/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=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:56:42,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:56:42,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:56:42,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:56:42,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:56:42,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:56:42,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:56:42,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:56:42,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:56:42,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:56:42,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:56:42,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:56:42,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:56:42,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:56:42,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:56:42,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:56:42,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:56:42,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:56:42,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:56:42,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:56:42,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:56:42,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:56:42,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:56:42,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:56:42,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:56:42,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:56:42,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:56:42,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:56:42,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:56:42,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:56:42,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:56:42,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:56:42,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:56:42,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:56:42,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:56:42,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:56:42,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:56:42,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:56:42,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:56:42,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:56:42,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:56:42,448 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 09:56:42,491 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:56:42,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:56:42,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:56:42,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:56:42,494 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:56:42,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:56:42,495 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:56:42,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:56:42,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:56:42,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:56:42,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:56:42,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:56:42,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:56:42,497 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:56:42,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:56:42,497 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:56:42,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:56:42,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:56:42,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:56:42,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:56:42,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:56:42,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:56:42,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:56:42,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:56:42,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:56:42,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:56:42,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:56:42,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:56:42,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:56:42,500 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 09:56:43,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:56:43,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:56:43,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:56:43,030 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:56:43,031 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:56:43,032 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2020-09-25 09:56:43,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d03d6cc19/33a4181968234e09a1230f1e254636c4/FLAG7d00cb080 [2020-09-25 09:56:43,815 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:56:43,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product61.cil.c [2020-09-25 09:56:43,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d03d6cc19/33a4181968234e09a1230f1e254636c4/FLAG7d00cb080 [2020-09-25 09:56:44,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d03d6cc19/33a4181968234e09a1230f1e254636c4 [2020-09-25 09:56:44,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:56:44,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:56:44,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:56:44,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:56:44,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:56:44,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701ef800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44, skipping insertion in model container [2020-09-25 09:56:44,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:56:44,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:56:44,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:56:44,708 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:56:44,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:56:44,837 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:56:44,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44 WrapperNode [2020-09-25 09:56:44,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:56:44,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:56:44,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:56:44,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:56:44,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (1/1) ... [2020-09-25 09:56:44,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:56:44,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:56:44,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:56:44,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:56:44,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (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 09:56:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:56:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:56:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:56:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:56:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:56:45,043 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:56:45,043 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:56:45,044 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:56:45,044 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:56:45,044 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:56:45,045 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:56:45,045 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:56:45,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:56:45,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:56:45,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:56:45,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:56:45,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:56:45,047 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:56:45,047 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:56:45,047 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:56:45,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:56:45,047 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:56:45,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:56:45,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:56:45,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:56:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:56:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:56:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:56:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:56:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:56:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:56:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 09:56:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 09:56:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 09:56:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:56:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:56:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:56:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:56:45,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:56:45,051 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:56:45,051 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:56:45,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:56:45,051 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:56:45,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:56:45,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:56:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:56:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:56:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:56:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:56:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:56:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:56:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:56:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:56:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:56:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:56:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:56:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:56:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:56:45,054 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:56:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:56:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:56:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 09:56:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 09:56:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:56:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:56:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:56:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:56:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:56:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:56:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:56:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:56:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:56:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:56:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:56:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:56:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:56:45,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:56:45,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:56:45,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:56:45,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:56:45,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:56:45,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:56:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:56:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:56:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:56:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:56:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:56:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:56:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:56:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:56:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 09:56:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:56:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:56:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:56:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:56:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:56:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:56:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:56:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:56:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:56:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:56:45,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:56:46,288 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:56:46,288 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:56:46,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:56:46 BoogieIcfgContainer [2020-09-25 09:56:46,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:56:46,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:56:46,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:56:46,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:56:46,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:56:44" (1/3) ... [2020-09-25 09:56:46,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dfdcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:56:46, skipping insertion in model container [2020-09-25 09:56:46,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:56:44" (2/3) ... [2020-09-25 09:56:46,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dfdcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:56:46, skipping insertion in model container [2020-09-25 09:56:46,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:56:46" (3/3) ... [2020-09-25 09:56:46,306 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2020-09-25 09:56:46,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:56:46,328 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:56:46,351 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:56:46,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:56:46,385 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:56:46,385 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:56:46,385 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:56:46,386 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:56:46,386 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:56:46,386 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:56:46,386 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:56:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2020-09-25 09:56:46,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 09:56:46,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:56:46,438 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:56:46,438 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:56:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:56:46,446 INFO L82 PathProgramCache]: Analyzing trace with hash 442401887, now seen corresponding path program 1 times [2020-09-25 09:56:46,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:56:46,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170079384] [2020-09-25 09:56:46,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:56:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:47,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:47,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:47,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:48,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:50,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:51,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:51,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 09:56:51,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:56:51,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-09-25 09:56:51,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:51,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:51,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:56:51,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:56:51,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 09:56:51,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 09:56:52,498 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:56:52,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:56:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:52,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:52,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:52,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:56:52,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:52,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 09:56:52,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:52,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:56:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:52,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:56:52,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:52,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:56:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:52,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:52,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:52,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:56:52,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:52,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:56:52,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:52,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:56:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:56:52,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:52,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:56:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:52,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:52,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:52,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:56:52,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:56:52,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:52,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:56:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:56:52,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:52,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:56:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:52,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:52,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:52,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:56:52,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:52,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:56:52,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:52,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:56:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:56:52,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:52,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:56:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:52,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:52,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:52,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:56:52,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:56:52,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:52,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:56:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:56:52,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:53,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:56:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:53,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:53,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:53,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:56:53,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:53,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:56:53,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:53,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:56:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:56:53,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:53,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:56:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:53,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:53,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:53,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:56:53,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:53,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:56:53,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:53,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:56:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:56:53,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:53,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:56:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:53,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:53,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:56:53,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:53,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:56:53,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:53,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:53,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:56:53,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:56:53,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:53,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 09:56:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:53,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:53,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:53,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:56:53,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:53,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:56:53,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:53,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:53,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:56:53,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:53,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:56:53,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:53,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:56:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:53,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:53,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:56:53,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:56:53,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:56:53,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:56:53,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:56:53,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:56:53,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:56:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:56:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:56:53,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:56:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 09:56:53,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170079384] [2020-09-25 09:56:53,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:56:53,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:56:53,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411834609] [2020-09-25 09:56:53,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:56:53,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:56:53,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:56:53,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:56:53,260 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 9 states. [2020-09-25 09:56:54,010 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:56:54,828 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:56:55,112 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:56:56,687 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:56:56,978 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:56:57,370 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:56:57,876 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:56:58,181 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:56:58,473 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:56:59,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:56:59,352 INFO L93 Difference]: Finished difference Result 705 states and 846 transitions. [2020-09-25 09:56:59,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 09:56:59,356 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 09:56:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:56:59,378 INFO L225 Difference]: With dead ends: 705 [2020-09-25 09:56:59,378 INFO L226 Difference]: Without dead ends: 470 [2020-09-25 09:56:59,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:56:59,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-09-25 09:56:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 424. [2020-09-25 09:56:59,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-09-25 09:56:59,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 474 transitions. [2020-09-25 09:56:59,527 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 474 transitions. Word has length 160 [2020-09-25 09:56:59,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:56:59,528 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 474 transitions. [2020-09-25 09:56:59,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:56:59,529 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 474 transitions. [2020-09-25 09:56:59,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 09:56:59,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:56:59,536 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:56:59,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:56:59,536 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:56:59,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:56:59,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1849080181, now seen corresponding path program 1 times [2020-09-25 09:56:59,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:56:59,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564097154] [2020-09-25 09:56:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:56:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:56:59,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:56:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:01,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:01,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 09:57:01,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:57:01,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2298 [2020-09-25 09:57:01,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:01,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:57:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-25 09:57:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:57:01,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,172 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:57:02,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:57:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:57:02,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 09:57:02,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:57:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:57:02,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:02,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:57:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:57:02,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:57:02,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:57:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:02,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:57:02,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:57:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:57:02,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:02,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:57:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:57:02,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:02,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:57:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:57:02,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:02,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:57:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:02,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:02,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 09:57:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:57:02,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 09:57:02,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:57:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:57:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:57:02,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:57:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 09:57:02,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 09:57:02,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:57:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 09:57:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:57:02,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:57:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:57:02,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 09:57:02,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:57:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:57:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:57:02,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:57:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:57:02,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:57:02,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:57:02,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:57:02,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:57:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:57:02,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:57:02,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:57:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:57:02,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:57:02,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:57:02,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:57:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 09:57:02,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:02,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:57:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:02,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:57:02,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 09:57:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:57:02,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:57:02,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-25 09:57:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:02,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:02,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:57:02,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-25 09:57:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:02,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:02,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:02,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:02,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:02,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:02,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:02,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:02,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:02,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:57:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:02,978 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 09:57:02,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564097154] [2020-09-25 09:57:02,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:57:02,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:57:02,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755829747] [2020-09-25 09:57:02,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:57:02,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:57:02,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:57:02,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:57:02,985 INFO L87 Difference]: Start difference. First operand 424 states and 474 transitions. Second operand 10 states. [2020-09-25 09:57:04,559 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:57:04,872 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:57:05,206 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:57:05,550 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:57:05,884 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:57:06,164 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:57:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:57:07,453 INFO L93 Difference]: Finished difference Result 825 states and 999 transitions. [2020-09-25 09:57:07,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:57:07,454 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 226 [2020-09-25 09:57:07,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:57:07,463 INFO L225 Difference]: With dead ends: 825 [2020-09-25 09:57:07,463 INFO L226 Difference]: Without dead ends: 516 [2020-09-25 09:57:07,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:57:07,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-25 09:57:07,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 438. [2020-09-25 09:57:07,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-09-25 09:57:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 494 transitions. [2020-09-25 09:57:07,584 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 494 transitions. Word has length 226 [2020-09-25 09:57:07,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:57:07,586 INFO L479 AbstractCegarLoop]: Abstraction has 438 states and 494 transitions. [2020-09-25 09:57:07,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:57:07,587 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 494 transitions. [2020-09-25 09:57:07,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-09-25 09:57:07,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:57:07,593 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:57:07,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:57:07,594 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:57:07,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:57:07,594 INFO L82 PathProgramCache]: Analyzing trace with hash 825996048, now seen corresponding path program 1 times [2020-09-25 09:57:07,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:57:07,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289145255] [2020-09-25 09:57:07,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:57:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:07,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:07,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:07,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:08,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:08,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:12,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:12,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-09-25 09:57:12,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:57:12,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 09:57:12,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:12,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:12,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:57:12,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:57:12,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 09:57:12,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:57:13,016 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:57:13,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:57:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:57:13,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 09:57:13,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:57:13,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:57:13,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 09:57:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:57:13,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:57:13,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:57:13,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:57:13,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 09:57:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:57:13,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:57:13,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:57:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:57:13,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 09:57:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:13,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:57:13,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:57:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:57:13,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:57:13,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 09:57:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:57:13,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:57:13,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:57:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:57:13,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:57:13,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 09:57:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:57:13,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:57:13,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:57:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:57:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:57:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 09:57:13,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 09:57:13,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:57:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:57:13,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 09:57:13,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:57:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:57:13,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:57:13,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:57:13,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 09:57:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:57:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:13,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:13,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 09:57:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:57:13,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:57:13,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:57:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 09:57:13,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:57:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:13,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:57:13,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:57:13,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:57:13,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 09:57:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 09:57:13,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:57:13,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:13,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:57:13,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:13,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:57:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:13,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:13,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:13,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:13,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 09:57:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 09:57:13,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:57:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 09:57:13,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:57:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 09:57:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:57:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:57:13,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:57:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 09:57:13,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 09:57:13,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:57:13,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:57:13,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:57:13,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:57:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:13,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:13,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:57:13,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:13,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 09:57:13,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:13,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:57:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 09:57:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:57:13,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:57:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:13,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:14,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:14,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:57:14,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:14,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:57:14,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:14,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:57:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:57:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:57:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:14,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:57:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:14,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:14,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:14,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:57:14,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:14,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:57:14,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:14,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:14,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:57:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:57:14,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:14,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:57:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:14,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:14,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:14,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:57:14,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:14,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:57:14,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:14,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:14,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:14,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:57:14,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:14,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:14,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:57:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:14,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:14,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:14,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 09:57:14,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:14,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:14,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:14,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:14,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:14,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:14,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:14,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:14,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:57:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:14,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:14,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:14,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:14,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:14,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:57:14,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:14,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:14,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:14,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 09:57:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:14,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:14,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:14,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:57:14,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:14,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:14,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:14,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:57:14,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:14,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:57:14,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-09-25 09:57:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:14,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:14,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:14,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:14,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:14,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:14,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:14,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:57:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:57:14,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-09-25 09:57:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:14,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:14,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:57:14,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:57:14,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:57:14,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:57:14,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:57:14,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:57:14,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:57:14,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:57:14,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:57:14,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:57:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 09:57:14,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289145255] [2020-09-25 09:57:14,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:57:14,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 09:57:14,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487832238] [2020-09-25 09:57:14,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 09:57:14,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:57:14,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 09:57:14,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:57:14,301 INFO L87 Difference]: Start difference. First operand 438 states and 494 transitions. Second operand 19 states. [2020-09-25 09:57:14,933 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:57:16,573 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:57:16,935 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:57:17,331 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:57:17,747 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:57:18,099 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:57:18,531 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:57:18,871 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:57:19,194 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:57:19,528 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:57:19,858 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:57:20,202 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:57:20,574 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:57:20,890 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:57:21,231 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:57:21,570 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:57:21,901 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:57:22,490 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 09:57:22,823 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:57:23,698 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-25 09:57:25,633 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 09:57:26,248 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-25 09:57:26,958 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 09:57:27,622 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-25 09:57:31,751 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:57:32,083 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:57:32,414 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:57:32,764 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:57:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:57:35,738 INFO L93 Difference]: Finished difference Result 1740 states and 2406 transitions. [2020-09-25 09:57:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-09-25 09:57:35,738 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 262 [2020-09-25 09:57:35,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:57:35,749 INFO L225 Difference]: With dead ends: 1740 [2020-09-25 09:57:35,750 INFO L226 Difference]: Without dead ends: 1374 [2020-09-25 09:57:35,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1328 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=864, Invalid=3966, Unknown=0, NotChecked=0, Total=4830 [2020-09-25 09:57:35,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2020-09-25 09:57:35,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1123. [2020-09-25 09:57:35,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2020-09-25 09:57:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1317 transitions. [2020-09-25 09:57:35,951 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1317 transitions. Word has length 262 [2020-09-25 09:57:35,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:57:35,952 INFO L479 AbstractCegarLoop]: Abstraction has 1123 states and 1317 transitions. [2020-09-25 09:57:35,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 09:57:35,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1317 transitions. [2020-09-25 09:57:35,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-25 09:57:35,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:57:35,958 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:57:35,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:57:35,958 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:57:35,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:57:35,959 INFO L82 PathProgramCache]: Analyzing trace with hash -722780298, now seen corresponding path program 1 times [2020-09-25 09:57:35,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:57:35,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503430429] [2020-09-25 09:57:35,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:57:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:57:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:57:36,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking...