/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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:36:11,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:36:11,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:36:11,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:36:11,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:36:11,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:36:11,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:36:11,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:36:11,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:36:11,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:36:11,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:36:11,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:36:11,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:36:11,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:36:11,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:36:11,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:36:11,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:36:11,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:36:11,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:36:11,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:36:11,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:36:11,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:36:11,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:36:11,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:36:11,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:36:11,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:36:11,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:36:11,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:36:11,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:36:11,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:36:11,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:36:11,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:36:11,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:36:11,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:36:11,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:36:11,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:36:11,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:36:11,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:36:11,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:36:11,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:36:11,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:36:11,631 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 07:36:11,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:36:11,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:36:11,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:36:11,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:36:11,677 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:36:11,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:36:11,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:36:11,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:36:11,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:36:11,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:36:11,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:36:11,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:36:11,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:36:11,680 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:36:11,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:36:11,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:36:11,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:36:11,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:36:11,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:36:11,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:36:11,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:36:11,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:36:11,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:36:11,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:36:11,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:36:11,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:36:11,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:36:11,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:36:11,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:36:11,683 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:36:12,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:36:12,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:36:12,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:36:12,169 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:36:12,170 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:36:12,171 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-09-25 07:36:12,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d8ebe4d9/f3195787fc6a4f448c5911253e622ce0/FLAGb6656d76a [2020-09-25 07:36:12,857 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:36:12,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-09-25 07:36:12,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d8ebe4d9/f3195787fc6a4f448c5911253e622ce0/FLAGb6656d76a [2020-09-25 07:36:13,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d8ebe4d9/f3195787fc6a4f448c5911253e622ce0 [2020-09-25 07:36:13,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:36:13,102 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:36:13,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:13,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:36:13,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:36:13,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13, skipping insertion in model container [2020-09-25 07:36:13,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:36:13,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:36:13,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:13,682 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:36:13,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:36:13,820 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:36:13,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13 WrapperNode [2020-09-25 07:36:13,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:36:13,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:36:13,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:36:13,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:36:13,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (1/1) ... [2020-09-25 07:36:13,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:36:13,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:36:13,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:36:13,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:36:13,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (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 07:36:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:36:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:36:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:36:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:36:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:36:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:36:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:36:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:36:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:36:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:36:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:36:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:36:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:36:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:36:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:36:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:36:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:36:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:36:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:36:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:36:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:36:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:36:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:36:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:36:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:36:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:36:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:36:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:36:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:36:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:36:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:36:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:36:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:36:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:36:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:36:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:36:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:36:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:36:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:36:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:36:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:36:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:36:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:36:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:36:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:36:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:36:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:36:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:36:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:36:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:36:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:36:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:36:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:36:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:36:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:36:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:36:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:36:14,034 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:36:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 07:36:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:36:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:36:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:36:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:36:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:36:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:36:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:36:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:36:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:36:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:36:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:36:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:36:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:36:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:36:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:36:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:36:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:36:14,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:36:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:36:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:36:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:36:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:36:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:36:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:36:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:36:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:36:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:36:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:36:15,163 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:36:15,163 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:36:15,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:15 BoogieIcfgContainer [2020-09-25 07:36:15,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:36:15,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:36:15,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:36:15,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:36:15,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:36:13" (1/3) ... [2020-09-25 07:36:15,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c7784f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:15, skipping insertion in model container [2020-09-25 07:36:15,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:36:13" (2/3) ... [2020-09-25 07:36:15,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c7784f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:36:15, skipping insertion in model container [2020-09-25 07:36:15,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:36:15" (3/3) ... [2020-09-25 07:36:15,181 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-09-25 07:36:15,193 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:36:15,204 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:36:15,229 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:36:15,264 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:36:15,264 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:36:15,265 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:36:15,265 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:36:15,265 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:36:15,265 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:36:15,265 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:36:15,265 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:36:15,297 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 07:36:15,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:36:15,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:15,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:15,318 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:15,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:15,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1971275482, now seen corresponding path program 1 times [2020-09-25 07:36:15,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:15,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978471194] [2020-09-25 07:36:15,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:15,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:16,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:17,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:18,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:20,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:20,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:36:20,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:36:20,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 07:36:20,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:20,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:36:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:20,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 07:36:21,101 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:21,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:21,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:21,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:21,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:21,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:21,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 07:36:21,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:21,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:21,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:21,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:21,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:21,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:21,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:21,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:21,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:21,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:21,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:21,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:21,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:21,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:21,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:21,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:21,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:21,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:21,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:21,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:21,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:21,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:21,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:36:21,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:21,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:21,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:21,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:21,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:21,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:21,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:21,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:21,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:21,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:21,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:21,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:36:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:21,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:21,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:21,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:21,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:21,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:21,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:21,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:21,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:36:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:21,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:21,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:21,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:21,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:21,369 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 07:36:21,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978471194] [2020-09-25 07:36:21,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:21,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:36:21,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101359629] [2020-09-25 07:36:21,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:36:21,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:21,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:36:21,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:36:21,403 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-25 07:36:22,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:22,932 INFO L93 Difference]: Finished difference Result 486 states and 576 transitions. [2020-09-25 07:36:22,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:36:22,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:36:22,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:22,962 INFO L225 Difference]: With dead ends: 486 [2020-09-25 07:36:22,962 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 07:36:22,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:36:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 07:36:23,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-25 07:36:23,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 07:36:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-09-25 07:36:23,087 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 142 [2020-09-25 07:36:23,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:23,088 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-09-25 07:36:23,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:36:23,088 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-09-25 07:36:23,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:36:23,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:23,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:23,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:36:23,097 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:23,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:23,097 INFO L82 PathProgramCache]: Analyzing trace with hash 633899820, now seen corresponding path program 1 times [2020-09-25 07:36:23,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:23,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950409761] [2020-09-25 07:36:23,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:23,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:23,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:24,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:25,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:28,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:28,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:36:28,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:36:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 07:36:28,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:28,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:36:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:36:28,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:28,523 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:28,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:28,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:28,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:28,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:28,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 07:36:28,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:28,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:28,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:28,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:28,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:28,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:28,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:28,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:28,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:28,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:28,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:28,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:28,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:28,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:28,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:28,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:28,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:28,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:28,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:28,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:28,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:28,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:28,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:28,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:28,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:28,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:28,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:28,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:28,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:36:28,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:28,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:28,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:28,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:28,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:28,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:28,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:28,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:28,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:28,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:28,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:28,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:28,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:36:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:28,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:28,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:28,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:28,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:28,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:28,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:28,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:28,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:28,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:28,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:36:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:28,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:28,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:28,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:28,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:28,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:28,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:28,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:28,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:28,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:28,761 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 07:36:28,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950409761] [2020-09-25 07:36:28,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:28,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:36:28,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598304179] [2020-09-25 07:36:28,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:36:28,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:28,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:36:28,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:36:28,771 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-09-25 07:36:29,373 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:36:30,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:30,398 INFO L93 Difference]: Finished difference Result 399 states and 447 transitions. [2020-09-25 07:36:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:36:30,399 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:36:30,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:30,403 INFO L225 Difference]: With dead ends: 399 [2020-09-25 07:36:30,403 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 07:36:30,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:36:30,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 07:36:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-25 07:36:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 07:36:30,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-09-25 07:36:30,449 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 143 [2020-09-25 07:36:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:30,450 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-09-25 07:36:30,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:36:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-09-25 07:36:30,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 07:36:30,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:30,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:36:30,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:36:30,453 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:30,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:30,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1196513202, now seen corresponding path program 1 times [2020-09-25 07:36:30,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:30,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789986946] [2020-09-25 07:36:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:30,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:30,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:31,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:32,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:36:35,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:36:35,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:36:35,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:36:35,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:36:35,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:35,769 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:35,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:35,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:35,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 07:36:35,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:35,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:35,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:35,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:35,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:35,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:35,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:35,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:35,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:35,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:35,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:35,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:35,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:35,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:35,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:35,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:35,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:35,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:35,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:35,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:35,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:35,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:35,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:35,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:36:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:36:35,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:35,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:35,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:35,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:36:35,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:35,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:36:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:35,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:35,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:35,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:35,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:35,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:35,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:35,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:36:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:35,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:35,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:35,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:35,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:35,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:36:35,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:35,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:35,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:35,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:35,999 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 07:36:36,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789986946] [2020-09-25 07:36:36,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:36,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:36:36,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864379488] [2020-09-25 07:36:36,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:36:36,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:36,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:36:36,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:36:36,004 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 5 states. [2020-09-25 07:36:36,524 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:36:37,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:37,544 INFO L93 Difference]: Finished difference Result 445 states and 509 transitions. [2020-09-25 07:36:37,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:36:37,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 07:36:37,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:37,549 INFO L225 Difference]: With dead ends: 445 [2020-09-25 07:36:37,549 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 07:36:37,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:36:37,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 07:36:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-25 07:36:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 07:36:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-09-25 07:36:37,592 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 156 [2020-09-25 07:36:37,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:37,593 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-09-25 07:36:37,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:36:37,593 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-09-25 07:36:37,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 07:36:37,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:37,595 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] [2020-09-25 07:36:37,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:36:37,595 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:37,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:37,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1224764540, now seen corresponding path program 1 times [2020-09-25 07:36:37,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:37,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294517919] [2020-09-25 07:36:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:37,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:37,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:38,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:39,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:40,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:40,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:40,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:42,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:42,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 07:36:42,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:36:42,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 07:36:42,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:42,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:36:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:36:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:36:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:43,117 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:43,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:43,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 07:36:43,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:43,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:43,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:43,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:43,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:43,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:43,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:43,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:43,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:43,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:43,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:43,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:43,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:43,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:43,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:43,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:43,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:43,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:43,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:36:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:36:43,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:43,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:43,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:43,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:43,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:43,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:36:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:36:43,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:36:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:36:43,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:36:43,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:36:43,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:36:43,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:43,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:36:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:36:43,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:36:43,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:36:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:36:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:36:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:43,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:36:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:43,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:36:43,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:36:43,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:36:43,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:36:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:43,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:43,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:36:43,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 07:36:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:43,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:43,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:43,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:43,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:43,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:43,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:43,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:36:43,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:43,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:43,621 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 07:36:43,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294517919] [2020-09-25 07:36:43,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:43,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:36:43,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333331512] [2020-09-25 07:36:43,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:36:43,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:43,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:36:43,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:36:43,626 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 8 states. [2020-09-25 07:36:44,266 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:36:45,698 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:36:46,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:46,493 INFO L93 Difference]: Finished difference Result 625 states and 739 transitions. [2020-09-25 07:36:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:36:46,493 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 169 [2020-09-25 07:36:46,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:46,500 INFO L225 Difference]: With dead ends: 625 [2020-09-25 07:36:46,500 INFO L226 Difference]: Without dead ends: 486 [2020-09-25 07:36:46,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:36:46,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-25 07:36:46,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 359. [2020-09-25 07:36:46,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-25 07:36:46,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 385 transitions. [2020-09-25 07:36:46,560 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 385 transitions. Word has length 169 [2020-09-25 07:36:46,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:46,560 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 385 transitions. [2020-09-25 07:36:46,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:36:46,560 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 385 transitions. [2020-09-25 07:36:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 07:36:46,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:46,563 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] [2020-09-25 07:36:46,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:36:46,564 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:46,564 INFO L82 PathProgramCache]: Analyzing trace with hash -984286957, now seen corresponding path program 1 times [2020-09-25 07:36:46,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:46,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309918790] [2020-09-25 07:36:46,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:46,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:47,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:47,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:48,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:49,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:51,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:51,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 07:36:51,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:36:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 07:36:51,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:51,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:36:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:36:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:36:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:51,956 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:36:51,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:36:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:51,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:36:52,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 07:36:52,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:52,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:52,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:52,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:36:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:52,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:52,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:52,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:36:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:52,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:52,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:52,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:52,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:52,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:36:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:52,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:52,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:52,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:52,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:36:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:52,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:36:52,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:52,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:52,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:36:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:36:52,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:52,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:52,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:52,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:36:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:36:52,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:36:52,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 07:36:52,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:52,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:36:52,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:52,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:36:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:36:52,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:36:52,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:36:52,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:52,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:36:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:36:52,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:36:52,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:36:52,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:52,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:36:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:36:52,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:36:52,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:36:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:36:52,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:52,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:36:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:36:52,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:36:52,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:52,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:36:52,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:36:52,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 07:36:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:52,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:36:52,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:36:52,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:36:52,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:52,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 07:36:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:52,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:52,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:36:52,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:36:52,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:36:52,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:36:52,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:36:52,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:36:52,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:36:52,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:36:52,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:36:52,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:36:52,455 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 07:36:52,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309918790] [2020-09-25 07:36:52,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:36:52,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:36:52,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144050800] [2020-09-25 07:36:52,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:36:52,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:36:52,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:36:52,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:36:52,458 INFO L87 Difference]: Start difference. First operand 359 states and 385 transitions. Second operand 10 states. [2020-09-25 07:36:52,998 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:36:54,504 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:36:54,781 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:36:55,124 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:36:55,419 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:36:55,709 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:36:56,039 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:36:56,330 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:36:56,633 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:36:57,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:36:57,838 INFO L93 Difference]: Finished difference Result 489 states and 572 transitions. [2020-09-25 07:36:57,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 07:36:57,839 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-25 07:36:57,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:36:57,846 INFO L225 Difference]: With dead ends: 489 [2020-09-25 07:36:57,846 INFO L226 Difference]: Without dead ends: 486 [2020-09-25 07:36:57,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:36:57,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-25 07:36:57,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 359. [2020-09-25 07:36:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-25 07:36:57,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 384 transitions. [2020-09-25 07:36:57,936 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 384 transitions. Word has length 193 [2020-09-25 07:36:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:36:57,936 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 384 transitions. [2020-09-25 07:36:57,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:36:57,937 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 384 transitions. [2020-09-25 07:36:57,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 07:36:57,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:36:57,939 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] [2020-09-25 07:36:57,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:36:57,940 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:36:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:36:57,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1132097966, now seen corresponding path program 1 times [2020-09-25 07:36:57,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:36:57,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003892784] [2020-09-25 07:36:57,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:36:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:36:58,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:36:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking...