/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:09:24,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:09:24,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:09:24,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:09:24,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:09:24,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:09:24,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:09:24,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:09:24,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:09:24,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:09:24,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:09:24,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:09:24,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:09:24,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:09:24,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:09:24,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:09:24,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:09:24,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:09:24,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:09:24,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:09:24,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:09:24,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:09:24,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:09:24,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:09:24,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:09:24,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:09:24,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:09:24,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:09:24,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:09:24,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:09:24,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:09:24,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:09:24,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:09:24,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:09:24,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:09:24,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:09:24,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:09:24,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:09:24,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:09:24,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:09:24,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:09:24,356 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 13:09:24,397 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:09:24,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:09:24,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:09:24,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:09:24,399 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:09:24,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:09:24,400 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:09:24,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:09:24,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:09:24,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:09:24,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:09:24,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:09:24,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:09:24,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:09:24,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:09:24,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:09:24,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:09:24,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:09:24,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:09:24,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:09:24,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:09:24,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:09:24,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:09:24,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:09:24,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:09:24,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:09:24,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:09:24,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:09:24,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:09:24,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:09:24,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:09:24,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:09:24,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:09:24,877 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:09:24,878 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:09:24,880 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-09-25 13:09:24,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffdee42da/fc1ca31d09744fb5a82cb21dbc83a983/FLAG76dc89388 [2020-09-25 13:09:25,560 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:09:25,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-09-25 13:09:25,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffdee42da/fc1ca31d09744fb5a82cb21dbc83a983/FLAG76dc89388 [2020-09-25 13:09:25,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ffdee42da/fc1ca31d09744fb5a82cb21dbc83a983 [2020-09-25 13:09:25,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:09:25,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:09:25,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:09:25,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:09:25,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:09:25,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:09:25" (1/1) ... [2020-09-25 13:09:25,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:25, skipping insertion in model container [2020-09-25 13:09:25,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:09:25" (1/1) ... [2020-09-25 13:09:25,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:09:25,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:09:26,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:09:26,516 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:09:26,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:09:26,653 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:09:26,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26 WrapperNode [2020-09-25 13:09:26,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:09:26,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:09:26,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:09:26,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:09:26,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (1/1) ... [2020-09-25 13:09:26,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (1/1) ... [2020-09-25 13:09:26,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (1/1) ... [2020-09-25 13:09:26,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (1/1) ... [2020-09-25 13:09:26,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (1/1) ... [2020-09-25 13:09:26,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (1/1) ... [2020-09-25 13:09:26,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (1/1) ... [2020-09-25 13:09:26,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:09:26,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:09:26,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:09:26,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:09:26,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (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 13:09:26,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:09:26,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:09:26,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:09:26,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 13:09:26,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 13:09:26,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:09:26,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:09:26,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:09:26,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:09:26,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:09:26,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:09:26,881 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:09:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:09:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:09:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 13:09:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:09:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:09:26,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:09:26,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:09:26,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:09:26,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:09:26,883 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:09:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:09:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:09:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:09:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:09:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:09:26,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:09:26,885 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:09:26,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:09:26,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:09:26,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:09:26,885 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:09:26,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:09:26,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:09:26,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:09:26,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:09:26,886 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:09:26,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:09:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:09:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:09:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:09:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:09:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:09:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:09:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 13:09:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 13:09:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:09:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:09:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:09:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:09:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:09:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:09:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:09:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:09:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:09:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:09:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:09:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:09:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:09:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:09:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:09:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:09:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:09:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:09:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:09:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:09:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 13:09:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:09:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:09:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:09:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:09:26,893 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:09:26,893 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:09:26,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:09:26,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:09:26,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:09:26,893 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:09:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:09:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:09:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:09:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:09:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:09:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:09:26,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:09:28,148 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:09:28,149 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:09:28,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:09:28 BoogieIcfgContainer [2020-09-25 13:09:28,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:09:28,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:09:28,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:09:28,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:09:28,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:09:25" (1/3) ... [2020-09-25 13:09:28,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286620b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:09:28, skipping insertion in model container [2020-09-25 13:09:28,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:09:26" (2/3) ... [2020-09-25 13:09:28,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286620b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:09:28, skipping insertion in model container [2020-09-25 13:09:28,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:09:28" (3/3) ... [2020-09-25 13:09:28,165 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-09-25 13:09:28,177 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:09:28,187 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:09:28,209 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:09:28,239 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:09:28,239 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:09:28,240 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:09:28,240 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:09:28,240 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:09:28,240 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:09:28,240 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:09:28,240 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:09:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 13:09:28,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 13:09:28,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:09:28,287 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] [2020-09-25 13:09:28,288 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:09:28,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:09:28,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1518186743, now seen corresponding path program 1 times [2020-09-25 13:09:28,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:09:28,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180365748] [2020-09-25 13:09:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:09:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:28,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:28,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:29,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:30,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:31,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:33,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:33,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 13:09:33,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:09:33,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 13:09:33,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:33,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:33,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:09:33,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 13:09:33,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:09:34,284 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:09:34,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:09:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:34,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:34,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:34,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:09:34,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:34,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 13:09:34,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:34,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:34,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:09:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:09:34,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:09:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:34,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:34,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:34,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:34,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:34,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:09:34,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:34,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:34,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:34,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:34,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:09:34,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:34,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:09:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:34,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:34,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:34,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:34,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:34,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:09:34,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:34,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:34,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:34,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:09:34,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:34,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:09:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:34,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:34,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:34,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:34,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:34,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:09:34,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:34,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:34,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:09:34,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:34,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:09:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:34,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:34,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:34,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:34,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:09:34,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:34,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:09:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:34,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:09:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:34,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:34,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:34,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:09:34,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:34,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:09:34,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:34,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:34,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:09:34,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:34,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 13:09:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:34,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:34,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:34,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:34,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:34,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:09:34,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:34,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:34,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:09:34,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:34,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:09:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:34,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:34,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:34,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:34,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:34,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:09:34,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:34,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:09:34,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:34,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:35,049 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 13:09:35,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180365748] [2020-09-25 13:09:35,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:09:35,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:09:35,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804701090] [2020-09-25 13:09:35,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:09:35,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:09:35,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:09:35,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:09:35,081 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-09-25 13:09:35,678 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:09:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:09:36,680 INFO L93 Difference]: Finished difference Result 468 states and 552 transitions. [2020-09-25 13:09:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:09:36,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 13:09:36,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:09:36,702 INFO L225 Difference]: With dead ends: 468 [2020-09-25 13:09:36,702 INFO L226 Difference]: Without dead ends: 300 [2020-09-25 13:09:36,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:09:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-25 13:09:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 253. [2020-09-25 13:09:36,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 13:09:36,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-09-25 13:09:36,820 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 148 [2020-09-25 13:09:36,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:09:36,823 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-09-25 13:09:36,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:09:36,823 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-09-25 13:09:36,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 13:09:36,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:09:36,828 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] [2020-09-25 13:09:36,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:09:36,829 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:09:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:09:36,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1239391004, now seen corresponding path program 1 times [2020-09-25 13:09:36,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:09:36,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618793864] [2020-09-25 13:09:36,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:09:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:36,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:37,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:37,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:40,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:41,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:41,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:41,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 13:09:41,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:09:41,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 13:09:41,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:41,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:09:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 13:09:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:09:41,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:42,267 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:09:42,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:09:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:09:42,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 13:09:42,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:42,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:42,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:09:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:42,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:09:42,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:42,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:42,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:09:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:42,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:09:42,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:42,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:09:42,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:09:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:42,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:09:42,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:42,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:42,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:09:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:42,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:09:42,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:42,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:42,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:09:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:09:42,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:09:42,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 13:09:42,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:42,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 13:09:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:09:42,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 13:09:42,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:42,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 13:09:42,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:09:42,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:09:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:42,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:09:42,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:42,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:42,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:09:42,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:09:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:42,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:09:42,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:42,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:09:42,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:09:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:42,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:42,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:42,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:42,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:42,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:09:42,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:42,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:09:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:42,627 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 13:09:42,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618793864] [2020-09-25 13:09:42,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:09:42,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:09:42,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508215842] [2020-09-25 13:09:42,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:09:42,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:09:42,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:09:42,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:09:42,633 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 6 states. [2020-09-25 13:09:43,220 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:09:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:09:45,936 INFO L93 Difference]: Finished difference Result 566 states and 723 transitions. [2020-09-25 13:09:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:09:45,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 13:09:45,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:09:45,949 INFO L225 Difference]: With dead ends: 566 [2020-09-25 13:09:45,950 INFO L226 Difference]: Without dead ends: 563 [2020-09-25 13:09:45,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:09:45,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-09-25 13:09:46,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 391. [2020-09-25 13:09:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-09-25 13:09:46,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 437 transitions. [2020-09-25 13:09:46,079 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 437 transitions. Word has length 157 [2020-09-25 13:09:46,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:09:46,080 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 437 transitions. [2020-09-25 13:09:46,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:09:46,080 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 437 transitions. [2020-09-25 13:09:46,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-25 13:09:46,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:09:46,086 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:46,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:09:46,087 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:09:46,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:09:46,087 INFO L82 PathProgramCache]: Analyzing trace with hash 271020501, now seen corresponding path program 1 times [2020-09-25 13:09:46,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:09:46,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179316721] [2020-09-25 13:09:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:09:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:46,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:46,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:46,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:46,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:46,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:48,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:49,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:49,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:51,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:51,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-09-25 13:09:51,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:09:51,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 13:09:51,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:51,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:51,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:09:51,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:09:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 13:09:51,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:51,494 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:09:51,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:09:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:51,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:51,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:51,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:09:51,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:51,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-25 13:09:51,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:51,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:09:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:51,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:09:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:51,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:51,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:51,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:51,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:51,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:09:51,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:51,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:51,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:51,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:51,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:09:51,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:51,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:09:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:51,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:51,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:51,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:51,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:51,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:09:51,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:51,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:09:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:51,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:09:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:51,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:51,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:51,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:51,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:51,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:09:51,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:51,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:51,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:51,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:51,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:09:51,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:51,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:09:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:51,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:51,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:51,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:51,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:51,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:09:51,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:51,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:51,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:09:51,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:51,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:09:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:51,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:51,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:51,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:09:51,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:51,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:09:51,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:51,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:51,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:09:51,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:51,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:09:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:51,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 13:09:52,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:09:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 13:09:52,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 13:09:52,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:52,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:09:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:52,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:09:52,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:52,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:09:52,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:52,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:52,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:09:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:52,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:52,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:52,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:09:52,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:09:52,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:09:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:52,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 13:09:52,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:52,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:09:52,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:52,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:52,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:52,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:52,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:09:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:52,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:52,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:09:52,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:52,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:52,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:52,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:09:52,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 13:09:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:52,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 13:09:52,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:09:52,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-09-25 13:09:52,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:09:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 13:09:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:09:52,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:52,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:09:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:52,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:09:52,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:52,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:09:52,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:52,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:52,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:52,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:09:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:52,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:52,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:09:52,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:52,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:09:52,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:09:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:52,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:52,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:52,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 13:09:52,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:52,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 13:09:52,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:52,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:09:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:09:52,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:09:53,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:09:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:53,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:53,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:53,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:53,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:53,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:09:53,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:53,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:09:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:09:53,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:09:53,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 13:09:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:53,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:53,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:53,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:09:53,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:53,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:53,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:09:53,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:53,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:09:53,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:09:53,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 13:09:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:53,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:53,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:53,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:09:53,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:53,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:09:53,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:53,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:53,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:53,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:09:53,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:53,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:53,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:09:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:53,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:53,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:53,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:09:53,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:09:53,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:53,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:09:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:53,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 13:09:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:53,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:53,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:53,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:53,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:53,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:09:53,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:53,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:09:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:53,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:53,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-25 13:09:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:09:53,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:09:53,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:09:53,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:09:53,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:09:53,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:09:53,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:09:53,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:09:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:09:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:09:53,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:09:53,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:09:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-09-25 13:09:53,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179316721] [2020-09-25 13:09:53,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:09:53,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 13:09:53,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063220548] [2020-09-25 13:09:53,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:09:53,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:09:53,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:09:53,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:09:53,269 INFO L87 Difference]: Start difference. First operand 391 states and 437 transitions. Second operand 12 states. [2020-09-25 13:09:53,792 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:09:54,983 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:09:55,356 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:09:55,756 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:09:56,467 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 13:09:57,142 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-25 13:09:57,818 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 13:09:58,443 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:09:58,782 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:10:00,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:10:00,496 INFO L93 Difference]: Finished difference Result 1080 states and 1348 transitions. [2020-09-25 13:10:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 13:10:00,498 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 234 [2020-09-25 13:10:00,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:10:00,505 INFO L225 Difference]: With dead ends: 1080 [2020-09-25 13:10:00,505 INFO L226 Difference]: Without dead ends: 786 [2020-09-25 13:10:00,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=218, Invalid=652, Unknown=0, NotChecked=0, Total=870 [2020-09-25 13:10:00,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-09-25 13:10:00,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 495. [2020-09-25 13:10:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-25 13:10:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 553 transitions. [2020-09-25 13:10:00,619 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 553 transitions. Word has length 234 [2020-09-25 13:10:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:10:00,621 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 553 transitions. [2020-09-25 13:10:00,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:10:00,621 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 553 transitions. [2020-09-25 13:10:00,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 13:10:00,628 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:10:00,629 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 13:10:00,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:10:00,629 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:10:00,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:10:00,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1154868064, now seen corresponding path program 1 times [2020-09-25 13:10:00,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:10:00,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188309758] [2020-09-25 13:10:00,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:10:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:00,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:00,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:00,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:01,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:01,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:02,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:02,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:04,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:05,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:05,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:05,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:05,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-25 13:10:05,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 13:10:05,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 13:10:05,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:05,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 13:10:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:10:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,021 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:10:06,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:10:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:10:06,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 13:10:06,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:10:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:06,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:10:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:06,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:10:06,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:06,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:10:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:06,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:10:06,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:10:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:06,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:10:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:10:06,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 13:10:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:10:06,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:10:06,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:10:06,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:10:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 13:10:06,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:10:06,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-25 13:10:06,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:10:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 13:10:06,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:10:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:10:06,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:10:06,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:10:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:06,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:06,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:10:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 13:10:06,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:10:06,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:10:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:06,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 13:10:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:06,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:06,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 13:10:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:10:06,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:10:06,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:10:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:10:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:10:06,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:10:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:10:06,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 13:10:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:06,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:10:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-25 13:10:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:06,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:06,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:10:06,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:10:06,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:10:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:10:06,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:10:06,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:10:06,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:10:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:10:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:10:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:10:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 13:10:06,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188309758] [2020-09-25 13:10:06,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:10:06,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 13:10:06,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540835818] [2020-09-25 13:10:06,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:10:06,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:10:06,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:10:06,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:10:06,834 INFO L87 Difference]: Start difference. First operand 495 states and 553 transitions. Second operand 8 states. [2020-09-25 13:10:07,830 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:10:09,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:10:09,253 INFO L93 Difference]: Finished difference Result 892 states and 1064 transitions. [2020-09-25 13:10:09,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:10:09,253 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 216 [2020-09-25 13:10:09,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:10:09,263 INFO L225 Difference]: With dead ends: 892 [2020-09-25 13:10:09,263 INFO L226 Difference]: Without dead ends: 676 [2020-09-25 13:10:09,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:10:09,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-09-25 13:10:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 475. [2020-09-25 13:10:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-09-25 13:10:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 523 transitions. [2020-09-25 13:10:09,380 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 523 transitions. Word has length 216 [2020-09-25 13:10:09,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:10:09,381 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 523 transitions. [2020-09-25 13:10:09,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:10:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 523 transitions. [2020-09-25 13:10:09,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 13:10:09,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:10:09,384 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:09,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:10:09,384 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:10:09,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:10:09,385 INFO L82 PathProgramCache]: Analyzing trace with hash -47369314, now seen corresponding path program 1 times [2020-09-25 13:10:09,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:10:09,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980829995] [2020-09-25 13:10:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:10:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:10:09,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:09,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:09,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:11,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:10:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking...