:13:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:13:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:13:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:13:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:13:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:13:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:13:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:13:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:13:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:13:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:13:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:13:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:13:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:13:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:13:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:13:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:13:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:13:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:13:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:13:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:13:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:13:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:13:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:13:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:13:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:13:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:13:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:13:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:13:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:13:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:13:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:13:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:13:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:13:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:13:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:13:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:13:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:13:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:13:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:13:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:13:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:13:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:13:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:13:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:13:03,420 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:13:03,420 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:13:03,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:13:03 BoogieIcfgContainer [2020-09-25 05:13:03,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:13:03,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:13:03,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:13:03,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:13:03,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:13:01" (1/3) ... [2020-09-25 05:13:03,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f25feee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:13:03, skipping insertion in model container [2020-09-25 05:13:03,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:01" (2/3) ... [2020-09-25 05:13:03,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f25feee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:13:03, skipping insertion in model container [2020-09-25 05:13:03,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:13:03" (3/3) ... [2020-09-25 05:13:03,438 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-09-25 05:13:03,449 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:13:03,461 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:13:03,483 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:13:03,516 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:13:03,516 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:13:03,516 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:13:03,516 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:13:03,516 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:13:03,517 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:13:03,517 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:13:03,517 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:13:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 05:13:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:13:03,564 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:03,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:03,566 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:03,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1778587784, now seen corresponding path program 1 times [2020-09-25 05:13:03,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:03,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097552301] [2020-09-25 05:13:03,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:04,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:04,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:04,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:05,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:06,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:08,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:08,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:13:08,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:13:08,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 05:13:08,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:08,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:13:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:08,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 05:13:09,544 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:09,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:09,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:09,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:09,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:09,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 05:13:09,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:09,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:09,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:09,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:09,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:09,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:09,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:09,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:09,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:09,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:09,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:09,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:09,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:09,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:09,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:09,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:09,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:09,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:09,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:09,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:09,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:09,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:09,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:09,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:09,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:09,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:09,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:09,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:09,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:09,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:09,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:09,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:09,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:09,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:09,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:09,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:09,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:09,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:13:09,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:09,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:09,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:09,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:09,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:09,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:09,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:09,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:09,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:13:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:09,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:09,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:09,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:09,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:09,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:09,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:09,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:13:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:09,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:09,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:09,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:09,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:09,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:09,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:09,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:09,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:09,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:09,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:09,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:09,926 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 05:13:09,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097552301] [2020-09-25 05:13:09,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:09,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:13:09,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65346133] [2020-09-25 05:13:09,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:13:09,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:09,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:13:09,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:13:09,960 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 4 states. [2020-09-25 05:13:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:11,849 INFO L93 Difference]: Finished difference Result 500 states and 593 transitions. [2020-09-25 05:13:11,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:13:11,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:13:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:11,872 INFO L225 Difference]: With dead ends: 500 [2020-09-25 05:13:11,873 INFO L226 Difference]: Without dead ends: 317 [2020-09-25 05:13:11,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:13:11,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-25 05:13:11,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 268. [2020-09-25 05:13:11,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 05:13:11,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 293 transitions. [2020-09-25 05:13:11,999 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 293 transitions. Word has length 148 [2020-09-25 05:13:12,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:12,000 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 293 transitions. [2020-09-25 05:13:12,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:13:12,000 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 293 transitions. [2020-09-25 05:13:12,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:13:12,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:12,011 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] [2020-09-25 05:13:12,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:13:12,012 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:12,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:12,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1462569600, now seen corresponding path program 1 times [2020-09-25 05:13:12,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:12,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039853915] [2020-09-25 05:13:12,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:12,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:12,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:12,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:13,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:13,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:13:17,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 05:13:17,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 05:13:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:13:17,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,482 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:17,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:17,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 05:13:17,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 05:13:17,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:17,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:17,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:17,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:17,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:13:17,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:17,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:17,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:17,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:13:17,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:13:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:17,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:13:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,983 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 05:13:17,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039853915] [2020-09-25 05:13:17,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:17,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:13:17,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880617941] [2020-09-25 05:13:17,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:13:17,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:17,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:13:17,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:13:17,989 INFO L87 Difference]: Start difference. First operand 268 states and 293 transitions. Second operand 5 states. [2020-09-25 05:13:18,503 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:19,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:19,548 INFO L93 Difference]: Finished difference Result 470 states and 544 transitions. [2020-09-25 05:13:19,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:13:19,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:13:19,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:19,553 INFO L225 Difference]: With dead ends: 470 [2020-09-25 05:13:19,553 INFO L226 Difference]: Without dead ends: 317 [2020-09-25 05:13:19,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:13:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-25 05:13:19,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 268. [2020-09-25 05:13:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 05:13:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 292 transitions. [2020-09-25 05:13:19,625 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 292 transitions. Word has length 149 [2020-09-25 05:13:19,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:19,626 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 292 transitions. [2020-09-25 05:13:19,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:13:19,627 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 292 transitions. [2020-09-25 05:13:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 05:13:19,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:19,633 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] [2020-09-25 05:13:19,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:13:19,634 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:19,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:19,634 INFO L82 PathProgramCache]: Analyzing trace with hash -2042254420, now seen corresponding path program 1 times [2020-09-25 05:13:19,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:19,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768556387] [2020-09-25 05:13:19,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:19,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:19,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:20,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:21,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:22,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:23,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 05:13:24,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 05:13:24,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 05:13:24,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 05:13:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:24,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,066 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:25,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:25,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 05:13:25,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:25,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:25,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:25,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:25,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:25,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:25,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:25,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:25,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:25,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:25,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:25,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:25,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:13:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 05:13:25,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:13:25,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:13:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:25,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:13:25,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:25,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:13:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:13:25,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:25,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:25,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:25,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:25,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:25,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 05:13:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:25,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:25,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 05:13:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:25,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:25,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:25,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:25,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:25,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:25,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:25,406 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 05:13:25,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768556387] [2020-09-25 05:13:25,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:25,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:13:25,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714453379] [2020-09-25 05:13:25,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:13:25,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:25,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:13:25,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:13:25,411 INFO L87 Difference]: Start difference. First operand 268 states and 292 transitions. Second operand 7 states. [2020-09-25 05:13:25,945 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:27,498 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:28,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:28,939 INFO L93 Difference]: Finished difference Result 651 states and 782 transitions. [2020-09-25 05:13:28,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 05:13:28,941 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-25 05:13:28,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:28,947 INFO L225 Difference]: With dead ends: 651 [2020-09-25 05:13:28,947 INFO L226 Difference]: Without dead ends: 498 [2020-09-25 05:13:28,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 05:13:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-09-25 05:13:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 409. [2020-09-25 05:13:29,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-25 05:13:29,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 457 transitions. [2020-09-25 05:13:29,041 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 457 transitions. Word has length 171 [2020-09-25 05:13:29,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:29,043 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 457 transitions. [2020-09-25 05:13:29,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:13:29,043 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 457 transitions. [2020-09-25 05:13:29,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 05:13:29,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:29,046 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] [2020-09-25 05:13:29,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:13:29,046 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:29,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:29,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1881304255, now seen corresponding path program 1 times [2020-09-25 05:13:29,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:29,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133536491] [2020-09-25 05:13:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:29,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:29,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:30,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:30,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 05:13:34,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:34,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 05:13:34,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:34,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:13:34,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:13:34,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,488 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:34,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:34,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 05:13:34,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:34,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:34,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:34,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:34,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:34,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:34,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:34,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:34,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:34,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:34,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 05:13:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:13:34,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 05:13:34,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 05:13:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:13:34,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 05:13:34,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:13:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:13:34,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:13:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:13:34,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:34,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:34,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:13:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:34,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:34,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 05:13:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:34,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:34,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:34,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 05:13:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:34,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:34,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:34,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:34,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:34,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:34,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:34,912 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 05:13:34,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133536491] [2020-09-25 05:13:34,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:34,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:13:34,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382615203] [2020-09-25 05:13:34,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:13:34,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:34,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:13:34,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:13:34,917 INFO L87 Difference]: Start difference. First operand 409 states and 457 transitions. Second operand 6 states. [2020-09-25 05:13:35,873 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:37,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:37,245 INFO L93 Difference]: Finished difference Result 681 states and 772 transitions. [2020-09-25 05:13:37,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:13:37,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2020-09-25 05:13:37,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:37,251 INFO L225 Difference]: With dead ends: 681 [2020-09-25 05:13:37,251 INFO L226 Difference]: Without dead ends: 447 [2020-09-25 05:13:37,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:13:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-25 05:13:37,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 382. [2020-09-25 05:13:37,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-25 05:13:37,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 414 transitions. [2020-09-25 05:13:37,299 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 414 transitions. Word has length 186 [2020-09-25 05:13:37,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:37,299 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 414 transitions. [2020-09-25 05:13:37,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:13:37,299 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 414 transitions. [2020-09-25 05:13:37,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 05:13:37,302 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:37,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:37,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:13:37,302 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:37,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:37,303 INFO L82 PathProgramCache]: Analyzing trace with hash -991114482, now seen corresponding path program 1 times [2020-09-25 05:13:37,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:37,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471736463] [2020-09-25 05:13:37,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:37,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:38,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:38,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:38,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 05:13:42,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:42,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:13:42,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:13:42,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:13:42,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 05:13:42,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:42,721 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:42,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:42,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 05:13:42,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:42,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:42,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:42,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:42,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:42,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:42,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:42,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:42,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:42,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:42,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:42,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:42,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:42,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:42,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:13:42,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:13:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:42,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:42,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:13:42,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:42,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:13:42,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:42,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 05:13:42,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:42,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:42,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:13:43,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:13:43,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:13:43,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:13:43,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:13:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:13:43,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:43,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:13:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:43,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:43,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:43,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 05:13:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:43,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:43,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:43,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:43,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 05:13:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:43,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:43,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:43,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:43,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:43,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:43,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:43,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:43,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:43,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:43,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:43,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:43,161 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 05:13:43,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471736463] [2020-09-25 05:13:43,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:43,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:13:43,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550729801] [2020-09-25 05:13:43,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:13:43,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:43,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:13:43,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:13:43,164 INFO L87 Difference]: Start difference. First operand 382 states and 414 transitions. Second operand 6 states. [2020-09-25 05:13:43,713 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:46,179 INFO L93 Difference]: Finished difference Result 806 states and 962 transitions. [2020-09-25 05:13:46,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:13:46,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-09-25 05:13:46,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:46,189 INFO L225 Difference]: With dead ends: 806 [2020-09-25 05:13:46,189 INFO L226 Difference]: Without dead ends: 803 [2020-09-25 05:13:46,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:13:46,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2020-09-25 05:13:46,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 657. [2020-09-25 05:13:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-25 05:13:46,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 732 transitions. [2020-09-25 05:13:46,316 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 732 transitions. Word has length 195 [2020-09-25 05:13:46,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:46,317 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 732 transitions. [2020-09-25 05:13:46,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:13:46,317 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 732 transitions. [2020-09-25 05:13:46,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-09-25 05:13:46,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:46,324 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:46,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:13:46,325 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:46,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:46,325 INFO L82 PathProgramCache]: Analyzing trace with hash -790332077, now seen corresponding path program 1 times [2020-09-25 05:13:46,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:46,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227787756] [2020-09-25 05:13:46,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:46,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking...