/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_spec5_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:10:09,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:10:09,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:10:09,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:10:09,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:10:09,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:10:09,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:10:09,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:10:09,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:10:09,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:10:09,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:10:09,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:10:09,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:10:09,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:10:09,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:10:09,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:10:09,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:10:09,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:10:09,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:10:09,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:10:09,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:10:09,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:10:09,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:10:09,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:10:09,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:10:09,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:10:09,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:10:09,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:10:09,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:10:09,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:10:09,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:10:09,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:10:09,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:10:09,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:10:09,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:10:09,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:10:09,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:10:09,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:10:09,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:10:09,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:10:09,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:10:09,365 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 12:10:09,392 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:10:09,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:10:09,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:10:09,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:10:09,394 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:10:09,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:10:09,394 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:10:09,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:10:09,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:10:09,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:10:09,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:10:09,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:10:09,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:10:09,395 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:10:09,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:10:09,396 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:10:09,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:10:09,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:10:09,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:10:09,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:10:09,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:10:09,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:10:09,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:10:09,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:10:09,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:10:09,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:10:09,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:10:09,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:10:09,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:10:09,399 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:10:09,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:10:09,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:10:09,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:10:09,883 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:10:09,884 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:10:09,885 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-09-25 12:10:09,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/016005b14/cce5b36d3f2242a8bbebabe2d7b2b787/FLAG05c5bbb4a [2020-09-25 12:10:10,625 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:10:10,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-09-25 12:10:10,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/016005b14/cce5b36d3f2242a8bbebabe2d7b2b787/FLAG05c5bbb4a [2020-09-25 12:10:10,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/016005b14/cce5b36d3f2242a8bbebabe2d7b2b787 [2020-09-25 12:10:10,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:10:10,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:10:10,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:10:10,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:10:10,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:10:10,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:10:10" (1/1) ... [2020-09-25 12:10:10,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:10, skipping insertion in model container [2020-09-25 12:10:10,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:10:10" (1/1) ... [2020-09-25 12:10:10,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:10:10,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:10:11,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:10:11,350 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:10:11,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:10:11,611 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:10:11,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11 WrapperNode [2020-09-25 12:10:11,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:10:11,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:10:11,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:10:11,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:10:11,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (1/1) ... [2020-09-25 12:10:11,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (1/1) ... [2020-09-25 12:10:11,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (1/1) ... [2020-09-25 12:10:11,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (1/1) ... [2020-09-25 12:10:11,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (1/1) ... [2020-09-25 12:10:11,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (1/1) ... [2020-09-25 12:10:11,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (1/1) ... [2020-09-25 12:10:11,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:10:11,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:10:11,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:10:11,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:10:11,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (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 12:10:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:10:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:10:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:10:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:10:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:10:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:10:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:10:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:10:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:10:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:10:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 12:10:11,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 12:10:11,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 12:10:11,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:10:11,845 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:10:11,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:10:11,845 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:10:11,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:10:11,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:10:11,846 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:10:11,846 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:10:11,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:10:11,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:10:11,847 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:10:11,847 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:10:11,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:10:11,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:10:11,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:10:11,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:10:11,848 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:10:11,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:10:11,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:10:11,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:10:11,848 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:10:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:10:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:10:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:10:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:10:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:10:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:10:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:10:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:10:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:10:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:10:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:10:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:10:11,851 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:10:11,851 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:10:11,851 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:10:11,851 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:10:11,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:10:11,852 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:10:11,852 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:10:11,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 12:10:11,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 12:10:11,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 12:10:11,852 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:10:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:10:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:10:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:10:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:10:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:10:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:10:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:10:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:10:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:10:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:10:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:10:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:10:11,854 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:10:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:10:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:10:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 12:10:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:10:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:10:11,855 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:10:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:10:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:10:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:10:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:10:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:10:11,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:10:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:10:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:10:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:10:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:10:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:10:11,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:10:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:10:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:10:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:10:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:10:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:10:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:10:13,060 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:10:13,061 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:10:13,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:10:13 BoogieIcfgContainer [2020-09-25 12:10:13,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:10:13,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:10:13,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:10:13,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:10:13,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:10:10" (1/3) ... [2020-09-25 12:10:13,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cea7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:10:13, skipping insertion in model container [2020-09-25 12:10:13,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:10:11" (2/3) ... [2020-09-25 12:10:13,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cea7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:10:13, skipping insertion in model container [2020-09-25 12:10:13,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:10:13" (3/3) ... [2020-09-25 12:10:13,086 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2020-09-25 12:10:13,101 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:10:13,115 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:10:13,143 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:10:13,189 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:10:13,189 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:10:13,189 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:10:13,190 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:10:13,190 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:10:13,190 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:10:13,190 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:10:13,191 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:10:13,234 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 12:10:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 12:10:13,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:13,272 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:10:13,273 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:13,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:13,284 INFO L82 PathProgramCache]: Analyzing trace with hash -749536702, now seen corresponding path program 1 times [2020-09-25 12:10:13,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:13,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601007754] [2020-09-25 12:10:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:13,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:14,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:14,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:14,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:16,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:18,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:18,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 12:10:18,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:10:18,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-25 12:10:18,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:18,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 12:10:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 12:10:18,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 12:10:19,294 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:19,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:19,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-25 12:10:19,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:19,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:10:19,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:19,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:19,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:19,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:19,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:19,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:19,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:19,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:10:19,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:19,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:19,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:19,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:19,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:19,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:19,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:19,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:10:19,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:10:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:19,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:10:19,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:10:19,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:19,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:19,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:19,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:19,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 12:10:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:19,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:19,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:19,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:19,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 12:10:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:19,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:19,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:19,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:19,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:19,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:19,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:19,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:19,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:19,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:19,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:19,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:10:19,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601007754] [2020-09-25 12:10:19,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:19,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:10:19,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609182992] [2020-09-25 12:10:19,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:10:19,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:19,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:10:19,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:10:19,923 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 5 states. [2020-09-25 12:10:20,541 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:10:21,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:10:21,711 INFO L93 Difference]: Finished difference Result 495 states and 579 transitions. [2020-09-25 12:10:21,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:10:21,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-09-25 12:10:21,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:10:21,733 INFO L225 Difference]: With dead ends: 495 [2020-09-25 12:10:21,733 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 12:10:21,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:10:21,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 12:10:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-25 12:10:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 12:10:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-09-25 12:10:21,849 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 160 [2020-09-25 12:10:21,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:10:21,850 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-09-25 12:10:21,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:10:21,851 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-09-25 12:10:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 12:10:21,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:21,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:10:21,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:10:21,856 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:21,856 INFO L82 PathProgramCache]: Analyzing trace with hash -443494427, now seen corresponding path program 1 times [2020-09-25 12:10:21,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:21,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69487468] [2020-09-25 12:10:21,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:21,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:22,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:22,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:24,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:24,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:24,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:26,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:26,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-25 12:10:26,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:10:26,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:10:26,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:26,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:26,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:10:26,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:10:26,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 12:10:26,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,255 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:27,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:27,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 12:10:27,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:10:27,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:27,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:27,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:27,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:27,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:27,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:10:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:27,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:27,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:27,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:27,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:27,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:27,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:27,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:27,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:27,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:10:27,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:10:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:27,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:10:27,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:27,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:10:27,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:27,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:27,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:27,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:27,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:10:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:10:27,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:10:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:10:27,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:10:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:10:27,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:10:27,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:10:27,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:10:27,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:10:27,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:27,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:10:27,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 12:10:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:27,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-25 12:10:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:27,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:27,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:27,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:27,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:27,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:27,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:27,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:27,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:27,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:10:27,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69487468] [2020-09-25 12:10:27,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:27,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:10:27,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465047078] [2020-09-25 12:10:27,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:10:27,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:27,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:10:27,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:10:27,799 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 7 states. [2020-09-25 12:10:28,338 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:10:30,159 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:10:30,982 INFO L93 Difference]: Finished difference Result 646 states and 771 transitions. [2020-09-25 12:10:30,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 12:10:30,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-09-25 12:10:30,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:10:31,003 INFO L225 Difference]: With dead ends: 646 [2020-09-25 12:10:31,003 INFO L226 Difference]: Without dead ends: 493 [2020-09-25 12:10:31,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:10:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-09-25 12:10:31,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 407. [2020-09-25 12:10:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-09-25 12:10:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 455 transitions. [2020-09-25 12:10:31,087 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 455 transitions. Word has length 183 [2020-09-25 12:10:31,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:10:31,088 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 455 transitions. [2020-09-25 12:10:31,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:10:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 455 transitions. [2020-09-25 12:10:31,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 12:10:31,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:31,091 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:10:31,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:10:31,092 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:31,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:31,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1600222007, now seen corresponding path program 1 times [2020-09-25 12:10:31,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:31,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006635535] [2020-09-25 12:10:31,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:31,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:31,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:32,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 12:10:36,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:10:36,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 12:10:36,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:36,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 12:10:36,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:10:36,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-25 12:10:36,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:10:36,589 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:36,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:36,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:36,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:36,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 12:10:36,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:36,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:36,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:10:36,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:36,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:36,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:36,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:36,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:36,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:36,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:36,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:36,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:36,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:36,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:36,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:36,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:36,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:36,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:36,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:36,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:10:36,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:36,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:36,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:36,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:36,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:36,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:36,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:36,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:36,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:36,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:36,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:36,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:36,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:36,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:36,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:36,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:36,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:36,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:36,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:10:36,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:36,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:10:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:36,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:36,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:36,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:10:36,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:10:36,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:36,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:36,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:36,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:36,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:36,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:36,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:10:36,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:36,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:37,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:10:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:37,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:37,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 12:10:37,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:10:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 12:10:37,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:37,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:10:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 12:10:37,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:37,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:37,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:37,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 12:10:37,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:37,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 12:10:37,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:37,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:10:37,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:10:37,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 12:10:37,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:37,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:37,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:37,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:10:37,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:10:37,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:37,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 12:10:37,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:37,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:10:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:37,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:37,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:10:37,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:37,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:37,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:37,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:37,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:37,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:37,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:37,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:10:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:37,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:37,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:37,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:37,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:37,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:37,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:37,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:37,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 12:10:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:37,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:37,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:37,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:37,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:37,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:37,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:37,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 12:10:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:37,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:37,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:37,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:37,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:10:37,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:37,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:37,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 12:10:37,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006635535] [2020-09-25 12:10:37,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:37,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:10:37,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777018126] [2020-09-25 12:10:37,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:10:37,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:37,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:10:37,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:10:37,433 INFO L87 Difference]: Start difference. First operand 407 states and 455 transitions. Second operand 10 states. [2020-09-25 12:10:37,926 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:38,663 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:10:39,021 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:10:40,223 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:10:40,530 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:10:40,987 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:10:41,521 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:10:41,862 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 12:10:42,156 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 12:10:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:10:42,917 INFO L93 Difference]: Finished difference Result 774 states and 914 transitions. [2020-09-25 12:10:42,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 12:10:42,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2020-09-25 12:10:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:10:42,926 INFO L225 Difference]: With dead ends: 774 [2020-09-25 12:10:42,926 INFO L226 Difference]: Without dead ends: 482 [2020-09-25 12:10:42,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 12:10:42,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-25 12:10:42,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 406. [2020-09-25 12:10:42,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2020-09-25 12:10:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 452 transitions. [2020-09-25 12:10:42,996 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 452 transitions. Word has length 207 [2020-09-25 12:10:42,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:10:42,997 INFO L479 AbstractCegarLoop]: Abstraction has 406 states and 452 transitions. [2020-09-25 12:10:42,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:10:42,997 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 452 transitions. [2020-09-25 12:10:43,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 12:10:43,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:43,000 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:10:43,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:10:43,001 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:43,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:43,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1505316662, now seen corresponding path program 1 times [2020-09-25 12:10:43,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:43,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51153231] [2020-09-25 12:10:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:43,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:43,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:43,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 12:10:43,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:43,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 854 [2020-09-25 12:10:43,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:43,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 12:10:43,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:10:43,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:44,232 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:44,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:44,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 12:10:44,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:44,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:44,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:44,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:44,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:44,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:44,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:44,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:44,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:44,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:44,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:10:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:44,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:44,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:44,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:44,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:10:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:10:44,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 12:10:44,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:44,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 12:10:44,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:10:44,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:10:44,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 12:10:44,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:10:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 12:10:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:10:44,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:10:44,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 12:10:44,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 12:10:44,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:10:44,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:10:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:10:44,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:44,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:44,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:10:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:44,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:44,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 12:10:44,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 12:10:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:44,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:44,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 12:10:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:44,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:44,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:44,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:44,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:44,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:44,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:44,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:44,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:44,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:44,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:44,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:10:44,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51153231] [2020-09-25 12:10:44,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:44,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:10:44,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711021692] [2020-09-25 12:10:44,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:10:44,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:44,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:10:44,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:10:44,996 INFO L87 Difference]: Start difference. First operand 406 states and 452 transitions. Second operand 10 states. [2020-09-25 12:10:46,593 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:46,904 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:10:47,259 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:10:47,572 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:10:47,902 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 12:10:48,193 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:10:49,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:10:49,132 INFO L93 Difference]: Finished difference Result 775 states and 908 transitions. [2020-09-25 12:10:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:10:49,137 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-09-25 12:10:49,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:10:49,142 INFO L225 Difference]: With dead ends: 775 [2020-09-25 12:10:49,143 INFO L226 Difference]: Without dead ends: 484 [2020-09-25 12:10:49,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:10:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-09-25 12:10:49,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 414. [2020-09-25 12:10:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-09-25 12:10:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 460 transitions. [2020-09-25 12:10:49,190 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 460 transitions. Word has length 208 [2020-09-25 12:10:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:10:49,191 INFO L479 AbstractCegarLoop]: Abstraction has 414 states and 460 transitions. [2020-09-25 12:10:49,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:10:49,191 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 460 transitions. [2020-09-25 12:10:49,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 12:10:49,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:49,195 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:10:49,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:10:49,195 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:49,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1630521046, now seen corresponding path program 1 times [2020-09-25 12:10:49,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:49,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932102952] [2020-09-25 12:10:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:49,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 12:10:50,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-09-25 12:10:50,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 12:10:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:10:50,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,279 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:50,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:50,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 12:10:50,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:50,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:10:50,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:50,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:10:50,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:50,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:50,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:10:50,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:50,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:50,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:50,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:10:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:50,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:50,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:50,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:10:50,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:10:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:10:50,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 12:10:50,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 12:10:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:10:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:50,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:10:50,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 12:10:50,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:10:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:10:50,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:10:50,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 12:10:50,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:10:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:10:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:10:50,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:10:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:10:50,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:50,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:10:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:50,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:10:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:50,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:50,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 12:10:50,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 12:10:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:50,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:50,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:50,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 12:10:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:50,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:50,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:50,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:50,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:50,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:50,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:50,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:10:50,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932102952] [2020-09-25 12:10:50,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:50,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:10:50,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301823521] [2020-09-25 12:10:50,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:10:50,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:50,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:10:50,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:10:50,781 INFO L87 Difference]: Start difference. First operand 414 states and 460 transitions. Second operand 9 states. [2020-09-25 12:10:52,098 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:52,403 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:10:52,739 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:53,080 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:10:53,382 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:10:54,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:10:54,467 INFO L93 Difference]: Finished difference Result 794 states and 940 transitions. [2020-09-25 12:10:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:10:54,473 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2020-09-25 12:10:54,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:10:54,476 INFO L225 Difference]: With dead ends: 794 [2020-09-25 12:10:54,477 INFO L226 Difference]: Without dead ends: 495 [2020-09-25 12:10:54,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:10:54,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-25 12:10:54,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 420. [2020-09-25 12:10:54,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-09-25 12:10:54,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 466 transitions. [2020-09-25 12:10:54,529 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 466 transitions. Word has length 208 [2020-09-25 12:10:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:10:54,530 INFO L479 AbstractCegarLoop]: Abstraction has 420 states and 466 transitions. [2020-09-25 12:10:54,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:10:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 466 transitions. [2020-09-25 12:10:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 12:10:54,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:10:54,533 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:10:54,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:10:54,534 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:10:54,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:10:54,534 INFO L82 PathProgramCache]: Analyzing trace with hash -940026905, now seen corresponding path program 1 times [2020-09-25 12:10:54,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:10:54,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005992667] [2020-09-25 12:10:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:10:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:54,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 12:10:56,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1497 [2020-09-25 12:10:56,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:10:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:10:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 12:10:56,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,380 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:10:56,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:10:56,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 12:10:56,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:10:56,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:56,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:10:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:56,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:56,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:56,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:56,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 12:10:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:56,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:56,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:56,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:56,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 12:10:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:56,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:10:56,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:10:56,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:10:56,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 12:10:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:10:56,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:56,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:10:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:10:56,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 12:10:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:56,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:56,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:10:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:10:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:10:56,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:10:56,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:10:56,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:10:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:56,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:56,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:10:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:10:56,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 12:10:56,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 12:10:56,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:10:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:10:56,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 12:10:56,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:10:56,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:10:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:10:56,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:10:56,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:10:56,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:10:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:10:56,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:10:56,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 12:10:56,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:10:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:10:56,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:10:56,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:10:56,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:10:56,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:10:56,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 12:10:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:56,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:56,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:56,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 12:10:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:10:56,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:10:56,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:10:56,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:10:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:10:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:10:56,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:10:56,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:10:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:10:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:10:56,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:10:56,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:10:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:10:56,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005992667] [2020-09-25 12:10:56,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:10:56,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 12:10:56,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919468512] [2020-09-25 12:10:56,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:10:56,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:10:56,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:10:56,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:10:56,994 INFO L87 Difference]: Start difference. First operand 420 states and 466 transitions. Second operand 7 states. [2020-09-25 12:10:57,609 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189