/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:46:46,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:46:46,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:46:46,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:46:46,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:46:46,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:46:46,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:46:46,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:46:46,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:46:46,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:46:46,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:46:46,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:46:46,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:46:46,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:46:46,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:46:46,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:46:46,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:46:46,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:46:46,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:46:46,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:46:46,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:46:46,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:46:46,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:46:46,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:46:46,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:46:46,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:46:46,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:46:46,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:46:46,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:46:46,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:46:46,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:46:46,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:46:46,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:46:46,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:46:46,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:46:46,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:46:46,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:46:46,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:46:46,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:46:46,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:46:46,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:46:46,370 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 [2020-10-13 12:46:46,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:46:46,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:46:46,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:46:46,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:46:46,412 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:46:46,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:46:46,412 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:46:46,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:46:46,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:46:46,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:46:46,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:46:46,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:46:46,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:46:46,414 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:46:46,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:46:46,415 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:46:46,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:46:46,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:46:46,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:46:46,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:46:46,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:46:46,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:46:46,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:46:46,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:46:46,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:46:46,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:46:46,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:46:46,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:46:46,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:46:46,418 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:46:46,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:46:46,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:46:46,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:46:46,751 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:46:46,751 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:46:46,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-10-13 12:46:46,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34f8f78ce/adf9d27285b4487f9b95cc68d39b8d82/FLAG002032023 [2020-10-13 12:46:47,364 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:46:47,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-10-13 12:46:47,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34f8f78ce/adf9d27285b4487f9b95cc68d39b8d82/FLAG002032023 [2020-10-13 12:46:47,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/34f8f78ce/adf9d27285b4487f9b95cc68d39b8d82 [2020-10-13 12:46:47,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:46:47,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:46:47,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:46:47,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:46:47,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:46:47,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:47" (1/1) ... [2020-10-13 12:46:47,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:47, skipping insertion in model container [2020-10-13 12:46:47,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:47" (1/1) ... [2020-10-13 12:46:47,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:46:47,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:46:48,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:46:48,029 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:46:48,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:46:48,240 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:46:48,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48 WrapperNode [2020-10-13 12:46:48,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:46:48,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:46:48,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:46:48,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:46:48,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (1/1) ... [2020-10-13 12:46:48,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:46:48,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:46:48,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:46:48,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:46:48,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (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 [2020-10-13 12:46:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:46:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:46:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:46:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:46:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:46:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:46:48,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:46:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:46:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:46:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:46:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-13 12:46:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:46:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:46:48,385 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:46:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:46:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:46:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:46:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:46:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:46:48,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:46:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:46:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:46:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:46:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:46:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:46:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:46:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-13 12:46:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:46:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:46:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:46:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:46:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:46:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:46:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:46:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:46:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:46:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:46:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:46:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:46:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:46:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:46:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:46:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:46:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:46:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:46:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:46:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:46:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:46:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:46:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:46:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:46:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-13 12:46:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:46:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:46:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:46:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:46:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:46:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:46:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:46:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:46:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:46:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:46:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:46:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:46:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:46:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:46:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:46:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:46:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:46:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:46:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:46:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:46:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:46:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:46:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:46:48,397 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:46:48,397 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:46:48,397 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:46:48,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:46:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:46:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:46:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-13 12:46:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:46:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:46:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:46:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:46:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:46:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:46:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:46:48,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:46:49,412 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:46:49,413 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:46:49,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:49 BoogieIcfgContainer [2020-10-13 12:46:49,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:46:49,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:46:49,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:46:49,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:46:49,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:46:47" (1/3) ... [2020-10-13 12:46:49,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cbd583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:46:49, skipping insertion in model container [2020-10-13 12:46:49,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:48" (2/3) ... [2020-10-13 12:46:49,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cbd583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:46:49, skipping insertion in model container [2020-10-13 12:46:49,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:49" (3/3) ... [2020-10-13 12:46:49,426 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-10-13 12:46:49,436 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:46:49,444 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:46:49,457 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:46:49,476 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:46:49,477 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:46:49,477 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:46:49,477 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:46:49,477 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:46:49,477 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:46:49,478 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:46:49,478 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:46:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2020-10-13 12:46:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 12:46:49,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:46:49,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:46:49,510 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:46:49,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:46:49,516 INFO L82 PathProgramCache]: Analyzing trace with hash -219528545, now seen corresponding path program 1 times [2020-10-13 12:46:49,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:46:49,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831350193] [2020-10-13 12:46:49,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:46:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:49,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:50,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:50,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:51,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:52,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:53,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:53,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 12:46:53,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:46:53,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3921 [2020-10-13 12:46:53,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:46:53,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:53,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:46:54,181 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:46:54,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:46:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:54,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:54,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:54,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 12:46:54,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:54,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:54,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:46:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:54,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:54,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:54,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:54,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:54,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:54,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:54,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:54,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:54,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:46:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:54,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:54,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:54,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:54,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:54,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:54,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:46:54,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:46:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:54,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:54,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:54,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:54,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:54,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:54,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:54,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:54,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:54,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:54,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:54,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:46:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:54,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:54,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:54,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:54,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:54,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:54,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:54,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:54,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:54,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:46:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:54,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:54,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:54,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:54,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:46:54,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:46:54,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:54,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:54,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:46:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:54,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:54,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:54,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:54,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:54,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:54,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:54,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:54,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:46:54,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:54,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:46:54,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831350193] [2020-10-13 12:46:54,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:46:54,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:46:54,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215307980] [2020-10-13 12:46:54,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:46:54,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:46:54,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:46:54,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:46:54,350 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 3 states. [2020-10-13 12:46:55,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:46:55,400 INFO L93 Difference]: Finished difference Result 281 states and 365 transitions. [2020-10-13 12:46:55,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:46:55,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-13 12:46:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:46:55,424 INFO L225 Difference]: With dead ends: 281 [2020-10-13 12:46:55,425 INFO L226 Difference]: Without dead ends: 152 [2020-10-13 12:46:55,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:46:55,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-13 12:46:55,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-10-13 12:46:55,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-13 12:46:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2020-10-13 12:46:55,510 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 46 [2020-10-13 12:46:55,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:46:55,511 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2020-10-13 12:46:55,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:46:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2020-10-13 12:46:55,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 12:46:55,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:46:55,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:46:55,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:46:55,515 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:46:55,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:46:55,515 INFO L82 PathProgramCache]: Analyzing trace with hash 207659306, now seen corresponding path program 1 times [2020-10-13 12:46:55,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:46:55,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462279695] [2020-10-13 12:46:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:46:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:55,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:55,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:56,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:56,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:59,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 12:46:59,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:46:59,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3827 [2020-10-13 12:46:59,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:59,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:46:59,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:46:59,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:46:59,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:59,640 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:46:59,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:46:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:59,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:59,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 12:46:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:59,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:46:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:59,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:59,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:59,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:59,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:46:59,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:59,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:59,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:46:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:59,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:46:59,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:46:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:59,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:59,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:59,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:59,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:59,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:59,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:46:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:59,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:59,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:46:59,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:59,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:46:59,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:46:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:59,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:46:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:59,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:59,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:59,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:46:59,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:46:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:46:59,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:46:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:46:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:46:59,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:46:59,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:46:59,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:46:59,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:46:59,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:46:59,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:46:59,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:46:59,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:46:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:46:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:46:59,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462279695] [2020-10-13 12:46:59,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:46:59,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:46:59,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376207735] [2020-10-13 12:46:59,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:46:59,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:46:59,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:46:59,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:46:59,755 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 4 states. [2020-10-13 12:47:00,178 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:00,870 INFO L93 Difference]: Finished difference Result 214 states and 256 transitions. [2020-10-13 12:47:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:47:00,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-13 12:47:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:00,874 INFO L225 Difference]: With dead ends: 214 [2020-10-13 12:47:00,874 INFO L226 Difference]: Without dead ends: 136 [2020-10-13 12:47:00,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:47:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-13 12:47:00,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-10-13 12:47:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-13 12:47:00,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2020-10-13 12:47:00,929 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 47 [2020-10-13 12:47:00,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:00,929 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2020-10-13 12:47:00,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:47:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2020-10-13 12:47:00,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:47:00,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:00,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:00,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:47:00,943 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:00,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1269439858, now seen corresponding path program 1 times [2020-10-13 12:47:00,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:00,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465725219] [2020-10-13 12:47:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:00,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:01,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:01,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:01,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:03,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 12:47:03,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:47:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2332 [2020-10-13 12:47:03,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-13 12:47:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:47:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 12:47:03,662 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:03,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:03,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:03,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:03,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:03,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 12:47:03,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:03,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:03,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:03,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:03,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:03,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:03,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:03,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:03,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:03,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:03,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:03,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:03,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:03,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:03,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:03,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:03,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:03,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:03,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:03,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:03,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:03,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:03,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:03,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:03,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:03,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 12:47:03,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:03,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:03,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:03,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:03,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:03,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:03,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:03,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:03,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:03,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:03,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:47:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:03,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:03,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:03,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:03,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:03,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:03,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:47:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:03,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:03,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:03,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:03,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:03,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:03,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:03,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:03,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:03,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465725219] [2020-10-13 12:47:03,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:03,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:47:03,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271404528] [2020-10-13 12:47:03,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:47:03,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:03,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:47:03,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:47:03,787 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand 7 states. [2020-10-13 12:47:04,175 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:04,870 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:05,162 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:05,407 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:05,983 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:06,230 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:06,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:06,613 INFO L93 Difference]: Finished difference Result 277 states and 344 transitions. [2020-10-13 12:47:06,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:47:06,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-13 12:47:06,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:06,618 INFO L225 Difference]: With dead ends: 277 [2020-10-13 12:47:06,618 INFO L226 Difference]: Without dead ends: 190 [2020-10-13 12:47:06,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 12:47:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-13 12:47:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 170. [2020-10-13 12:47:06,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-13 12:47:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 203 transitions. [2020-10-13 12:47:06,669 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 203 transitions. Word has length 51 [2020-10-13 12:47:06,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:06,670 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 203 transitions. [2020-10-13 12:47:06,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:47:06,670 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 203 transitions. [2020-10-13 12:47:06,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:47:06,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:06,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:06,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:47:06,675 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:06,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:06,675 INFO L82 PathProgramCache]: Analyzing trace with hash 13843513, now seen corresponding path program 1 times [2020-10-13 12:47:06,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:06,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437743468] [2020-10-13 12:47:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:06,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:06,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:47:08,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:47:08,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1567 [2020-10-13 12:47:08,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 12:47:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:08,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:08,516 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:08,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:08,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:47:08,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:08,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:08,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:08,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:08,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:08,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:08,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:08,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:47:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:08,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:47:08,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:47:08,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:08,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:08,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:47:08,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:47:08,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:08,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:08,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:47:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:08,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:47:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:08,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:08,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:08,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:08,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:08,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:08,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:08,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:08,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:47:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:08,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:08,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:47:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:08,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:08,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:08,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:08,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:08,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:08,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:08,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437743468] [2020-10-13 12:47:08,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:08,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:47:08,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991305823] [2020-10-13 12:47:08,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:47:08,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:08,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:47:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:47:08,734 INFO L87 Difference]: Start difference. First operand 170 states and 203 transitions. Second operand 7 states. [2020-10-13 12:47:09,494 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:09,743 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:09,979 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:10,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:10,581 INFO L93 Difference]: Finished difference Result 354 states and 456 transitions. [2020-10-13 12:47:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:47:10,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-13 12:47:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:10,589 INFO L225 Difference]: With dead ends: 354 [2020-10-13 12:47:10,589 INFO L226 Difference]: Without dead ends: 208 [2020-10-13 12:47:10,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:47:10,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-13 12:47:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 174. [2020-10-13 12:47:10,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-13 12:47:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 207 transitions. [2020-10-13 12:47:10,636 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 207 transitions. Word has length 89 [2020-10-13 12:47:10,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:10,637 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 207 transitions. [2020-10-13 12:47:10,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:47:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 207 transitions. [2020-10-13 12:47:10,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:47:10,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:10,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:10,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:47:10,639 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:10,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:10,640 INFO L82 PathProgramCache]: Analyzing trace with hash 911236791, now seen corresponding path program 1 times [2020-10-13 12:47:10,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:10,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024692347] [2020-10-13 12:47:10,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:10,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:47:12,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:47:12,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1420 [2020-10-13 12:47:12,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:12,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 12:47:12,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:47:12,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,338 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:12,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:47:12,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:12,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:12,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:12,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:12,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:47:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:12,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:47:12,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:12,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 12:47:12,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:47:12,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:12,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:47:12,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:12,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 12:47:12,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:12,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:12,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:47:12,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:47:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:12,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:12,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:12,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:12,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:47:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:12,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:47:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:12,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:12,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:12,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:12,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:12,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:12,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:12,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:12,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:12,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:12,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:12,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024692347] [2020-10-13 12:47:12,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:12,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:47:12,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249435248] [2020-10-13 12:47:12,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:12,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:12,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:12,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:12,639 INFO L87 Difference]: Start difference. First operand 174 states and 207 transitions. Second operand 8 states. [2020-10-13 12:47:13,528 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:13,765 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:47:14,022 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:14,256 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:14,858 INFO L93 Difference]: Finished difference Result 362 states and 465 transitions. [2020-10-13 12:47:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:47:14,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-13 12:47:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:14,862 INFO L225 Difference]: With dead ends: 362 [2020-10-13 12:47:14,863 INFO L226 Difference]: Without dead ends: 212 [2020-10-13 12:47:14,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:47:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-13 12:47:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 179. [2020-10-13 12:47:14,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-13 12:47:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 212 transitions. [2020-10-13 12:47:14,897 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 212 transitions. Word has length 89 [2020-10-13 12:47:14,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:14,898 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 212 transitions. [2020-10-13 12:47:14,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 212 transitions. [2020-10-13 12:47:14,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:47:14,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:14,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:14,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:47:14,900 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:14,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:14,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1984782970, now seen corresponding path program 1 times [2020-10-13 12:47:14,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:14,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412065112] [2020-10-13 12:47:14,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:14,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:15,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:47:16,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:47:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1505 [2020-10-13 12:47:16,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 12:47:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:47:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,668 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:16,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:47:16,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:16,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:16,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:16,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:47:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:16,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:47:16,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 12:47:16,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:16,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:16,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:16,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:47:16,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:16,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:16,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:16,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:47:16,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:16,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:16,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:47:16,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:47:16,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:16,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:16,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:16,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:16,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:16,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:47:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:16,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:16,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:16,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:47:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:16,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:16,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:16,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:16,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:16,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:16,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:16,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:16,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:16,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:16,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:16,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:47:16,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412065112] [2020-10-13 12:47:16,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:16,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:47:16,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762237185] [2020-10-13 12:47:16,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:16,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:16,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:16,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:16,865 INFO L87 Difference]: Start difference. First operand 179 states and 212 transitions. Second operand 8 states. [2020-10-13 12:47:17,387 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:17,922 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:47:18,427 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-10-13 12:47:18,656 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:18,921 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:47:19,189 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:47:20,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:20,265 INFO L93 Difference]: Finished difference Result 472 states and 643 transitions. [2020-10-13 12:47:20,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:47:20,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-13 12:47:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:20,270 INFO L225 Difference]: With dead ends: 472 [2020-10-13 12:47:20,270 INFO L226 Difference]: Without dead ends: 317 [2020-10-13 12:47:20,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-13 12:47:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-13 12:47:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 265. [2020-10-13 12:47:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-13 12:47:20,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 329 transitions. [2020-10-13 12:47:20,321 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 329 transitions. Word has length 89 [2020-10-13 12:47:20,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:20,321 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 329 transitions. [2020-10-13 12:47:20,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 329 transitions. [2020-10-13 12:47:20,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 12:47:20,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:20,323 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:20,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:47:20,323 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:20,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:20,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1081532791, now seen corresponding path program 1 times [2020-10-13 12:47:20,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:20,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598383672] [2020-10-13 12:47:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:20,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:20,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:21,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:21,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 12:47:25,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 12:47:25,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 12:47:25,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:47:25,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:25,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 12:47:25,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,562 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:25,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 12:47:25,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:47:25,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:25,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:25,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:47:25,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:25,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:47:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:25,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:25,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:25,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:25,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:47:25,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:47:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:25,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 12:47:25,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:47:25,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 12:47:25,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:47:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:47:25,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:47:25,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 12:47:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:25,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:25,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:25,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:25,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:25,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:25,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:25,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:25,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:25,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:25,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:25,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:25,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:25,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:25,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:47:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:25,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:25,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:25,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:25,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 12:47:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:25,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:25,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 12:47:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:25,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 12:47:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:25,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:25,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:25,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:25,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:25,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:25,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:25,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:25,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:25,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 12:47:25,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598383672] [2020-10-13 12:47:25,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:47:25,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:47:25,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023670855] [2020-10-13 12:47:25,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:25,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:25,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:25,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:25,887 INFO L87 Difference]: Start difference. First operand 265 states and 329 transitions. Second operand 8 states. [2020-10-13 12:47:26,372 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:27,503 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:28,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:28,475 INFO L93 Difference]: Finished difference Result 624 states and 801 transitions. [2020-10-13 12:47:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:47:28,476 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-13 12:47:28,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:28,479 INFO L225 Difference]: With dead ends: 624 [2020-10-13 12:47:28,479 INFO L226 Difference]: Without dead ends: 383 [2020-10-13 12:47:28,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:47:28,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-10-13 12:47:28,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 347. [2020-10-13 12:47:28,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-10-13 12:47:28,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 421 transitions. [2020-10-13 12:47:28,565 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 421 transitions. Word has length 120 [2020-10-13 12:47:28,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:28,566 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 421 transitions. [2020-10-13 12:47:28,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 421 transitions. [2020-10-13 12:47:28,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 12:47:28,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:28,568 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:28,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:47:28,569 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:28,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:28,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1272852491, now seen corresponding path program 1 times [2020-10-13 12:47:28,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:28,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980083660] [2020-10-13 12:47:28,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:28,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:28,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:28,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:28,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 12:47:30,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:47:30,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1901 [2020-10-13 12:47:30,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:47:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 12:47:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 12:47:30,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:30,814 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:30,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:30,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:30,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:30,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:47:30,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:30,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:30,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:30,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:30,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:30,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:30,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:30,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:30,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:30,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:30,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:30,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:30,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:30,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:30,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:30,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:30,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:30,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:30,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:30,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:30,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:30,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:30,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:30,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:30,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:30,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:30,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:30,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:30,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:30,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:30,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:30,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:47:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:30,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:30,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:30,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:30,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:30,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:30,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:30,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:47:30,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:47:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:30,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:47:30,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:47:30,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:47:30,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:30,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:30,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:30,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:30,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:30,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:47:30,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 12:47:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:31,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:47:31,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:47:31,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:31,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:31,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:47:31,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:31,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:47:31,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:47:31,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:31,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:31,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:31,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:31,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:31,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:31,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:31,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:31,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:31,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:31,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:31,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:31,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:47:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:31,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:47:31,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:47:31,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:31,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:31,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:31,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 12:47:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:31,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:31,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:47:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 12:47:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:47:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:31,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 12:47:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:31,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:47:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 12:47:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:31,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:31,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:31,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:31,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:31,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:31,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:31,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:31,213 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 12:47:31,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980083660] [2020-10-13 12:47:31,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:47:31,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 12:47:31,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393323174] [2020-10-13 12:47:31,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 12:47:31,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:31,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 12:47:31,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:47:31,220 INFO L87 Difference]: Start difference. First operand 347 states and 421 transitions. Second operand 12 states. [2020-10-13 12:47:31,828 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:32,359 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:32,725 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:32,991 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:33,249 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:33,483 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:47:33,756 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:47:34,031 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:47:35,127 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:47:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:35,956 INFO L93 Difference]: Finished difference Result 876 states and 1171 transitions. [2020-10-13 12:47:35,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:47:35,956 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 120 [2020-10-13 12:47:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:35,962 INFO L225 Difference]: With dead ends: 876 [2020-10-13 12:47:35,962 INFO L226 Difference]: Without dead ends: 553 [2020-10-13 12:47:35,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2020-10-13 12:47:35,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-10-13 12:47:36,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 481. [2020-10-13 12:47:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 12:47:36,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 609 transitions. [2020-10-13 12:47:36,068 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 609 transitions. Word has length 120 [2020-10-13 12:47:36,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:36,069 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 609 transitions. [2020-10-13 12:47:36,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 12:47:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 609 transitions. [2020-10-13 12:47:36,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-13 12:47:36,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:36,073 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:36,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:47:36,073 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:36,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:36,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1310769091, now seen corresponding path program 1 times [2020-10-13 12:47:36,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:36,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45610400] [2020-10-13 12:47:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-13 12:47:36,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 12:47:36,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-13 12:47:36,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:36,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 12:47:36,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 12:47:36,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,707 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:47:36,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:47:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:47:36,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:36,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:47:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:36,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:47:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:47:36,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:47:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:47:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 12:47:36,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:36,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:47:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:36,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:36,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:47:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 12:47:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:36,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:36,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:47:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:47:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:47:36,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:47:36,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 12:47:36,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 12:47:36,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:47:36,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:47:36,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:47:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:47:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:47:36,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:36,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:47:36,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:47:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:47:36,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:47:36,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:36,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:47:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:47:36,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:47:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:36,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:47:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:47:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 12:47:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:47:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:47:36,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:47:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:47:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:47:36,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:47:36,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:47:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:47:36,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-13 12:47:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:36,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-13 12:47:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-13 12:47:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:47:36,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:47:36,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:47:36,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:47:36,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:47:36,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:47:36,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:47:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:47:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:47:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:47:36,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:47:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 68 proven. 9 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-13 12:47:36,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45610400] [2020-10-13 12:47:36,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:47:36,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 12:47:36,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975962623] [2020-10-13 12:47:36,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:47:36,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:47:36,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:47:36,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:47:36,968 INFO L87 Difference]: Start difference. First operand 481 states and 609 transitions. Second operand 8 states. [2020-10-13 12:47:37,243 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:47:38,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:47:38,316 INFO L93 Difference]: Finished difference Result 950 states and 1240 transitions. [2020-10-13 12:47:38,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:47:38,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-10-13 12:47:38,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:47:38,320 INFO L225 Difference]: With dead ends: 950 [2020-10-13 12:47:38,320 INFO L226 Difference]: Without dead ends: 493 [2020-10-13 12:47:38,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:47:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-10-13 12:47:38,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 439. [2020-10-13 12:47:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-10-13 12:47:38,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 538 transitions. [2020-10-13 12:47:38,410 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 538 transitions. Word has length 174 [2020-10-13 12:47:38,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:47:38,410 INFO L479 AbstractCegarLoop]: Abstraction has 439 states and 538 transitions. [2020-10-13 12:47:38,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:47:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 538 transitions. [2020-10-13 12:47:38,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-13 12:47:38,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:47:38,414 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:47:38,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:47:38,415 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:47:38,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:47:38,415 INFO L82 PathProgramCache]: Analyzing trace with hash 2141115904, now seen corresponding path program 1 times [2020-10-13 12:47:38,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:47:38,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939159820] [2020-10-13 12:47:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:47:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:47:38,452 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:47:38,453 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:47:38,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 12:47:38,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:47:38 BoogieIcfgContainer [2020-10-13 12:47:38,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:47:38,487 INFO L168 Benchmark]: Toolchain (without parser) took 50854.36 ms. Allocated memory was 145.8 MB in the beginning and 828.4 MB in the end (delta: 682.6 MB). Free memory was 101.1 MB in the beginning and 195.0 MB in the end (delta: -93.9 MB). Peak memory consumption was 588.7 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:38,488 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-13 12:47:38,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.31 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 100.7 MB in the beginning and 171.7 MB in the end (delta: -71.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:38,489 INFO L168 Benchmark]: Boogie Preprocessor took 84.30 ms. Allocated memory is still 201.9 MB. Free memory was 171.7 MB in the beginning and 167.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:38,490 INFO L168 Benchmark]: RCFGBuilder took 1091.51 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 167.7 MB in the beginning and 199.4 MB in the end (delta: -31.7 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:38,491 INFO L168 Benchmark]: TraceAbstraction took 49066.66 ms. Allocated memory was 234.4 MB in the beginning and 828.4 MB in the end (delta: 594.0 MB). Free memory was 199.4 MB in the beginning and 195.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 598.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:47:38,494 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 607.31 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 100.7 MB in the beginning and 171.7 MB in the end (delta: -71.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.30 ms. Allocated memory is still 201.9 MB. Free memory was 171.7 MB in the beginning and 167.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1091.51 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 167.7 MB in the beginning and 199.4 MB in the end (delta: -31.7 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 49066.66 ms. Allocated memory was 234.4 MB in the beginning and 828.4 MB in the end (delta: 594.0 MB). Free memory was 199.4 MB in the beginning and 195.0 MB in the end (delta: 4.4 MB). Peak memory consumption was 598.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 211]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L198] int retValue_acc ; [L201] retValue_acc = 1 [L202] return (retValue_acc); [L902] RET, EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L889] CALL test() [L585] int splverifierCounter ; [L586] int tmp ; [L587] int tmp___0 ; [L588] int tmp___1 ; [L589] int tmp___2 ; [L592] splverifierCounter = 0 [L594] COND TRUE 1 [L596] COND TRUE splverifierCounter < 4 [L602] tmp = __VERIFIER_nondet_int() [L604] COND TRUE \read(tmp) [L606] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L606] RET waterRise() [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) [L637] CALL timeShift() [L659] COND FALSE !(\read(pumpRunning)) [L666] COND TRUE \read(systemActive) [L668] CALL processEnvironment() [L688] int tmp ; [L691] COND TRUE ! pumpRunning [L693] CALL, EXPR isHighWaterLevel() [L803] int retValue_acc ; [L804] int tmp ; [L805] int tmp___0 ; [L809] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L809] RET, EXPR isHighWaterSensorDry() [L809] tmp = isHighWaterSensorDry() [L811] COND FALSE !(\read(tmp)) [L814] tmp___0 = 1 [L816] retValue_acc = tmp___0 [L817] return (retValue_acc); [L693] RET, EXPR isHighWaterLevel() [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) [L697] CALL activatePump() [L722] int tmp ; [L726] CALL, EXPR isMethaneAlarm() [L747] int retValue_acc ; [L751] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L751] RET, EXPR isMethaneLevelCritical() [L751] retValue_acc = isMethaneLevelCritical() [L753] return (retValue_acc); [L726] RET, EXPR isMethaneAlarm() [L726] tmp = isMethaneAlarm() [L728] COND FALSE !(\read(tmp)) [L732] CALL activatePump__wrappee__highWaterSensor() [L716] pumpRunning = 1 [L732] RET activatePump__wrappee__highWaterSensor() [L697] RET activatePump() [L668] RET processEnvironment() [L674] CALL __utac_acc__Specification4_spec__1() [L144] int tmp ; [L145] int tmp___0 ; [L149] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L149] RET, EXPR getWaterLevel() [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) [L674] RET __utac_acc__Specification4_spec__1() [L637] RET timeShift() [L594] COND TRUE 1 [L596] COND TRUE splverifierCounter < 4 [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) [L637] CALL timeShift() [L659] COND TRUE \read(pumpRunning) [L661] CALL lowerWaterLevel() [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L661] RET lowerWaterLevel() [L666] COND TRUE \read(systemActive) [L668] CALL processEnvironment() [L688] int tmp ; [L691] COND FALSE !(! pumpRunning) [L706] FCALL processEnvironment__wrappee__base() [L668] RET processEnvironment() [L674] CALL __utac_acc__Specification4_spec__1() [L144] int tmp ; [L145] int tmp___0 ; [L149] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L149] RET, EXPR getWaterLevel() [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) [L674] RET __utac_acc__Specification4_spec__1() [L637] RET timeShift() [L594] COND TRUE 1 [L596] COND TRUE splverifierCounter < 4 [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) [L637] CALL timeShift() [L659] COND TRUE \read(pumpRunning) [L661] CALL lowerWaterLevel() [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 [L661] RET lowerWaterLevel() [L666] COND TRUE \read(systemActive) [L668] CALL processEnvironment() [L688] int tmp ; [L691] COND FALSE !(! pumpRunning) [L706] FCALL processEnvironment__wrappee__base() [L668] RET processEnvironment() [L674] CALL __utac_acc__Specification4_spec__1() [L144] int tmp ; [L145] int tmp___0 ; [L149] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L149] RET, EXPR getWaterLevel() [L149] tmp = getWaterLevel() [L151] COND TRUE tmp == 0 [L153] CALL, EXPR isPumpRunning() [L758] int retValue_acc ; [L761] retValue_acc = pumpRunning [L762] return (retValue_acc); [L153] RET, EXPR isPumpRunning() [L153] tmp___0 = isPumpRunning() [L155] COND TRUE \read(tmp___0) [L157] CALL __automaton_fail() [L211] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 222 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.9s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 998 SDtfs, 1631 SDslu, 905 SDs, 0 SdLazy, 4318 SolverSat, 987 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 272 SyntacticMatches, 7 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=481occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 358 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 26.3s InterpolantComputationTime, 988 NumberOfCodeBlocks, 988 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 816 ConstructedInterpolants, 0 QuantifiedInterpolants, 277962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 161/172 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...