/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:12:44,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:12:44,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:12:44,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:12:44,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:12:44,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:12:44,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:12:44,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:12:44,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:12:44,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:12:44,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:12:44,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:12:44,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:12:44,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:12:44,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:12:44,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:12:44,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:12:44,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:12:44,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:12:44,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:12:44,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:12:44,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:12:44,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:12:44,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:12:44,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:12:44,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:12:44,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:12:44,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:12:44,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:12:44,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:12:44,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:12:44,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:12:44,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:12:44,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:12:44,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:12:44,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:12:44,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:12:44,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:12:44,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:12:44,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:12:44,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:12:44,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:12:44,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:12:44,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:12:44,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:12:44,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:12:44,412 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:12:44,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:12:44,412 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:12:44,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:12:44,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:12:44,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:12:44,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:12:44,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:12:44,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:12:44,415 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:12:44,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:12:44,415 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:12:44,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:12:44,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:12:44,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:12:44,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:12:44,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:12:44,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:12:44,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:12:44,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:12:44,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:12:44,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:12:44,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:12:44,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:12:44,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:12:44,418 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.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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:12:44,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:12:44,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:12:44,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:12:44,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:12:44,928 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:12:44,929 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-21 11:12:45,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eed0f3420/5732bb470b134459b3e6160b9f504ee9/FLAG754e3a57d [2020-09-21 11:12:45,616 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:12:45,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-21 11:12:45,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eed0f3420/5732bb470b134459b3e6160b9f504ee9/FLAG754e3a57d [2020-09-21 11:12:45,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eed0f3420/5732bb470b134459b3e6160b9f504ee9 [2020-09-21 11:12:45,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:12:45,953 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:12:45,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:45,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:12:45,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:12:45,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47743781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:45, skipping insertion in model container [2020-09-21 11:12:45,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:45" (1/1) ... [2020-09-21 11:12:45,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:12:46,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:12:46,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:46,482 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:12:46,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:46,625 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:12:46,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46 WrapperNode [2020-09-21 11:12:46,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:46,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:12:46,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:12:46,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:12:46,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (1/1) ... [2020-09-21 11:12:46,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (1/1) ... [2020-09-21 11:12:46,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (1/1) ... [2020-09-21 11:12:46,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (1/1) ... [2020-09-21 11:12:46,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (1/1) ... [2020-09-21 11:12:46,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (1/1) ... [2020-09-21 11:12:46,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (1/1) ... [2020-09-21 11:12:46,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:12:46,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:12:46,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:12:46,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:12:46,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:12:46,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:12:46,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:12:46,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:12:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:12:46,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:12:46,829 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:12:46,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:12:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:12:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:12:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:12:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:12:46,830 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:12:46,831 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:12:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:12:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:12:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:12:46,832 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:12:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:12:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:12:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:12:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:12:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:12:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:12:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:12:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:12:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:12:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:12:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:12:46,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:12:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:12:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:46,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:12:46,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:12:46,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:12:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:12:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:12:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:12:46,837 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:12:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:12:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:12:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:12:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:12:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:12:46,838 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:12:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:12:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:12:46,840 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:12:46,840 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:12:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:12:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:12:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:12:46,841 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:12:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:12:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:12:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:12:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:12:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:12:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:12:46,842 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:12:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:12:46,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:12:46,845 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:12:46,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:12:46,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:46,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:12:46,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:12:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:12:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:12:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:12:46,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:46,848 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:46,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:12:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:12:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:12:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:12:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:12:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:12:46,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:12:47,863 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:12:47,864 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:12:47,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:47 BoogieIcfgContainer [2020-09-21 11:12:47,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:12:47,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:12:47,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:12:47,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:12:47,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:12:45" (1/3) ... [2020-09-21 11:12:47,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719435ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:47, skipping insertion in model container [2020-09-21 11:12:47,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:46" (2/3) ... [2020-09-21 11:12:47,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719435ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:47, skipping insertion in model container [2020-09-21 11:12:47,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:47" (3/3) ... [2020-09-21 11:12:47,885 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-09-21 11:12:47,897 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:12:47,910 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:12:47,931 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:12:47,961 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:12:47,962 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:12:47,962 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:12:47,962 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:12:47,962 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:12:47,962 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:12:47,963 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:12:47,963 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:12:47,989 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-09-21 11:12:47,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:12:48,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:48,001 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] [2020-09-21 11:12:48,002 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:48,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:48,008 INFO L82 PathProgramCache]: Analyzing trace with hash -368094870, now seen corresponding path program 1 times [2020-09-21 11:12:48,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:48,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126015223] [2020-09-21 11:12:48,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,325 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:12:48,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:12:48,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:12:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:48,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:48,809 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:48,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,824 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,824 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,825 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:48,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:48,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:48,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:48,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,886 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,886 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:48,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:48,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:48,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:48,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:48,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:48,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:48,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:48,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,901 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:48,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:48,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:48,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:48,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:48,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:48,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:48,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:48,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:48,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:12:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:48,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:48,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:12:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:48,955 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:48,956 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:48,956 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:48,956 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:48,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:48,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:48,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:48,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:48,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:48,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:48,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:48,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126015223] [2020-09-21 11:12:48,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:48,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:12:48,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124139577] [2020-09-21 11:12:48,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:12:48,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:49,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:12:49,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:49,008 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2020-09-21 11:12:50,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:50,031 INFO L93 Difference]: Finished difference Result 258 states and 341 transitions. [2020-09-21 11:12:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:12:50,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:12:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:50,054 INFO L225 Difference]: With dead ends: 258 [2020-09-21 11:12:50,054 INFO L226 Difference]: Without dead ends: 140 [2020-09-21 11:12:50,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:50,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-21 11:12:50,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 109. [2020-09-21 11:12:50,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-21 11:12:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2020-09-21 11:12:50,168 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 46 [2020-09-21 11:12:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:50,169 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2020-09-21 11:12:50,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:12:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2020-09-21 11:12:50,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:12:50,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:50,174 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] [2020-09-21 11:12:50,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:12:50,175 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:50,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:50,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1630578526, now seen corresponding path program 1 times [2020-09-21 11:12:50,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:50,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876478326] [2020-09-21 11:12:50,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:12:50,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:12:50,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:12:50,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:12:50,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:50,575 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:50,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:50,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:50,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:50,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:50,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:50,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:50,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:50,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,626 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:50,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:50,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:50,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:50,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:50,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:50,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,632 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:50,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:50,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:50,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:50,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:50,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:50,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:50,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:50,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:12:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:50,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:50,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:50,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:50,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:12:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:50,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:50,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:50,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:50,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:50,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:50,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:50,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:50,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:50,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:50,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:50,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876478326] [2020-09-21 11:12:50,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:50,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:50,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926849134] [2020-09-21 11:12:50,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:50,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:50,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:50,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:50,662 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 4 states. [2020-09-21 11:12:51,121 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:12:51,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:51,699 INFO L93 Difference]: Finished difference Result 187 states and 228 transitions. [2020-09-21 11:12:51,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:51,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:12:51,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:51,703 INFO L225 Difference]: With dead ends: 187 [2020-09-21 11:12:51,703 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 11:12:51,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:12:51,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 11:12:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 100. [2020-09-21 11:12:51,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-21 11:12:51,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-09-21 11:12:51,738 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 47 [2020-09-21 11:12:51,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:51,739 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-09-21 11:12:51,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:51,739 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-09-21 11:12:51,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:12:51,741 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:51,741 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] [2020-09-21 11:12:51,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:12:51,742 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:51,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1910957979, now seen corresponding path program 1 times [2020-09-21 11:12:51,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:51,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063877022] [2020-09-21 11:12:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:52,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:12:52,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-21 11:12:52,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:12:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:12:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,498 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:52,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:12:52,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,615 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,615 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:52,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,621 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,621 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,621 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:52,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:52,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,627 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:52,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,636 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:52,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:52,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:52,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:12:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,645 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,645 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,645 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:12:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:52,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:52,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:52,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:52,651 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:52,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:52,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:52,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:52,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:52,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:52,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063877022] [2020-09-21 11:12:52,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:52,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:52,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272968143] [2020-09-21 11:12:52,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:52,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:52,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:52,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:52,667 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2020-09-21 11:12:53,015 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:12:53,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:53,750 INFO L93 Difference]: Finished difference Result 200 states and 246 transitions. [2020-09-21 11:12:53,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:53,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-09-21 11:12:53,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:53,756 INFO L225 Difference]: With dead ends: 200 [2020-09-21 11:12:53,756 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 11:12:53,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:12:53,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 11:12:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 100. [2020-09-21 11:12:53,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-21 11:12:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-09-21 11:12:53,786 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 52 [2020-09-21 11:12:53,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:53,787 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-09-21 11:12:53,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:53,787 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-09-21 11:12:53,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 11:12:53,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:53,790 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] [2020-09-21 11:12:53,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:12:53,790 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:53,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:53,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2015382800, now seen corresponding path program 1 times [2020-09-21 11:12:53,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:53,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731384912] [2020-09-21 11:12:53,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 11:12:54,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-09-21 11:12:54,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:12:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:12:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,617 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:54,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:12:54,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:54,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,753 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:54,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,758 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:54,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:12:54,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:54,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:54,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:12:54,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:12:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:12:54,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:12:54,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:12:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:12:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:12:54,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:12:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,872 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,873 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:54,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:54,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 11:12:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,883 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:54,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-21 11:12:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:54,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:54,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731384912] [2020-09-21 11:12:54,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:54,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:12:54,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422975556] [2020-09-21 11:12:54,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:12:54,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:54,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:12:54,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:12:54,904 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 7 states. [2020-09-21 11:12:55,515 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:12:56,996 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:12:57,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:57,539 INFO L93 Difference]: Finished difference Result 288 states and 356 transitions. [2020-09-21 11:12:57,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:12:57,540 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-09-21 11:12:57,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:57,542 INFO L225 Difference]: With dead ends: 288 [2020-09-21 11:12:57,543 INFO L226 Difference]: Without dead ends: 212 [2020-09-21 11:12:57,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:12:57,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-09-21 11:12:57,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2020-09-21 11:12:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-21 11:12:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 193 transitions. [2020-09-21 11:12:57,613 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 193 transitions. Word has length 60 [2020-09-21 11:12:57,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:57,614 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 193 transitions. [2020-09-21 11:12:57,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:12:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 193 transitions. [2020-09-21 11:12:57,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-21 11:12:57,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:57,616 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] [2020-09-21 11:12:57,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:12:57,617 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:57,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:57,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2082850905, now seen corresponding path program 1 times [2020-09-21 11:12:57,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:57,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723224134] [2020-09-21 11:12:57,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:58,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,468 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:58,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,573 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-21 11:12:58,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:58,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,620 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,620 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,621 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,626 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,635 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,635 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:12:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:12:58,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:12:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:12:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,689 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,689 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:12:58,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:58,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:12:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,699 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:12:58,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:58,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:12:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:12:58,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:58,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-21 11:12:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,720 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,720 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,720 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:12:58,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:12:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:58,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 11:12:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:58,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:58,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:58,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:58,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:58,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723224134] [2020-09-21 11:12:58,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:58,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:12:58,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417590480] [2020-09-21 11:12:58,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:12:58,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:58,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:12:58,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:12:58,776 INFO L87 Difference]: Start difference. First operand 169 states and 193 transitions. Second operand 8 states. [2020-09-21 11:12:59,301 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:00,603 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:00,956 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:01,265 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:01,584 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:02,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:02,391 INFO L93 Difference]: Finished difference Result 461 states and 584 transitions. [2020-09-21 11:13:02,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:02,392 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-21 11:13:02,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:02,396 INFO L225 Difference]: With dead ends: 461 [2020-09-21 11:13:02,396 INFO L226 Difference]: Without dead ends: 316 [2020-09-21 11:13:02,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:02,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-09-21 11:13:02,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 277. [2020-09-21 11:13:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-21 11:13:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 322 transitions. [2020-09-21 11:13:02,459 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 322 transitions. Word has length 74 [2020-09-21 11:13:02,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:02,460 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 322 transitions. [2020-09-21 11:13:02,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 322 transitions. [2020-09-21 11:13:02,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:02,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:02,462 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] [2020-09-21 11:13:02,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:02,463 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:02,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:02,463 INFO L82 PathProgramCache]: Analyzing trace with hash -520307359, now seen corresponding path program 1 times [2020-09-21 11:13:02,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:02,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365738416] [2020-09-21 11:13:02,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:02,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:02,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:02,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:02,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:02,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:02,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-21 11:13:02,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:13:02,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,205 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:03,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,270 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,325 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,325 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,325 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,325 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:03,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,332 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:03,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:03,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:03,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,386 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,386 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,386 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,387 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:03,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:03,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:03,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:13:03,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:03,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:03,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:03,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:03,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:03,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,443 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:03,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:03,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:03,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:03,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365738416] [2020-09-21 11:13:03,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:03,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:03,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6319889] [2020-09-21 11:13:03,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:03,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:03,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:03,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:03,475 INFO L87 Difference]: Start difference. First operand 277 states and 322 transitions. Second operand 9 states. [2020-09-21 11:13:03,934 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:04,546 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:06,122 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:07,274 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-21 11:13:08,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:08,346 INFO L93 Difference]: Finished difference Result 699 states and 877 transitions. [2020-09-21 11:13:08,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:13:08,347 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:13:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:08,352 INFO L225 Difference]: With dead ends: 699 [2020-09-21 11:13:08,352 INFO L226 Difference]: Without dead ends: 543 [2020-09-21 11:13:08,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:13:08,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-09-21 11:13:08,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 495. [2020-09-21 11:13:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-21 11:13:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 591 transitions. [2020-09-21 11:13:08,471 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 591 transitions. Word has length 78 [2020-09-21 11:13:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:08,471 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 591 transitions. [2020-09-21 11:13:08,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 591 transitions. [2020-09-21 11:13:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:08,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:08,473 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] [2020-09-21 11:13:08,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:08,474 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:08,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:08,474 INFO L82 PathProgramCache]: Analyzing trace with hash -169507422, now seen corresponding path program 1 times [2020-09-21 11:13:08,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:08,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670589686] [2020-09-21 11:13:08,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:08,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:08,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-21 11:13:08,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:08,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,757 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:08,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:08,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,799 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:08,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:08,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:08,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:08,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:08,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,851 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,851 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:08,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:08,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:08,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:08,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:08,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:08,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:08,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:08,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:08,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:08,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:08,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:08,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:08,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670589686] [2020-09-21 11:13:08,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:08,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:08,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50345869] [2020-09-21 11:13:08,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:08,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:08,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:08,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:08,936 INFO L87 Difference]: Start difference. First operand 495 states and 591 transitions. Second operand 8 states. [2020-09-21 11:13:09,938 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:10,240 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:10,583 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:11,558 INFO L93 Difference]: Finished difference Result 910 states and 1129 transitions. [2020-09-21 11:13:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:11,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-09-21 11:13:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:11,568 INFO L225 Difference]: With dead ends: 910 [2020-09-21 11:13:11,568 INFO L226 Difference]: Without dead ends: 540 [2020-09-21 11:13:11,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:11,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-09-21 11:13:11,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 495. [2020-09-21 11:13:11,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-21 11:13:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 590 transitions. [2020-09-21 11:13:11,679 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 590 transitions. Word has length 78 [2020-09-21 11:13:11,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:11,680 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 590 transitions. [2020-09-21 11:13:11,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:11,680 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 590 transitions. [2020-09-21 11:13:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:11,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:11,682 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] [2020-09-21 11:13:11,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:13:11,683 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:11,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:11,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1753720612, now seen corresponding path program 1 times [2020-09-21 11:13:11,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:11,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127988781] [2020-09-21 11:13:11,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:11,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -54 [2020-09-21 11:13:11,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 54 [2020-09-21 11:13:11,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:11,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:11,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:11,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:13:11,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:11,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,000 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:12,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:12,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:12,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:12,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:12,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:12,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:12,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:12,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,089 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,090 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,090 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:12,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:13:12,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:12,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:12,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:12,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:12,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:12,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:12,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,155 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,155 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:12,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:12,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:12,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:12,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:12,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:12,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127988781] [2020-09-21 11:13:12,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:12,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:12,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030641832] [2020-09-21 11:13:12,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:12,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:12,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:12,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:12,191 INFO L87 Difference]: Start difference. First operand 495 states and 590 transitions. Second operand 9 states. [2020-09-21 11:13:13,354 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:13,644 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:13,964 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:14,251 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:15,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:15,244 INFO L93 Difference]: Finished difference Result 985 states and 1216 transitions. [2020-09-21 11:13:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:15,245 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-09-21 11:13:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:15,252 INFO L225 Difference]: With dead ends: 985 [2020-09-21 11:13:15,253 INFO L226 Difference]: Without dead ends: 514 [2020-09-21 11:13:15,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:13:15,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-09-21 11:13:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 474. [2020-09-21 11:13:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-09-21 11:13:15,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 562 transitions. [2020-09-21 11:13:15,370 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 562 transitions. Word has length 78 [2020-09-21 11:13:15,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:15,371 INFO L479 AbstractCegarLoop]: Abstraction has 474 states and 562 transitions. [2020-09-21 11:13:15,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 562 transitions. [2020-09-21 11:13:15,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:13:15,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:15,399 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] [2020-09-21 11:13:15,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:13:15,399 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:15,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:15,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1806854829, now seen corresponding path program 1 times [2020-09-21 11:13:15,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:15,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466208120] [2020-09-21 11:13:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:13:15,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:13:15,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-21 11:13:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 11:13:15,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,746 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:15,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:15,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:15,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:15,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:15,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,851 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,851 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,851 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:15,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:15,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:15,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:15,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:13:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:15,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:13:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,901 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:15,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466208120] [2020-09-21 11:13:15,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:15,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:15,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437785864] [2020-09-21 11:13:15,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:15,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:15,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:15,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:15,916 INFO L87 Difference]: Start difference. First operand 474 states and 562 transitions. Second operand 9 states. [2020-09-21 11:13:16,936 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:17,534 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:17,870 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:18,203 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:18,544 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:19,589 INFO L93 Difference]: Finished difference Result 857 states and 1052 transitions. [2020-09-21 11:13:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:13:19,590 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-09-21 11:13:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:19,596 INFO L225 Difference]: With dead ends: 857 [2020-09-21 11:13:19,597 INFO L226 Difference]: Without dead ends: 528 [2020-09-21 11:13:19,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:13:19,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-09-21 11:13:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 468. [2020-09-21 11:13:19,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-09-21 11:13:19,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 554 transitions. [2020-09-21 11:13:19,735 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 554 transitions. Word has length 79 [2020-09-21 11:13:19,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:19,735 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 554 transitions. [2020-09-21 11:13:19,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:19,735 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 554 transitions. [2020-09-21 11:13:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-21 11:13:19,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:19,740 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:13:19,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:13:19,740 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:19,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1676762157, now seen corresponding path program 1 times [2020-09-21 11:13:19,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:19,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331632042] [2020-09-21 11:13:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:19,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:19,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:19,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:19,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:19,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-09-21 11:13:19,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:19,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:13:19,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 11:13:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:19,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,068 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:20,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:13:20,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:20,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:20,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:20,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:20,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,189 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:20,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:20,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:20,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:20,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:20,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:20,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:20,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:20,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:20,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:20,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:20,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:20,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:20,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:20,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,316 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:20,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:20,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 11:13:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:20,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:13:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:20,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:20,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:20,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:13:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:20,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 11:13:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:20,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:20,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:20,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:20,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:20,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:20,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:20,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:20,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:20,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:20,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331632042] [2020-09-21 11:13:20,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:20,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:13:20,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459931670] [2020-09-21 11:13:20,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:20,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:20,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:20,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:20,401 INFO L87 Difference]: Start difference. First operand 468 states and 554 transitions. Second operand 10 states. [2020-09-21 11:13:21,437 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:21,762 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:13:22,085 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:22,392 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:23,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:23,159 INFO L93 Difference]: Finished difference Result 946 states and 1153 transitions. [2020-09-21 11:13:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:23,160 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 111 [2020-09-21 11:13:23,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:23,164 INFO L225 Difference]: With dead ends: 946 [2020-09-21 11:13:23,164 INFO L226 Difference]: Without dead ends: 502 [2020-09-21 11:13:23,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:23,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-09-21 11:13:23,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 468. [2020-09-21 11:13:23,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-09-21 11:13:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 552 transitions. [2020-09-21 11:13:23,256 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 552 transitions. Word has length 111 [2020-09-21 11:13:23,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:23,256 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 552 transitions. [2020-09-21 11:13:23,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:23,256 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 552 transitions. [2020-09-21 11:13:23,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-21 11:13:23,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:23,259 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:13:23,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:13:23,260 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:23,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:23,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1622369259, now seen corresponding path program 1 times [2020-09-21 11:13:23,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:23,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477298878] [2020-09-21 11:13:23,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:23,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -44 [2020-09-21 11:13:23,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 44 [2020-09-21 11:13:23,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-09-21 11:13:23,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:23,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-21 11:13:23,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:23,575 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:23,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,626 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,627 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:23,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,634 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:23,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:23,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,639 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,640 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:23,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:23,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:23,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:13:23,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:23,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:23,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:23,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,724 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:23,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:23,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:23,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:23,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:23,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,743 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,743 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,744 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,744 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:23,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:23,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:23,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:23,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:23,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:23,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:23,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:23,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:23,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,814 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,815 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:23,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:23,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,836 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 11:13:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:13:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:23,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:23,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:23,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-09-21 11:13:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-21 11:13:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:23,973 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:23,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477298878] [2020-09-21 11:13:23,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:23,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:13:23,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356712646] [2020-09-21 11:13:23,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:23,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:23,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:23,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:23,978 INFO L87 Difference]: Start difference. First operand 468 states and 552 transitions. Second operand 9 states. [2020-09-21 11:13:25,272 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:25,633 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:25,895 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:26,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:26,524 INFO L93 Difference]: Finished difference Result 848 states and 1019 transitions. [2020-09-21 11:13:26,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:26,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-09-21 11:13:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:26,528 INFO L225 Difference]: With dead ends: 848 [2020-09-21 11:13:26,528 INFO L226 Difference]: Without dead ends: 404 [2020-09-21 11:13:26,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-21 11:13:26,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 391. [2020-09-21 11:13:26,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-09-21 11:13:26,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 456 transitions. [2020-09-21 11:13:26,605 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 456 transitions. Word has length 111 [2020-09-21 11:13:26,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:26,605 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 456 transitions. [2020-09-21 11:13:26,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:26,606 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 456 transitions. [2020-09-21 11:13:26,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-21 11:13:26,608 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:26,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:13:26,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:13:26,609 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:26,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:26,609 INFO L82 PathProgramCache]: Analyzing trace with hash 782485200, now seen corresponding path program 1 times [2020-09-21 11:13:26,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:26,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315672692] [2020-09-21 11:13:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:26,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:26,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:26,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:26,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:26,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:13:26,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:13:26,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:13:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-21 11:13:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:13:26,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:26,962 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:26,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:26,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:26,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:26,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:26,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:26,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:26,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:26,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:26,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:26,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,000 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,001 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,001 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,001 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,004 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,005 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,005 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:27,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,009 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,009 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,015 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,015 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:27,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:27,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:27,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:27,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:27,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:27,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:27,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:27,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:27,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,128 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:27,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-21 11:13:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:27,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:13:27,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-21 11:13:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,152 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:27,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:27,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:13:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:27,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,185 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:27,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 11:13:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:27,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:27,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:27,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:13:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,216 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,216 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:27,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:13:27,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315672692] [2020-09-21 11:13:27,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:27,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:13:27,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447885671] [2020-09-21 11:13:27,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:13:27,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:27,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:13:27,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:27,263 INFO L87 Difference]: Start difference. First operand 391 states and 456 transitions. Second operand 12 states. [2020-09-21 11:13:27,833 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:28,549 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:29,426 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:29,776 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:30,086 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:30,412 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:30,767 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:31,092 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:31,834 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:32,564 INFO L93 Difference]: Finished difference Result 867 states and 1064 transitions. [2020-09-21 11:13:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:13:32,565 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-09-21 11:13:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:32,570 INFO L225 Difference]: With dead ends: 867 [2020-09-21 11:13:32,570 INFO L226 Difference]: Without dead ends: 573 [2020-09-21 11:13:32,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=224, Invalid=532, Unknown=0, NotChecked=0, Total=756 [2020-09-21 11:13:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-09-21 11:13:32,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 495. [2020-09-21 11:13:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-21 11:13:32,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 582 transitions. [2020-09-21 11:13:32,675 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 582 transitions. Word has length 115 [2020-09-21 11:13:32,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:32,676 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 582 transitions. [2020-09-21 11:13:32,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:13:32,676 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 582 transitions. [2020-09-21 11:13:32,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-21 11:13:32,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:32,680 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, 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] [2020-09-21 11:13:32,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:13:32,680 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:32,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:32,681 INFO L82 PathProgramCache]: Analyzing trace with hash 218697075, now seen corresponding path program 2 times [2020-09-21 11:13:32,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:32,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343466371] [2020-09-21 11:13:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:13:32,769 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:13:32,770 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:13:32,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:13:32,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:13:32 BoogieIcfgContainer [2020-09-21 11:13:32,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:13:32,849 INFO L168 Benchmark]: Toolchain (without parser) took 46891.55 ms. Allocated memory was 142.6 MB in the beginning and 766.0 MB in the end (delta: 623.4 MB). Free memory was 104.4 MB in the beginning and 325.3 MB in the end (delta: -220.9 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:32,850 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-21 11:13:32,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.51 ms. Allocated memory was 142.6 MB in the beginning and 205.5 MB in the end (delta: 62.9 MB). Free memory was 104.0 MB in the beginning and 173.8 MB in the end (delta: -69.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:32,859 INFO L168 Benchmark]: Boogie Preprocessor took 100.82 ms. Allocated memory is still 205.5 MB. Free memory was 173.8 MB in the beginning and 170.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:32,859 INFO L168 Benchmark]: RCFGBuilder took 1146.84 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 170.1 MB in the beginning and 193.5 MB in the end (delta: -23.3 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:32,860 INFO L168 Benchmark]: TraceAbstraction took 44959.57 ms. Allocated memory was 233.8 MB in the beginning and 766.0 MB in the end (delta: 532.2 MB). Free memory was 191.9 MB in the beginning and 325.3 MB in the end (delta: -133.5 MB). Peak memory consumption was 398.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:13:32,869 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.51 ms. Allocated memory was 142.6 MB in the beginning and 205.5 MB in the end (delta: 62.9 MB). Free memory was 104.0 MB in the beginning and 173.8 MB in the end (delta: -69.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.82 ms. Allocated memory is still 205.5 MB. Free memory was 173.8 MB in the beginning and 170.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1146.84 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 170.1 MB in the beginning and 193.5 MB in the end (delta: -23.3 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44959.57 ms. Allocated memory was 233.8 MB in the beginning and 766.0 MB in the end (delta: 532.2 MB). Free memory was 191.9 MB in the beginning and 325.3 MB in the end (delta: -133.5 MB). Peak memory consumption was 398.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 540]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L282] int pumpRunning = 0; [L283] int systemActive = 1; [L442] int waterLevel = 1; [L443] int methaneLevelCritical = 0; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L150] int retValue_acc ; [L151] int tmp ; [L155] FCALL select_helpers() [L156] FCALL select_features() [L157] CALL, EXPR valid_product() [L199] int retValue_acc ; [L202] retValue_acc = 1 [L203] return (retValue_acc); [L157] RET, EXPR valid_product() [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) [L161] FCALL setup() [L162] CALL runTest() [L141] CALL test() [L210] int splverifierCounter ; [L211] int tmp ; [L212] int tmp___0 ; [L213] int tmp___1 ; [L214] int tmp___2 ; [L217] splverifierCounter = 0 [L219] COND TRUE 1 [L221] COND TRUE splverifierCounter < 4 [L227] tmp = __VERIFIER_nondet_int() [L229] COND TRUE \read(tmp) [L231] CALL waterRise() [L460] COND TRUE waterLevel < 2 [L461] waterLevel = waterLevel + 1 [L231] RET waterRise() [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND TRUE \read(tmp___1) [L264] CALL timeShift() [L289] COND FALSE !(\read(pumpRunning)) [L296] COND TRUE \read(systemActive) [L298] CALL processEnvironment() [L318] int tmp ; [L321] COND TRUE ! pumpRunning [L323] CALL, EXPR isHighWaterLevel() [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L421] CALL, EXPR isHighWaterSensorDry() [L522] int retValue_acc ; [L525] COND FALSE !(waterLevel < 2) [L529] retValue_acc = 0 [L530] return (retValue_acc); [L421] RET, EXPR isHighWaterSensorDry() [L421] tmp = isHighWaterSensorDry() [L423] COND FALSE !(\read(tmp)) [L426] tmp___0 = 1 [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); [L323] RET, EXPR isHighWaterLevel() [L323] tmp = isHighWaterLevel() [L325] COND TRUE \read(tmp) [L327] CALL activatePump() [L346] pumpRunning = 1 [L327] RET activatePump() [L298] RET processEnvironment() [L304] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) [L304] RET __utac_acc__Specification4_spec__1() [L264] RET timeShift() [L219] COND TRUE 1 [L221] COND TRUE splverifierCounter < 4 [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND TRUE \read(tmp___1) [L264] CALL timeShift() [L289] COND TRUE \read(pumpRunning) [L291] CALL lowerWaterLevel() [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 [L291] RET lowerWaterLevel() [L296] COND TRUE \read(systemActive) [L298] CALL processEnvironment() [L318] int tmp ; [L321] COND FALSE !(! pumpRunning) [L336] FCALL processEnvironment__wrappee__base() [L298] RET processEnvironment() [L304] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) [L304] RET __utac_acc__Specification4_spec__1() [L264] RET timeShift() [L219] COND TRUE 1 [L221] COND TRUE splverifierCounter < 4 [L227] tmp = __VERIFIER_nondet_int() [L229] COND FALSE !(\read(tmp)) [L237] tmp___0 = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp___0)) [L247] tmp___2 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___2)) [L255] tmp___1 = __VERIFIER_nondet_int() [L257] COND TRUE \read(tmp___1) [L264] CALL timeShift() [L289] COND TRUE \read(pumpRunning) [L291] CALL lowerWaterLevel() [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 [L291] RET lowerWaterLevel() [L296] COND TRUE \read(systemActive) [L298] CALL processEnvironment() [L318] int tmp ; [L321] COND FALSE !(! pumpRunning) [L336] FCALL processEnvironment__wrappee__base() [L298] RET processEnvironment() [L304] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L53] CALL, EXPR isPumpRunning() [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); [L53] RET, EXPR isPumpRunning() [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) [L57] CALL __automaton_fail() [L540] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.8s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1290 SDtfs, 2423 SDslu, 1374 SDs, 0 SdLazy, 5874 SolverSat, 1665 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 455 GetRequests, 312 SyntacticMatches, 8 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=495occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 479 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 1080 NumberOfCodeBlocks, 1080 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 917 ConstructedInterpolants, 0 QuantifiedInterpolants, 289012 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 67/75 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...