/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_spec1_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:27:03,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:27:03,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:27:03,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:27:03,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:27:03,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:27:03,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:27:03,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:27:03,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:27:03,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:27:03,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:27:03,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:27:03,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:27:03,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:27:03,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:27:03,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:27:03,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:27:03,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:27:03,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:27:03,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:27:03,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:27:03,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:27:03,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:27:03,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:27:03,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:27:03,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:27:03,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:27:03,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:27:03,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:27:03,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:27:03,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:27:03,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:27:03,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:27:03,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:27:03,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:27:03,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:27:03,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:27:03,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:27:03,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:27:03,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:27:03,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:27:03,701 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 07:27:03,746 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:27:03,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:27:03,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:27:03,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:27:03,749 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:27:03,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:27:03,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:27:03,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:27:03,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:27:03,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:27:03,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:27:03,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:27:03,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:27:03,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:27:03,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:27:03,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:27:03,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:27:03,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:27:03,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:27:03,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:27:03,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:27:03,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:27:03,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:27:03,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:27:03,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:27:03,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:27:03,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:27:03,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:27:03,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:27:03,756 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 07:27:04,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:27:04,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:27:04,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:27:04,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:27:04,258 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:27:04,259 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-25 07:27:04,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e552f83b0/a2558016308a48e890a577c4f431fe9c/FLAGa779e5f6d [2020-09-25 07:27:04,976 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:27:04,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-09-25 07:27:04,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e552f83b0/a2558016308a48e890a577c4f431fe9c/FLAGa779e5f6d [2020-09-25 07:27:05,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e552f83b0/a2558016308a48e890a577c4f431fe9c [2020-09-25 07:27:05,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:27:05,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:27:05,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:05,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:27:05,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:27:05,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:05" (1/1) ... [2020-09-25 07:27:05,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb1716d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:05, skipping insertion in model container [2020-09-25 07:27:05,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:05" (1/1) ... [2020-09-25 07:27:05,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:27:05,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:27:05,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:05,820 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:27:05,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:06,038 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:27:06,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06 WrapperNode [2020-09-25 07:27:06,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:06,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:27:06,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:27:06,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:27:06,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (1/1) ... [2020-09-25 07:27:06,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:27:06,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:27:06,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:27:06,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:27:06,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (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 07:27:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:27:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:27:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:27:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:27:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:27:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:27:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:27:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:27:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:27:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:27:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:27:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:27:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:27:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:27:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:27:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:27:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:27:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:27:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:27:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:27:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:27:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:27:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:27:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:27:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:27:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:27:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:27:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:27:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:27:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:27:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:27:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:27:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:27:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:27:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:27:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:27:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:27:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:27:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:27:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:27:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:27:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:27:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:27:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:27:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:27:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:27:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:27:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:27:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:27:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:27:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:27:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:27:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:27:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:27:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:27:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:27:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:27:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:27:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:27:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:27:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:27:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:27:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:27:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:27:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:27:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:27:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:27:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:27:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:27:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:27:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:27:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:27:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:27:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:27:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:27:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:27:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:27:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:27:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 07:27:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:27:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:27:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:27:07,502 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:27:07,502 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:27:07,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:07 BoogieIcfgContainer [2020-09-25 07:27:07,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:27:07,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:27:07,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:27:07,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:27:07,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:27:05" (1/3) ... [2020-09-25 07:27:07,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f268a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:07, skipping insertion in model container [2020-09-25 07:27:07,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:06" (2/3) ... [2020-09-25 07:27:07,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f268a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:07, skipping insertion in model container [2020-09-25 07:27:07,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:07" (3/3) ... [2020-09-25 07:27:07,521 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2020-09-25 07:27:07,536 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:27:07,549 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:27:07,574 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:27:07,613 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:27:07,613 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:27:07,613 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:27:07,613 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:27:07,613 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:27:07,614 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:27:07,614 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:27:07,614 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:27:07,644 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 07:27:07,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:27:07,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:07,664 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 07:27:07,665 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:07,673 INFO L82 PathProgramCache]: Analyzing trace with hash 2110022022, now seen corresponding path program 1 times [2020-09-25 07:27:07,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:07,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608238866] [2020-09-25 07:27:07,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:08,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:08,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:08,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:09,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:10,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:13,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:27:13,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:13,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:27:13,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:13,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:13,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:13,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:27:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:13,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:27:13,631 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:13,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:13,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:13,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:13,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:13,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 07:27:13,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:13,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:13,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:13,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:13,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:13,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:13,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:13,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:13,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:13,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:13,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:13,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:13,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:13,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:13,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:13,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:13,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:13,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:13,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:13,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:13,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:13,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:13,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:13,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:13,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:13,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:13,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:13,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:13,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:13,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:27:13,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:13,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:13,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:13,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:13,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:13,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:13,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:13,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:13,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:13,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:13,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:13,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:13,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:27:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:13,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:13,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:13,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:13,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:13,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:13,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:13,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:13,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:13,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:27:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:13,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:13,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:13,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:13,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:13,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:13,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:13,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:13,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:13,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:13,954 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 07:27:13,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608238866] [2020-09-25 07:27:13,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:13,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:27:13,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753599952] [2020-09-25 07:27:13,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:27:13,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:13,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:27:13,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:27:13,987 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-25 07:27:15,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:15,618 INFO L93 Difference]: Finished difference Result 487 states and 582 transitions. [2020-09-25 07:27:15,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:27:15,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:27:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:15,648 INFO L225 Difference]: With dead ends: 487 [2020-09-25 07:27:15,649 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 07:27:15,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:27:15,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 07:27:15,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 259. [2020-09-25 07:27:15,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 07:27:15,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 283 transitions. [2020-09-25 07:27:15,804 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 283 transitions. Word has length 142 [2020-09-25 07:27:15,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:15,805 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 283 transitions. [2020-09-25 07:27:15,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:27:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 283 transitions. [2020-09-25 07:27:15,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:27:15,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:15,811 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 07:27:15,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:27:15,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:15,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:15,812 INFO L82 PathProgramCache]: Analyzing trace with hash 2094249122, now seen corresponding path program 1 times [2020-09-25 07:27:15,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:15,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890642165] [2020-09-25 07:27:15,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:15,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:16,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:16,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:17,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:17,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:20,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:20,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:27:20,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:27:20,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 07:27:20,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:20,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:20,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:20,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 07:27:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 07:27:20,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:21,198 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:21,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:21,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:21,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:21,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:21,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 07:27:21,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:21,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:21,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:27:21,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:21,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:21,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:21,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:21,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:21,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:21,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:21,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:21,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:21,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:21,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:21,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:21,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:21,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:21,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:21,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:21,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:21,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:21,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:21,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:21,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:21,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:21,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:21,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:21,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:21,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:27:21,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:21,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:21,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:21,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:21,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:21,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:21,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:21,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:21,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:21,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:21,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:27:21,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:21,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:21,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:21,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:21,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:21,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:21,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:27:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:21,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:21,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:21,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:21,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:21,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:21,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:21,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:21,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:21,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:21,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:27:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:21,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:21,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:21,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:21,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:21,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:21,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:21,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:21,665 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 07:27:21,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890642165] [2020-09-25 07:27:21,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:21,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:27:21,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641133315] [2020-09-25 07:27:21,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:27:21,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:21,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:27:21,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:27:21,675 INFO L87 Difference]: Start difference. First operand 259 states and 283 transitions. Second operand 4 states. [2020-09-25 07:27:22,151 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:23,167 INFO L93 Difference]: Finished difference Result 451 states and 523 transitions. [2020-09-25 07:27:23,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:27:23,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:27:23,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:23,181 INFO L225 Difference]: With dead ends: 451 [2020-09-25 07:27:23,181 INFO L226 Difference]: Without dead ends: 302 [2020-09-25 07:27:23,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 07:27:23,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-25 07:27:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 259. [2020-09-25 07:27:23,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 07:27:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-09-25 07:27:23,245 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 143 [2020-09-25 07:27:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:23,246 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-09-25 07:27:23,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:27:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-09-25 07:27:23,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 07:27:23,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:23,250 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] [2020-09-25 07:27:23,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:27:23,251 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:23,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:23,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1557492172, now seen corresponding path program 1 times [2020-09-25 07:27:23,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:23,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389731217] [2020-09-25 07:27:23,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:23,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:23,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:25,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:25,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:25,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:26,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:27:28,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:27:28,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 07:27:28,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:27:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:27:28,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,633 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:28,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 07:27:28,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:28,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:28,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:28,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:28,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:28,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:28,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:28,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:28,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:28,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:28,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:28,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:28,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:28,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:28,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:28,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:28,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:27:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:27:28,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:27:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:27:28,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:27:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:27:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:27:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:27:28,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:27:28,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:27:28,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:27:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:27:28,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:27:28,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:28,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:28,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:28,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 07:27:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:28,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:28,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 07:27:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:28,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:28,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:28,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:28,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:28,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:28,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:28,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:28,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:28,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:28,982 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 07:27:28,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389731217] [2020-09-25 07:27:28,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:28,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:27:28,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087422224] [2020-09-25 07:27:28,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:27:28,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:28,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:27:28,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:27:28,987 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 6 states. [2020-09-25 07:27:29,481 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:30,946 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:32,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:32,439 INFO L93 Difference]: Finished difference Result 624 states and 752 transitions. [2020-09-25 07:27:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:27:32,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 07:27:32,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:32,446 INFO L225 Difference]: With dead ends: 624 [2020-09-25 07:27:32,446 INFO L226 Difference]: Without dead ends: 475 [2020-09-25 07:27:32,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:27:32,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-09-25 07:27:32,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 392. [2020-09-25 07:27:32,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2020-09-25 07:27:32,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 437 transitions. [2020-09-25 07:27:32,515 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 437 transitions. Word has length 165 [2020-09-25 07:27:32,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:32,516 INFO L479 AbstractCegarLoop]: Abstraction has 392 states and 437 transitions. [2020-09-25 07:27:32,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:27:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 437 transitions. [2020-09-25 07:27:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 07:27:32,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:32,520 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] [2020-09-25 07:27:32,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:27:32,520 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:32,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:32,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1743806029, now seen corresponding path program 1 times [2020-09-25 07:27:32,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:32,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998934052] [2020-09-25 07:27:32,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:32,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:32,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:32,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 07:27:37,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:27:37,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 07:27:37,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:37,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:27:37,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:27:37,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:37,849 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:37,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:37,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:37,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:37,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:37,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:37,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 07:27:37,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:37,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:37,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:38,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:38,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:38,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:38,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:38,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:38,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:38,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:38,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:38,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:27:38,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 07:27:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:27:38,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:27:38,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 07:27:38,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 07:27:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:27:38,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:27:38,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-25 07:27:38,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:27:38,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:27:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 07:27:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:27:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:27:38,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:27:38,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:27:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:38,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:38,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:38,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 07:27:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:38,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:38,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 07:27:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:38,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:38,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:38,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:38,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:38,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:38,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:38,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:38,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:27:38,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:38,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:38,909 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 07:27:38,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998934052] [2020-09-25 07:27:38,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:38,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:27:38,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354142509] [2020-09-25 07:27:38,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:27:38,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:38,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:27:38,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:27:38,912 INFO L87 Difference]: Start difference. First operand 392 states and 437 transitions. Second operand 5 states. [2020-09-25 07:27:39,634 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:27:40,752 INFO L93 Difference]: Finished difference Result 640 states and 719 transitions. [2020-09-25 07:27:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:27:40,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 180 [2020-09-25 07:27:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:27:40,756 INFO L225 Difference]: With dead ends: 640 [2020-09-25 07:27:40,757 INFO L226 Difference]: Without dead ends: 418 [2020-09-25 07:27:40,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:27:40,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-09-25 07:27:40,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 365. [2020-09-25 07:27:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 07:27:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 394 transitions. [2020-09-25 07:27:40,828 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 394 transitions. Word has length 180 [2020-09-25 07:27:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:27:40,829 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 394 transitions. [2020-09-25 07:27:40,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:27:40,830 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 394 transitions. [2020-09-25 07:27:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 07:27:40,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:40,833 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] [2020-09-25 07:27:40,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:27:40,833 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:40,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:40,833 INFO L82 PathProgramCache]: Analyzing trace with hash -597783407, now seen corresponding path program 1 times [2020-09-25 07:27:40,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:40,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934930721] [2020-09-25 07:27:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:40,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:41,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:43,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:43,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:43,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:44,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:45,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:45,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 07:27:45,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:27:45,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:27:45,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:45,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:45,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:27:45,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 07:27:45,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:27:45,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,241 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:27:46,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:27:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:27:46,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 07:27:46,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:27:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:46,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:46,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:27:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:46,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:46,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:27:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:46,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:27:46,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:46,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:27:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:46,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:46,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:27:46,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:46,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:27:46,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:27:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:46,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:46,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:27:47,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:27:47,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-25 07:27:47,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:47,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:27:47,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:47,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:27:47,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:27:47,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-09-25 07:27:47,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:47,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:27:47,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:47,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:27:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:47,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:47,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:48,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:48,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:27:48,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:27:48,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 07:27:48,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:48,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:27:48,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:48,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:27:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:48,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:48,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:48,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:27:48,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:48,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:27:48,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:48,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:27:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:48,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:27:48,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:48,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:27:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:48,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:48,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:48,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:27:48,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:48,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:48,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:48,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:48,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:48,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:48,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:27:48,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:48,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 07:27:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:48,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:48,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:48,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:48,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:48,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:27:48,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:48,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:27:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:48,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:48,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:48,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 07:27:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:48,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:48,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:27:48,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:27:48,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:27:48,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:27:48,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:27:48,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:27:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:27:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:27:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:27:48,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:27:48,132 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 07:27:48,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934930721] [2020-09-25 07:27:48,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:27:48,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:27:48,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785943489] [2020-09-25 07:27:48,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:27:48,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:27:48,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:27:48,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:27:48,135 INFO L87 Difference]: Start difference. First operand 365 states and 394 transitions. Second operand 9 states. [2020-09-25 07:27:48,741 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:27:50,380 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:27:50,683 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:27:51,067 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190