/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --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_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:45:45,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:45:45,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:45:45,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:45:45,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:45:45,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:45:45,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:45:45,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:45:45,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:45:45,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:45:45,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:45:45,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:45:45,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:45:45,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:45:45,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:45:45,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:45:45,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:45:45,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:45:45,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:45:45,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:45:45,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:45:45,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:45:45,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:45:45,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:45:45,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:45:45,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:45:45,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:45:45,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:45:45,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:45:45,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:45:45,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:45:45,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:45:45,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:45:45,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:45:45,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:45:45,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:45:45,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:45:45,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:45:45,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:45:45,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:45:45,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:45:45,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:45:45,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:45:45,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:45:45,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:45:45,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:45:45,544 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:45:45,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:45:45,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:45:45,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:45:45,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:45:45,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:45:45,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:45:45,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:45:45,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:45:45,546 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:45:45,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:45:45,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:45:45,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:45:45,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:45:45,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:45:45,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:45:45,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:45:45,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:45:45,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:45:45,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:45:45,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:45:45,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:45:45,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:45:45,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:45:45,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:45:45,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:45:46,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:45:46,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:45:46,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:45:46,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:45:46,057 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:45:46,058 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-09-25 00:45:46,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b352dd6/70b9cedfcebe4f1282f3e5e44027b5f0/FLAG40d5e569e [2020-09-25 00:45:46,795 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:45:46,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-09-25 00:45:46,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b352dd6/70b9cedfcebe4f1282f3e5e44027b5f0/FLAG40d5e569e [2020-09-25 00:45:47,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b352dd6/70b9cedfcebe4f1282f3e5e44027b5f0 [2020-09-25 00:45:47,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:45:47,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:45:47,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:45:47,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:45:47,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:45:47,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f49550a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47, skipping insertion in model container [2020-09-25 00:45:47,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:45:47,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:45:47,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:45:47,664 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:45:47,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:45:47,781 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:45:47,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47 WrapperNode [2020-09-25 00:45:47,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:45:47,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:45:47,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:45:47,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:45:47,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (1/1) ... [2020-09-25 00:45:47,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:45:47,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:45:47,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:45:47,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:45:47,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:45:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:45:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:45:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:45:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:45:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:45:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:45:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:45:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:45:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:45:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:45:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:45:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:45:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:45:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:45:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:45:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:45:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:45:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:45:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:45:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:45:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:45:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:45:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:45:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:45:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:45:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:45:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:45:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:45:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:45:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:45:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:45:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:45:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:45:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:45:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:45:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:45:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:45:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:45:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:45:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:45:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:45:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 00:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:45:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:45:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:45:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:45:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:45:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:45:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:45:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:45:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:45:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:45:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:45:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:45:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:45:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:45:49,258 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:45:49,258 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:45:49,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:45:49 BoogieIcfgContainer [2020-09-25 00:45:49,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:45:49,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:45:49,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:45:49,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:45:49,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:45:47" (1/3) ... [2020-09-25 00:45:49,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c7c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:45:49, skipping insertion in model container [2020-09-25 00:45:49,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:45:47" (2/3) ... [2020-09-25 00:45:49,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c7c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:45:49, skipping insertion in model container [2020-09-25 00:45:49,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:45:49" (3/3) ... [2020-09-25 00:45:49,276 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2020-09-25 00:45:49,290 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:45:49,304 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:45:49,330 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:45:49,370 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:45:49,371 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:45:49,371 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:45:49,371 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:45:49,371 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:45:49,372 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:45:49,372 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:45:49,372 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:45:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-25 00:45:49,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:45:49,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:45:49,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:45:49,464 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:45:49,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:45:49,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1997357688, now seen corresponding path program 1 times [2020-09-25 00:45:49,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:45:49,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977127986] [2020-09-25 00:45:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:45:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:50,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:50,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:50,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:52,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:52,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:54,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:54,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:45:54,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:45:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 00:45:54,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:54,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:45:54,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:45:54,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:45:54,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:45:55,395 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:45:55,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:45:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:55,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:55,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:55,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:45:55,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:55,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 00:45:55,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:55,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:45:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:55,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:55,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:55,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:55,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:45:55,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:55,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:55,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:55,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:55,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:55,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:45:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:55,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:55,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:55,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:55,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:45:55,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:55,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:55,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:45:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:55,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:55,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:55,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:55,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:55,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:45:55,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:55,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:45:55,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:45:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:55,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:55,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:55,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:45:55,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:55,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:45:55,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:45:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:45:55,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:55,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:45:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:55,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:55,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:55,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:55,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:55,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:45:55,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:55,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:45:55,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:55,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:45:55,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:45:55,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:45:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:45:55,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:45:55,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:45:55,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:45:55,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:45:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:45:55,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:45:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:45:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:45:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:45:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:45:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:45:55,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977127986] [2020-09-25 00:45:55,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:45:55,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:45:55,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312506678] [2020-09-25 00:45:55,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:45:55,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:45:55,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:45:55,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:45:55,803 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 8 states. [2020-09-25 00:45:56,433 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:45:57,700 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:45:58,080 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:45:58,463 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:45:58,832 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:45:59,177 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:45:59,974 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:46:00,288 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:00,675 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:01,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:01,922 INFO L93 Difference]: Finished difference Result 588 states and 732 transitions. [2020-09-25 00:46:01,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:46:01,926 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:46:01,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:01,949 INFO L225 Difference]: With dead ends: 588 [2020-09-25 00:46:01,950 INFO L226 Difference]: Without dead ends: 393 [2020-09-25 00:46:01,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:46:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-25 00:46:02,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 351. [2020-09-25 00:46:02,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-09-25 00:46:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 402 transitions. [2020-09-25 00:46:02,101 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 402 transitions. Word has length 142 [2020-09-25 00:46:02,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:02,102 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 402 transitions. [2020-09-25 00:46:02,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:46:02,103 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 402 transitions. [2020-09-25 00:46:02,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 00:46:02,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:02,112 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:02,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:46:02,113 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:02,113 INFO L82 PathProgramCache]: Analyzing trace with hash 362061811, now seen corresponding path program 1 times [2020-09-25 00:46:02,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:02,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676069617] [2020-09-25 00:46:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:02,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:02,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:02,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:02,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:04,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:04,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 00:46:07,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:46:07,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 00:46:07,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 00:46:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:07,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:07,476 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:07,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:07,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 00:46:07,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:07,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:07,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:07,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:07,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:07,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:07,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:07,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:07,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:07,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:07,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:07,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:07,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:07,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:07,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:07,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:07,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:07,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:07,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:07,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:07,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:07,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:07,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:07,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:07,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:07,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 00:46:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:46:07,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:46:07,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:07,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:07,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:07,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:46:07,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:46:07,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:07,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:07,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:07,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:07,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:07,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:07,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:07,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:07,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:07,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:46:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:46:07,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 00:46:07,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:07,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:46:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:07,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:07,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:07,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:46:07,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:07,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 00:46:07,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:07,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:46:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:07,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:07,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:08,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:08,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:46:08,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:08,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:46:08,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:08,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:46:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:08,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:46:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:08,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:08,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:08,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:46:08,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:08,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:08,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:08,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:08,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:08,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:08,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:46:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:08,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:08,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:08,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:46:08,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:08,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:08,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:08,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:08,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:46:08,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 00:46:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:08,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:08,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:08,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:08,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:08,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:08,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:08,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 00:46:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:08,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:08,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:08,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:08,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:08,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:08,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:46:08,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676069617] [2020-09-25 00:46:08,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:46:08,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:46:08,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809477180] [2020-09-25 00:46:08,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:46:08,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:08,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:46:08,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:46:08,137 INFO L87 Difference]: Start difference. First operand 351 states and 402 transitions. Second operand 10 states. [2020-09-25 00:46:09,628 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:46:09,947 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:46:10,262 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:46:10,586 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:10,937 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:46:11,245 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:12,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:12,297 INFO L93 Difference]: Finished difference Result 700 states and 873 transitions. [2020-09-25 00:46:12,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:46:12,299 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2020-09-25 00:46:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:12,304 INFO L225 Difference]: With dead ends: 700 [2020-09-25 00:46:12,305 INFO L226 Difference]: Without dead ends: 459 [2020-09-25 00:46:12,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:46:12,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-09-25 00:46:12,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 359. [2020-09-25 00:46:12,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-25 00:46:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 410 transitions. [2020-09-25 00:46:12,378 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 410 transitions. Word has length 205 [2020-09-25 00:46:12,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:12,382 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 410 transitions. [2020-09-25 00:46:12,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:46:12,382 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 410 transitions. [2020-09-25 00:46:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 00:46:12,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:12,385 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:12,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:46:12,386 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:12,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:12,386 INFO L82 PathProgramCache]: Analyzing trace with hash -611808365, now seen corresponding path program 1 times [2020-09-25 00:46:12,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:12,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60015306] [2020-09-25 00:46:12,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:12,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:12,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:12,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:12,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:15,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:15,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:17,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:17,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 00:46:17,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:46:17,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 00:46:17,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 00:46:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:46:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:17,799 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:17,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:17,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:17,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:17,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:17,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:17,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 00:46:17,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:17,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:17,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:17,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:17,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:17,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:17,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:17,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:17,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:17,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:17,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:17,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:17,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:17,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:46:17,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:17,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:17,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:17,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:17,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:17,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:17,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:46:17,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:17,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:17,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:17,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:17,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:17,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:17,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:17,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:17,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:17,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:17,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:17,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:17,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:17,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 00:46:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:17,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:17,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:17,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:46:17,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:17,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:46:17,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:17,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:17,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:17,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:17,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:17,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:46:17,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:46:17,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:18,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:18,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:18,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:18,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:18,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:18,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:18,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:18,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:18,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:18,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:18,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:18,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:46:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:18,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:18,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:18,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:46:18,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:18,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 00:46:18,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:46:18,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:46:18,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:18,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:18,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:18,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:18,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:46:18,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:18,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:46:18,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:18,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:46:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:46:18,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:18,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:18,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:18,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:18,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:46:18,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:18,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 00:46:18,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:46:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:46:18,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:18,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:46:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:18,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:18,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:18,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:46:18,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:18,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:46:18,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:46:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:18,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:18,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:18,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:46:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:18,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:18,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:18,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:46:18,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:18,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:18,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:18,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:18,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:46:18,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:18,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:18,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 00:46:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:18,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:18,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:18,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:18,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:18,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:18,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:18,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:18,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:18,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:18,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 00:46:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:18,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:18,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:18,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:18,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:18,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:18,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:18,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:18,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:18,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:18,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:46:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:46:18,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60015306] [2020-09-25 00:46:18,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:46:18,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 00:46:18,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292661681] [2020-09-25 00:46:18,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:46:18,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:18,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:46:18,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:46:18,378 INFO L87 Difference]: Start difference. First operand 359 states and 410 transitions. Second operand 9 states. [2020-09-25 00:46:19,816 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:20,151 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:46:20,510 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:20,874 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:46:21,192 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:22,240 INFO L93 Difference]: Finished difference Result 714 states and 911 transitions. [2020-09-25 00:46:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:46:22,241 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2020-09-25 00:46:22,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:22,246 INFO L225 Difference]: With dead ends: 714 [2020-09-25 00:46:22,246 INFO L226 Difference]: Without dead ends: 465 [2020-09-25 00:46:22,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:46:22,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-09-25 00:46:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 365. [2020-09-25 00:46:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 00:46:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 416 transitions. [2020-09-25 00:46:22,320 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 416 transitions. Word has length 205 [2020-09-25 00:46:22,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:22,321 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 416 transitions. [2020-09-25 00:46:22,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:46:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 416 transitions. [2020-09-25 00:46:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 00:46:22,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:22,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:22,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:46:22,324 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:22,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:22,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1393888631, now seen corresponding path program 1 times [2020-09-25 00:46:22,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:22,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571944211] [2020-09-25 00:46:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:22,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:22,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:24,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 00:46:27,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:46:27,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 00:46:27,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:46:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 00:46:27,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 00:46:27,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,693 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:46:27,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:46:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:46:27,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 00:46:27,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:27,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:46:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:27,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:27,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:27,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:46:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:27,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:46:27,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:27,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:27,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:46:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:27,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:27,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:27,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:46:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:46:27,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:27,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:27,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:27,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 00:46:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:46:27,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 00:46:27,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:27,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:46:27,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:46:27,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:46:27,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:46:27,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:46:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:46:27,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:46:27,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:46:27,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:46:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:46:27,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:46:27,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:27,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:46:27,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:27,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:46:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:27,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:27,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:27,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:46:27,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:27,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:46:27,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:46:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:46:27,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:28,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 00:46:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:28,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:28,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:28,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:28,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:28,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:46:28,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:28,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:46:28,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:46:28,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:46:28,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:28,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 00:46:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:28,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:28,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:46:28,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:46:28,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:46:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:46:28,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:46:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:46:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:46:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:46:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:46:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:46:28,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571944211] [2020-09-25 00:46:28,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:46:28,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:46:28,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082418184] [2020-09-25 00:46:28,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:46:28,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:46:28,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:46:28,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:46:28,079 INFO L87 Difference]: Start difference. First operand 365 states and 416 transitions. Second operand 9 states. [2020-09-25 00:46:28,952 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:46:29,538 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:46:29,886 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:30,701 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:31,037 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:31,407 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:31,764 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:46:32,074 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:46:34,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:46:34,013 INFO L93 Difference]: Finished difference Result 895 states and 1200 transitions. [2020-09-25 00:46:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:46:34,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-25 00:46:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:46:34,020 INFO L225 Difference]: With dead ends: 895 [2020-09-25 00:46:34,020 INFO L226 Difference]: Without dead ends: 640 [2020-09-25 00:46:34,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:46:34,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-09-25 00:46:34,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 514. [2020-09-25 00:46:34,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-09-25 00:46:34,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 623 transitions. [2020-09-25 00:46:34,092 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 623 transitions. Word has length 181 [2020-09-25 00:46:34,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:46:34,093 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 623 transitions. [2020-09-25 00:46:34,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:46:34,093 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 623 transitions. [2020-09-25 00:46:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-25 00:46:34,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:46:34,098 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:46:34,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:46:34,099 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:46:34,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:46:34,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1303666551, now seen corresponding path program 1 times [2020-09-25 00:46:34,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:46:34,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904922319] [2020-09-25 00:46:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:46:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:46:34,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:34,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:34,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:34,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:34,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:34,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:35,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:36,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:36,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:46:37,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking...