/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:15:21,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:15:21,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:15:21,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:15:21,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:15:21,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:15:21,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:15:21,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:15:21,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:15:21,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:15:21,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:15:21,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:15:21,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:15:21,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:15:21,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:15:21,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:15:21,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:15:21,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:15:21,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:15:21,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:15:21,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:15:21,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:15:21,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:15:21,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:15:21,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:15:21,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:15:21,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:15:21,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:15:21,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:15:21,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:15:21,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:15:21,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:15:21,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:15:21,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:15:21,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:15:21,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:15:21,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:15:21,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:15:21,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:15:21,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:15:21,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:15:21,310 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 [2020-09-24 19:15:21,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:15:21,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:15:21,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:15:21,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:15:21,357 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:15:21,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:15:21,358 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:15:21,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:15:21,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:15:21,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:15:21,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:15:21,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:15:21,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:15:21,360 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:15:21,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:15:21,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:15:21,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:15:21,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:15:21,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:15:21,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:15:21,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:15:21,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:15:21,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:15:21,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:15:21,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:15:21,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:15:21,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:15:21,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:15:21,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:15:21,364 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:15:21,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:15:21,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:15:21,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:15:21,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:15:21,828 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:15:21,829 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-09-24 19:15:21,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9bfb66fc/d1fd302a36b74abcb4949a2ae19610aa/FLAG7542e8968 [2020-09-24 19:15:22,509 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:15:22,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-09-24 19:15:22,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9bfb66fc/d1fd302a36b74abcb4949a2ae19610aa/FLAG7542e8968 [2020-09-24 19:15:22,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9bfb66fc/d1fd302a36b74abcb4949a2ae19610aa [2020-09-24 19:15:22,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:15:22,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:15:22,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:22,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:15:22,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:15:22,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:22" (1/1) ... [2020-09-24 19:15:22,809 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 24.09 07:15:22, skipping insertion in model container [2020-09-24 19:15:22,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:22" (1/1) ... [2020-09-24 19:15:22,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:15:22,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:15:23,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:23,404 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:15:23,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:23,536 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:15:23,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23 WrapperNode [2020-09-24 19:15:23,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:23,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:15:23,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:15:23,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:15:23,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (1/1) ... [2020-09-24 19:15:23,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (1/1) ... [2020-09-24 19:15:23,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (1/1) ... [2020-09-24 19:15:23,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (1/1) ... [2020-09-24 19:15:23,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (1/1) ... [2020-09-24 19:15:23,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (1/1) ... [2020-09-24 19:15:23,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (1/1) ... [2020-09-24 19:15:23,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:15:23,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:15:23,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:15:23,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:15:23,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (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 [2020-09-24 19:15:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:15:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:15:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:15:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:15:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:15:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:15:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:15:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:15:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:15:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:15:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:15:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:15:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:15:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:15:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:15:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:15:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:15:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:15:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:15:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:15:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:15:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:15:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:15:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:15:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:15:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:15:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:15:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:15:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:15:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:15:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:15:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:15:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:15:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:15:23,728 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:15:23,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:15:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:15:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:15:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:15:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:15:23,728 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:15:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:15:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:15:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:15:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:15:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:15:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:15:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:15:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:15:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:15:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:15:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:15:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:15:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:15:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:15:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:15:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:15:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:15:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:15:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:15:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:15:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:15:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:15:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:15:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:15:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:15:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:15:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:15:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:15:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:15:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:15:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:15:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:15:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:15:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:15:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:15:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:15:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:15:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:15:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:15:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:15:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:15:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:15:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:15:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:15:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:15:24,893 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:15:24,893 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:15:24,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:24 BoogieIcfgContainer [2020-09-24 19:15:24,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:15:24,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:15:24,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:15:24,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:15:24,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:15:22" (1/3) ... [2020-09-24 19:15:24,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359e5f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:24, skipping insertion in model container [2020-09-24 19:15:24,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:23" (2/3) ... [2020-09-24 19:15:24,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359e5f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:24, skipping insertion in model container [2020-09-24 19:15:24,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:24" (3/3) ... [2020-09-24 19:15:24,909 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2020-09-24 19:15:24,921 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:15:24,931 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:15:24,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:15:24,988 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:15:24,989 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:15:24,989 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:15:24,989 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:15:24,989 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:15:24,989 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:15:24,990 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:15:24,990 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:15:25,020 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-24 19:15:25,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 19:15:25,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:25,041 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] [2020-09-24 19:15:25,042 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:25,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:25,050 INFO L82 PathProgramCache]: Analyzing trace with hash -68792430, now seen corresponding path program 1 times [2020-09-24 19:15:25,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:25,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755562079] [2020-09-24 19:15:25,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:25,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:25,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 19:15:26,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:26,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1075 [2020-09-24 19:15:26,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:15:26,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 19:15:26,982 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:26,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:27,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-24 19:15:27,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:27,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:27,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:27,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:27,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:27,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:27,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:27,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:27,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:27,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:27,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:15:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:27,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:27,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:27,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:27,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:15:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:27,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:15:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:27,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:27,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:27,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:27,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755562079] [2020-09-24 19:15:27,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:27,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:15:27,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500879320] [2020-09-24 19:15:27,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:15:27,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:27,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:15:27,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:27,487 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 4 states. [2020-09-24 19:15:28,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:28,834 INFO L93 Difference]: Finished difference Result 517 states and 605 transitions. [2020-09-24 19:15:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:15:28,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 19:15:28,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:28,858 INFO L225 Difference]: With dead ends: 517 [2020-09-24 19:15:28,859 INFO L226 Difference]: Without dead ends: 324 [2020-09-24 19:15:28,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:28,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-09-24 19:15:28,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 278. [2020-09-24 19:15:28,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 19:15:28,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 302 transitions. [2020-09-24 19:15:28,995 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 302 transitions. Word has length 160 [2020-09-24 19:15:28,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:28,996 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 302 transitions. [2020-09-24 19:15:28,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:15:28,997 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 302 transitions. [2020-09-24 19:15:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:15:29,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:29,007 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] [2020-09-24 19:15:29,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:15:29,008 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:29,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:29,008 INFO L82 PathProgramCache]: Analyzing trace with hash -891035704, now seen corresponding path program 1 times [2020-09-24 19:15:29,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:29,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402166594] [2020-09-24 19:15:29,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:29,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 19:15:30,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:30,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:15:30,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:15:30,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,486 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:30,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:30,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 19:15:30,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:30,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:30,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:30,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:30,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:30,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:30,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:30,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:30,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:30,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:30,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:15:30,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:15:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:30,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:30,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:30,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:30,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:30,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:15:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:30,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:30,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:30,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:30,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:30,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:30,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402166594] [2020-09-24 19:15:30,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:30,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:15:30,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736707834] [2020-09-24 19:15:30,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:15:30,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:30,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:15:30,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:15:30,820 INFO L87 Difference]: Start difference. First operand 278 states and 302 transitions. Second operand 5 states. [2020-09-24 19:15:31,638 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:32,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:32,834 INFO L93 Difference]: Finished difference Result 442 states and 497 transitions. [2020-09-24 19:15:32,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:15:32,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 19:15:32,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:32,845 INFO L225 Difference]: With dead ends: 442 [2020-09-24 19:15:32,846 INFO L226 Difference]: Without dead ends: 313 [2020-09-24 19:15:32,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:15:32,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-09-24 19:15:32,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 268. [2020-09-24 19:15:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 19:15:32,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 289 transitions. [2020-09-24 19:15:32,917 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 289 transitions. Word has length 161 [2020-09-24 19:15:32,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:32,918 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 289 transitions. [2020-09-24 19:15:32,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:15:32,918 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 289 transitions. [2020-09-24 19:15:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 19:15:32,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:32,921 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] [2020-09-24 19:15:32,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:15:32,922 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:32,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:32,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1936155524, now seen corresponding path program 1 times [2020-09-24 19:15:32,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:32,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966918545] [2020-09-24 19:15:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:33,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:33,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:33,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 19:15:34,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-24 19:15:34,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 19:15:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 19:15:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,353 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:34,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:34,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 19:15:34,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:34,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:34,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:34,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:34,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:34,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:34,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:34,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:34,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:34,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:15:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:34,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:34,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:34,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:34,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:34,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 19:15:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:34,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:34,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 19:15:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:34,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:34,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:34,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966918545] [2020-09-24 19:15:34,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:34,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:15:34,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503021603] [2020-09-24 19:15:34,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:15:34,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:34,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:15:34,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:15:34,654 INFO L87 Difference]: Start difference. First operand 268 states and 289 transitions. Second operand 6 states. [2020-09-24 19:15:35,182 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:36,325 INFO L93 Difference]: Finished difference Result 489 states and 562 transitions. [2020-09-24 19:15:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:15:36,326 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 19:15:36,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:36,331 INFO L225 Difference]: With dead ends: 489 [2020-09-24 19:15:36,331 INFO L226 Difference]: Without dead ends: 336 [2020-09-24 19:15:36,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:15:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-09-24 19:15:36,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 268. [2020-09-24 19:15:36,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 19:15:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 288 transitions. [2020-09-24 19:15:36,372 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 288 transitions. Word has length 174 [2020-09-24 19:15:36,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:36,373 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 288 transitions. [2020-09-24 19:15:36,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:15:36,373 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 288 transitions. [2020-09-24 19:15:36,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 19:15:36,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:36,376 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] [2020-09-24 19:15:36,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:15:36,377 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:36,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:36,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1172327951, now seen corresponding path program 1 times [2020-09-24 19:15:36,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:36,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019340569] [2020-09-24 19:15:36,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:36,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:36,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 19:15:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1067 [2020-09-24 19:15:37,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 19:15:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:15:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,788 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:37,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:37,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 19:15:37,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:37,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:37,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:37,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:37,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:37,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:37,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:37,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:37,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:37,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:37,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:37,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:37,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:37,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:37,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:37,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:37,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:37,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:37,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:38,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:38,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:38,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:38,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:15:38,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:15:38,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:15:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:15:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:15:38,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:15:38,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:15:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:15:38,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:38,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:38,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:38,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:38,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:38,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 19:15:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:38,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:38,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:38,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 19:15:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:38,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:38,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:38,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:38,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019340569] [2020-09-24 19:15:38,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:38,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:15:38,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342815863] [2020-09-24 19:15:38,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:15:38,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:38,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:15:38,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:15:38,223 INFO L87 Difference]: Start difference. First operand 268 states and 288 transitions. Second operand 9 states. [2020-09-24 19:15:38,740 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:40,838 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:41,645 INFO L93 Difference]: Finished difference Result 678 states and 807 transitions. [2020-09-24 19:15:41,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 19:15:41,646 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 187 [2020-09-24 19:15:41,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:41,652 INFO L225 Difference]: With dead ends: 678 [2020-09-24 19:15:41,652 INFO L226 Difference]: Without dead ends: 525 [2020-09-24 19:15:41,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2020-09-24 19:15:41,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-09-24 19:15:41,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 387. [2020-09-24 19:15:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-24 19:15:41,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 419 transitions. [2020-09-24 19:15:41,711 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 419 transitions. Word has length 187 [2020-09-24 19:15:41,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:41,712 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 419 transitions. [2020-09-24 19:15:41,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:15:41,712 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 419 transitions. [2020-09-24 19:15:41,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:15:41,715 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:41,716 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, 1, 1, 1] [2020-09-24 19:15:41,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:15:41,716 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:41,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:41,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1397715062, now seen corresponding path program 1 times [2020-09-24 19:15:41,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:41,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753540301] [2020-09-24 19:15:41,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:42,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:42,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:42,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:42,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 19:15:42,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:42,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-09-24 19:15:42,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:15:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 19:15:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 19:15:42,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:43,146 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:43,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:43,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 19:15:43,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:43,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:43,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:15:43,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:43,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:43,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:43,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:43,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:43,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:43,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:43,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:43,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:43,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:43,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:43,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:43,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:43,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:43,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:43,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:43,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:43,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:43,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:43,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:15:43,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:43,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 19:15:43,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:15:43,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:15:43,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:15:43,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:15:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:43,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:43,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:43,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:43,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:43,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:43,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:15:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:43,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:15:43,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 19:15:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:43,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:43,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:43,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:43,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:15:43,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:43,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:15:43,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753540301] [2020-09-24 19:15:43,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:43,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:15:43,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742683543] [2020-09-24 19:15:43,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:15:43,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:43,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:15:43,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:15:43,836 INFO L87 Difference]: Start difference. First operand 387 states and 419 transitions. Second operand 11 states. [2020-09-24 19:15:44,437 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:45,420 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:45,760 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:15:46,835 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:47,216 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:47,626 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:48,363 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:48,723 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:15:49,040 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:50,010 INFO L93 Difference]: Finished difference Result 796 states and 934 transitions. [2020-09-24 19:15:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 19:15:50,011 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-09-24 19:15:50,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:50,016 INFO L225 Difference]: With dead ends: 796 [2020-09-24 19:15:50,016 INFO L226 Difference]: Without dead ends: 524 [2020-09-24 19:15:50,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-24 19:15:50,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-09-24 19:15:50,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 386. [2020-09-24 19:15:50,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 19:15:50,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 416 transitions. [2020-09-24 19:15:50,075 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 416 transitions. Word has length 211 [2020-09-24 19:15:50,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:50,075 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 416 transitions. [2020-09-24 19:15:50,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:15:50,076 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 416 transitions. [2020-09-24 19:15:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 19:15:50,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:50,079 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, 1, 1, 1, 1] [2020-09-24 19:15:50,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:15:50,080 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:50,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:50,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1577086917, now seen corresponding path program 1 times [2020-09-24 19:15:50,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:50,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305259397] [2020-09-24 19:15:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 19:15:51,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 935 [2020-09-24 19:15:51,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-24 19:15:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:51,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,506 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:51,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:51,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 19:15:51,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:51,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:51,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:51,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:51,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:51,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:51,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:51,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:51,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:51,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:51,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:51,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:51,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:51,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:51,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:51,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:51,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:15:51,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 19:15:51,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:15:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:51,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:15:51,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 19:15:51,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:15:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:51,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:52,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:52,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:52,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:52,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:52,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:52,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 19:15:52,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:52,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:15:52,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:52,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:52,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:52,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:52,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:52,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:52,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:52,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:52,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:52,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:52,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:52,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:52,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:52,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:52,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:15:52,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:52,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:52,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:15:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:52,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:52,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:52,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:52,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:52,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:52,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:52,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:52,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:52,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:52,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:15:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:52,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:52,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:52,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:52,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:52,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:52,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305259397] [2020-09-24 19:15:52,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:52,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:15:52,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663249196] [2020-09-24 19:15:52,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:15:52,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:52,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:15:52,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:15:52,296 INFO L87 Difference]: Start difference. First operand 386 states and 416 transitions. Second operand 11 states. [2020-09-24 19:15:53,803 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:54,097 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:54,420 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:54,738 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:55,062 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:15:55,364 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:56,504 INFO L93 Difference]: Finished difference Result 797 states and 930 transitions. [2020-09-24 19:15:56,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:15:56,505 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 212 [2020-09-24 19:15:56,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:56,509 INFO L225 Difference]: With dead ends: 797 [2020-09-24 19:15:56,510 INFO L226 Difference]: Without dead ends: 526 [2020-09-24 19:15:56,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:15:56,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-24 19:15:56,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 394. [2020-09-24 19:15:56,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-24 19:15:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 424 transitions. [2020-09-24 19:15:56,581 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 424 transitions. Word has length 212 [2020-09-24 19:15:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:56,582 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 424 transitions. [2020-09-24 19:15:56,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:15:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 424 transitions. [2020-09-24 19:15:56,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 19:15:56,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:56,588 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, 1, 1, 1, 1] [2020-09-24 19:15:56,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:15:56,588 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:56,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1702291301, now seen corresponding path program 1 times [2020-09-24 19:15:56,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:56,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965758636] [2020-09-24 19:15:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:56,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 19:15:57,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 829 [2020-09-24 19:15:57,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 19:15:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:57,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,772 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:57,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:57,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 19:15:57,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:57,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:57,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:57,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:57,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:57,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:58,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:58,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:58,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:58,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:58,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:58,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:58,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:58,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:58,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:15:58,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 19:15:58,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:58,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:15:58,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:58,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:15:58,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 19:15:58,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:58,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:58,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:58,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:58,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 19:15:58,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:58,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:15:58,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:58,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:58,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:58,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:58,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:58,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:58,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:58,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:58,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:58,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:15:58,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:58,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:58,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:15:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:58,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:58,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:58,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:58,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:58,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:58,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:15:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:58,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:58,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:58,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:58,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:58,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:58,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:58,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965758636] [2020-09-24 19:15:58,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:58,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:15:58,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880692082] [2020-09-24 19:15:58,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:15:58,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:58,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:15:58,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:15:58,386 INFO L87 Difference]: Start difference. First operand 394 states and 424 transitions. Second operand 10 states. [2020-09-24 19:15:59,643 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:59,944 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:00,245 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:00,546 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:00,826 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:16:01,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:01,974 INFO L93 Difference]: Finished difference Result 816 states and 961 transitions. [2020-09-24 19:16:01,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:16:01,975 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-24 19:16:01,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:01,978 INFO L225 Difference]: With dead ends: 816 [2020-09-24 19:16:01,978 INFO L226 Difference]: Without dead ends: 537 [2020-09-24 19:16:01,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:16:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-09-24 19:16:02,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 400. [2020-09-24 19:16:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-09-24 19:16:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 430 transitions. [2020-09-24 19:16:02,027 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 430 transitions. Word has length 212 [2020-09-24 19:16:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:02,028 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 430 transitions. [2020-09-24 19:16:02,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:16:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 430 transitions. [2020-09-24 19:16:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 19:16:02,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:02,032 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, 1, 1, 1, 1] [2020-09-24 19:16:02,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:16:02,032 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:02,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:02,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1011797160, now seen corresponding path program 1 times [2020-09-24 19:16:02,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:02,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825313810] [2020-09-24 19:16:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:02,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 19:16:03,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:16:03,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:16:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:16:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 19:16:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:03,471 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:03,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:03,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-24 19:16:03,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:16:03,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:03,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:03,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:03,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:03,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:03,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:03,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:03,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:03,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:03,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:03,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:16:03,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:03,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:03,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:03,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:16:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:03,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:03,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:16:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:03,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:03,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:03,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:03,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:03,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:16:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:16:03,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:16:03,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 19:16:03,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:16:03,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:03,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:03,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:16:03,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:03,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:16:03,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:03,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:03,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:03,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:03,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:03,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:03,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:04,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:04,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:04,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:04,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:16:04,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:04,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:04,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:04,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:04,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:04,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:04,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:04,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:04,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:04,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:04,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:04,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:04,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:04,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:04,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:04,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:04,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:16:04,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:04,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:04,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:04,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:16:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:04,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:04,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:04,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:04,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:04,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:04,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:04,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:04,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 19:16:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:04,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:04,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:04,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:04,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:04,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:04,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:04,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:04,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:04,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825313810] [2020-09-24 19:16:04,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:04,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:16:04,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152244527] [2020-09-24 19:16:04,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:16:04,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:04,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:16:04,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:16:04,109 INFO L87 Difference]: Start difference. First operand 400 states and 430 transitions. Second operand 8 states. [2020-09-24 19:16:04,641 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:05,794 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:16:08,317 INFO L93 Difference]: Finished difference Result 1340 states and 1656 transitions. [2020-09-24 19:16:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 19:16:08,318 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 212 [2020-09-24 19:16:08,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:16:08,327 INFO L225 Difference]: With dead ends: 1340 [2020-09-24 19:16:08,327 INFO L226 Difference]: Without dead ends: 1055 [2020-09-24 19:16:08,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-09-24 19:16:08,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2020-09-24 19:16:08,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 749. [2020-09-24 19:16:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-09-24 19:16:08,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 839 transitions. [2020-09-24 19:16:08,438 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 839 transitions. Word has length 212 [2020-09-24 19:16:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:16:08,438 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 839 transitions. [2020-09-24 19:16:08,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:16:08,439 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 839 transitions. [2020-09-24 19:16:08,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 19:16:08,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:16:08,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:16:08,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:16:08,444 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:16:08,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:16:08,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1020740109, now seen corresponding path program 1 times [2020-09-24 19:16:08,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:16:08,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611941061] [2020-09-24 19:16:08,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:16:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:08,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:08,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:09,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:09,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 19:16:09,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:16:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-09-24 19:16:09,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:16:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 19:16:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-24 19:16:09,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,049 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:16:10,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:16:10,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 19:16:10,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:16:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:10,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:10,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:16:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:10,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:10,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:16:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:16:10,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:16:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:16:10,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:10,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:16:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:10,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:16:10,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:16:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:16:10,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:16:10,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:16:10,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:10,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:16:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:10,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:10,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:16:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:16:10,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:10,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:16:10,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:16:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:10,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 19:16:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:16:10,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:16:10,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:16:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 19:16:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:16:10,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:16:10,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:16:10,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:16:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:16:10,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:16:10,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:16:10,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:16:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:16:10,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:10,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:16:10,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:16:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:16:10,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:16:10,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:16:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:16:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:16:10,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 19:16:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:16:10,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:16:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:16:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:16:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 19:16:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:16:10,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:16:10,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:16:10,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:16:10,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:16:10,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:16:10,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:16:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:16:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:16:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:16:10,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:16:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:16:10,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611941061] [2020-09-24 19:16:10,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:16:10,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 19:16:10,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143044970] [2020-09-24 19:16:10,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 19:16:10,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:16:10,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 19:16:10,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:16:10,614 INFO L87 Difference]: Start difference. First operand 749 states and 839 transitions. Second operand 15 states. [2020-09-24 19:16:11,152 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:11,960 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:12,966 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189