/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:01:45,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:01:45,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:01:45,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:01:45,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:01:45,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:01:45,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:01:45,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:01:45,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:01:45,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:01:45,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:01:45,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:01:45,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:01:45,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:01:45,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:01:45,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:01:45,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:01:45,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:01:45,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:01:45,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:01:45,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:01:45,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:01:45,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:01:45,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:01:45,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:01:45,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:01:45,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:01:45,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:01:45,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:01:45,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:01:45,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:01:45,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:01:45,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:01:45,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:01:45,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:01:45,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:01:45,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:01:45,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:01:45,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:01:45,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:01:45,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:01:45,406 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 03:01:45,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:01:45,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:01:45,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:01:45,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:01:45,458 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:01:45,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:01:45,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:01:45,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:01:45,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:01:45,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:01:45,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:01:45,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:01:45,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:01:45,461 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:01:45,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:01:45,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:01:45,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:01:45,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:01:45,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:01:45,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:01:45,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:01:45,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:01:45,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:01:45,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:01:45,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:01:45,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:01:45,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:01:45,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:01:45,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:01:45,465 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:01:45,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:01:45,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:01:45,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:01:45,945 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:01:45,945 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:01:45,947 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-25 03:01:46,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fa86c5fa/eaf54b8881f4430ca8d8696a4e75404f/FLAGdca732231 [2020-09-25 03:01:46,698 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:01:46,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-09-25 03:01:46,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fa86c5fa/eaf54b8881f4430ca8d8696a4e75404f/FLAGdca732231 [2020-09-25 03:01:46,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7fa86c5fa/eaf54b8881f4430ca8d8696a4e75404f [2020-09-25 03:01:46,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:01:46,929 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:01:46,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:01:46,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:01:46,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:01:46,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:01:46" (1/1) ... [2020-09-25 03:01:46,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:46, skipping insertion in model container [2020-09-25 03:01:46,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:01:46" (1/1) ... [2020-09-25 03:01:46,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:01:46,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:01:47,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:01:47,499 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:01:47,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:01:47,652 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:01:47,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47 WrapperNode [2020-09-25 03:01:47,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:01:47,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:01:47,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:01:47,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:01:47,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (1/1) ... [2020-09-25 03:01:47,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (1/1) ... [2020-09-25 03:01:47,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (1/1) ... [2020-09-25 03:01:47,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (1/1) ... [2020-09-25 03:01:47,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (1/1) ... [2020-09-25 03:01:47,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (1/1) ... [2020-09-25 03:01:47,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (1/1) ... [2020-09-25 03:01:47,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:01:47,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:01:47,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:01:47,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:01:47,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:01:47,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:01:47,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:01:47,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:01:47,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:01:47,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:01:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:01:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:01:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:01:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:01:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:01:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:01:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:01:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:01:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:01:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:01:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:01:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:01:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:01:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:01:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:01:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:01:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:01:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:01:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:01:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:01:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:01:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:01:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:01:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:01:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:01:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:01:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:01:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:01:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:01:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:01:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:01:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 03:01:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:01:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:01:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:01:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:01:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:01:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:01:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:01:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:01:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:01:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:01:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:01:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:01:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:01:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:01:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:01:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:01:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:01:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:01:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:01:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:01:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:01:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:01:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:01:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:01:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:01:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:01:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:01:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:01:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:01:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:01:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:01:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:01:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:01:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:01:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:01:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:01:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:01:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:01:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:01:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:01:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:01:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:01:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 03:01:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:01:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:01:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:01:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:01:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:01:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:01:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:01:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:01:49,172 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:01:49,173 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:01:49,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:01:49 BoogieIcfgContainer [2020-09-25 03:01:49,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:01:49,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:01:49,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:01:49,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:01:49,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:01:46" (1/3) ... [2020-09-25 03:01:49,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35501a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:01:49, skipping insertion in model container [2020-09-25 03:01:49,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:01:47" (2/3) ... [2020-09-25 03:01:49,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35501a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:01:49, skipping insertion in model container [2020-09-25 03:01:49,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:01:49" (3/3) ... [2020-09-25 03:01:49,190 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-09-25 03:01:49,201 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:01:49,213 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:01:49,237 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:01:49,273 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:01:49,273 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:01:49,274 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:01:49,274 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:01:49,274 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:01:49,274 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:01:49,274 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:01:49,274 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:01:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2020-09-25 03:01:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 03:01:49,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:01:49,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:01:49,325 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:01:49,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:01:49,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1598852952, now seen corresponding path program 1 times [2020-09-25 03:01:49,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:01:49,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775940656] [2020-09-25 03:01:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:01:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:49,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:50,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:50,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:52,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:52,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:54,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:54,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 03:01:54,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:01:54,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:01:54,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:01:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 03:01:54,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 03:01:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 03:01:55,378 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:01:55,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:01:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:55,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:55,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:55,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:01:55,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:55,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 03:01:55,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:55,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:55,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:55,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:01:55,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:55,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:01:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:55,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:55,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:55,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:55,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:01:55,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:55,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:55,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:01:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:55,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:55,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:55,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:55,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:55,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:01:55,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:01:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:55,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:55,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:55,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:01:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:01:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:55,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:01:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:55,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:55,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:55,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:01:55,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:55,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:01:55,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:55,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:01:55,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:55,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:01:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:55,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:55,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:55,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:55,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:01:55,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:01:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:01:55,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:55,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 03:01:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:01:55,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:01:55,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:01:55,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:01:55,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:01:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:01:55,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:01:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:01:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:01:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:01:55,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:01:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:01:56,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775940656] [2020-09-25 03:01:56,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:01:56,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:01:56,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254874610] [2020-09-25 03:01:56,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:01:56,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:01:56,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:01:56,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:01:56,134 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 8 states. [2020-09-25 03:01:56,794 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:01:58,400 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 03:01:59,044 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 03:01:59,442 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:01:59,847 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:02:00,178 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:00,892 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:02:01,230 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:02:01,628 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:02,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:02:02,830 INFO L93 Difference]: Finished difference Result 530 states and 674 transitions. [2020-09-25 03:02:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:02:02,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 03:02:02,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:02:02,855 INFO L225 Difference]: With dead ends: 530 [2020-09-25 03:02:02,855 INFO L226 Difference]: Without dead ends: 363 [2020-09-25 03:02:02,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:02:02,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-09-25 03:02:02,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 311. [2020-09-25 03:02:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-09-25 03:02:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 353 transitions. [2020-09-25 03:02:02,986 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 353 transitions. Word has length 142 [2020-09-25 03:02:02,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:02:02,987 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 353 transitions. [2020-09-25 03:02:02,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:02:02,988 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 353 transitions. [2020-09-25 03:02:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 03:02:02,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:02:02,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:02:02,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:02:02,995 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:02:02,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:02:02,995 INFO L82 PathProgramCache]: Analyzing trace with hash 429874630, now seen corresponding path program 1 times [2020-09-25 03:02:02,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:02:02,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019367281] [2020-09-25 03:02:02,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:02:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:03,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:03,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:04,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:08,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:08,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 03:02:08,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:02:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 03:02:08,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:02:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 03:02:08,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 03:02:08,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:08,554 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:02:08,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:02:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:08,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:08,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:08,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:02:08,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:08,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 03:02:08,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:08,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:02:08,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:08,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:02:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:08,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:08,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:08,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:08,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:08,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:08,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:08,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:08,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:08,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:02:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:08,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:08,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:08,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:08,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:08,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:08,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:08,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:02:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:08,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:08,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:08,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:08,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:02:08,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:08,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:08,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:02:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:08,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:08,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:08,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:08,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:08,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:08,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:08,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:08,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:08,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 03:02:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:09,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:09,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:09,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:09,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:02:09,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 03:02:09,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 03:02:09,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:09,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:09,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:09,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:09,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:02:09,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:09,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:02:09,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:09,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:09,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:02:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:09,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:09,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:09,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:02:09,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:09,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:02:09,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:09,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:02:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:09,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:09,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:09,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:02:09,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:09,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:09,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:09,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:09,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:09,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 03:02:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:09,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:09,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:09,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:09,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:09,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:02:09,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:09,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:02:09,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 03:02:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:09,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:09,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:09,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:09,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:09,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:09,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:02:09,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019367281] [2020-09-25 03:02:09,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:02:09,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:02:09,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394784739] [2020-09-25 03:02:09,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:02:09,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:02:09,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:02:09,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:02:09,232 INFO L87 Difference]: Start difference. First operand 311 states and 353 transitions. Second operand 9 states. [2020-09-25 03:02:09,694 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:02:10,461 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:10,785 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:02:11,102 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:11,475 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:02:11,843 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:12,691 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:02:12,998 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 03:02:14,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:02:14,535 INFO L93 Difference]: Finished difference Result 768 states and 1043 transitions. [2020-09-25 03:02:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:02:14,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-25 03:02:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:02:14,544 INFO L225 Difference]: With dead ends: 768 [2020-09-25 03:02:14,545 INFO L226 Difference]: Without dead ends: 567 [2020-09-25 03:02:14,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:02:14,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-09-25 03:02:14,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 489. [2020-09-25 03:02:14,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-09-25 03:02:14,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 611 transitions. [2020-09-25 03:02:14,645 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 611 transitions. Word has length 176 [2020-09-25 03:02:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:02:14,647 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 611 transitions. [2020-09-25 03:02:14,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:02:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 611 transitions. [2020-09-25 03:02:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 03:02:14,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:02:14,653 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:02:14,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:02:14,653 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:02:14,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:02:14,654 INFO L82 PathProgramCache]: Analyzing trace with hash 91738889, now seen corresponding path program 1 times [2020-09-25 03:02:14,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:02:14,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681562224] [2020-09-25 03:02:14,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:02:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:14,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:14,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:15,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:15,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:19,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:19,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 03:02:19,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:02:19,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4440 [2020-09-25 03:02:19,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 03:02:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 03:02:19,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:19,479 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:02:19,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:02:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:19,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:19,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:19,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:02:19,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:19,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 03:02:19,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:19,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:19,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:19,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:02:19,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:19,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:02:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:19,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:19,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:19,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:19,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:19,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:19,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:02:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:19,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:19,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:19,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:19,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:19,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:19,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:19,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:19,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:19,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:19,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:02:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:19,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:19,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:19,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:19,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:19,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:02:19,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:19,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:02:19,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:02:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:19,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:19,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:19,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:19,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:19,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:19,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:19,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:19,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:02:19,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:19,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 03:02:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:19,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:19,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 03:02:20,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 03:02:20,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:20,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:20,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:02:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:20,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:02:20,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:20,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 03:02:20,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:02:20,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:02:20,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:02:20,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:20,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:02:20,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:20,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 03:02:20,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:20,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:20,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:02:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:20,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:02:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:02:20,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:02:20,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:20,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:02:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:02:20,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:20,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:20,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:02:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:20,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 03:02:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:02:20,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:20,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:02:20,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:20,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:20,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:20,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:20,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:20,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:02:20,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:20,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:20,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 20 [2020-09-25 03:02:20,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 03:02:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:02:20,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:20,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:02:20,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:20,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:20,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:02:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:20,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 03:02:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:20,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:20,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:20,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:20,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 03:02:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:20,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:20,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:20,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:20,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:20,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:20,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:20,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:20,435 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:02:20,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681562224] [2020-09-25 03:02:20,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:02:20,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:02:20,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987682716] [2020-09-25 03:02:20,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:02:20,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:02:20,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:02:20,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:02:20,439 INFO L87 Difference]: Start difference. First operand 489 states and 611 transitions. Second operand 12 states. [2020-09-25 03:02:20,984 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:02:22,112 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:22,428 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:02:22,762 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:02:23,103 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:23,442 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:02:23,751 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:25,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:02:25,243 INFO L93 Difference]: Finished difference Result 1056 states and 1523 transitions. [2020-09-25 03:02:25,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:02:25,243 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 205 [2020-09-25 03:02:25,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:02:25,251 INFO L225 Difference]: With dead ends: 1056 [2020-09-25 03:02:25,251 INFO L226 Difference]: Without dead ends: 677 [2020-09-25 03:02:25,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-09-25 03:02:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-09-25 03:02:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 508. [2020-09-25 03:02:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-09-25 03:02:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 630 transitions. [2020-09-25 03:02:25,415 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 630 transitions. Word has length 205 [2020-09-25 03:02:25,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:02:25,417 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 630 transitions. [2020-09-25 03:02:25,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:02:25,418 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 630 transitions. [2020-09-25 03:02:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 03:02:25,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:02:25,424 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:02:25,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:02:25,424 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:02:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:02:25,425 INFO L82 PathProgramCache]: Analyzing trace with hash -827346916, now seen corresponding path program 1 times [2020-09-25 03:02:25,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:02:25,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407707672] [2020-09-25 03:02:25,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:02:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:25,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:25,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:25,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 03:02:27,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:02:27,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1979 [2020-09-25 03:02:27,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:27,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 03:02:27,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 03:02:27,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,738 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:02:27,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:02:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:02:27,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:02:27,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:27,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:02:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:27,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:02:27,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:27,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:02:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:27,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:02:27,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:27,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:27,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:02:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:27,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:27,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:27,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:02:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:27,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:27,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:27,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:27,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:27,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:27,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 03:02:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:27,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:27,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 03:02:28,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:28,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 03:02:28,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:02:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:02:28,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:28,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:02:28,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:02:28,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 03:02:28,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:28,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:02:28,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:02:28,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:02:28,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 03:02:28,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:02:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:02:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:02:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:02:28,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:02:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:02:28,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:02:28,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:02:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:02:28,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:02:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:02:28,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:02:28,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:02:28,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 03:02:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:02:28,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:02:28,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:28,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:28,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 03:02:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:02:28,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:02:28,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:02:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 03:02:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:02:28,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:02:28,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 03:02:28,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:02:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:02:28,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:28,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:02:28,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-25 03:02:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:28,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:02:28,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 03:02:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:28,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:02:28,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:02:28,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:02:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:02:28,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:02:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:02:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:02:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:02:28,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:02:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 03:02:28,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407707672] [2020-09-25 03:02:28,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:02:28,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:02:28,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289784236] [2020-09-25 03:02:28,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:02:28,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:02:28,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:02:28,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:02:28,496 INFO L87 Difference]: Start difference. First operand 508 states and 630 transitions. Second operand 11 states. [2020-09-25 03:02:29,434 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:30,157 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:30,463 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:30,781 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:31,114 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:02:31,410 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:02:32,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:02:32,573 INFO L93 Difference]: Finished difference Result 964 states and 1247 transitions. [2020-09-25 03:02:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:02:32,574 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2020-09-25 03:02:32,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:02:32,578 INFO L225 Difference]: With dead ends: 964 [2020-09-25 03:02:32,578 INFO L226 Difference]: Without dead ends: 566 [2020-09-25 03:02:32,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:02:32,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-09-25 03:02:32,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 461. [2020-09-25 03:02:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-09-25 03:02:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 527 transitions. [2020-09-25 03:02:32,636 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 527 transitions. Word has length 223 [2020-09-25 03:02:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:02:32,637 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 527 transitions. [2020-09-25 03:02:32,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:02:32,637 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 527 transitions. [2020-09-25 03:02:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 03:02:32,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:02:32,641 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:02:32,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:02:32,642 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:02:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:02:32,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1546422777, now seen corresponding path program 1 times [2020-09-25 03:02:32,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:02:32,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137213631] [2020-09-25 03:02:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:02:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:02:32,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:02:33,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking...