/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:54:44,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:54:44,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:54:44,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:54:44,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:54:44,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:54:44,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:54:44,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:54:44,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:54:44,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:54:44,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:54:44,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:54:44,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:54:44,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:54:44,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:54:44,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:54:44,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:54:44,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:54:44,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:54:44,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:54:44,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:54:44,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:54:44,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:54:44,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:54:44,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:54:44,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:54:44,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:54:44,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:54:44,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:54:44,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:54:44,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:54:44,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:54:44,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:54:44,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:54:44,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:54:44,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:54:44,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:54:44,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:54:44,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:54:44,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:54:44,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:54:44,521 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 10:54:44,564 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:54:44,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:54:44,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:54:44,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:54:44,567 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:54:44,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:54:44,567 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:54:44,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:54:44,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:54:44,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:54:44,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:54:44,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:54:44,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:54:44,570 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:54:44,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:54:44,570 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:54:44,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:54:44,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:54:44,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:54:44,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:54:44,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:54:44,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:54:44,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:54:44,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:54:44,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:54:44,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:54:44,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:54:44,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:54:44,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:54:44,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:54:45,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:54:45,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:54:45,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:54:45,066 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:54:45,066 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:54:45,068 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-25 10:54:45,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa3acacc8/22815c07f70640e29a52457289596361/FLAGf53cf0a64 [2020-09-25 10:54:45,754 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:54:45,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-25 10:54:45,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa3acacc8/22815c07f70640e29a52457289596361/FLAGf53cf0a64 [2020-09-25 10:54:46,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa3acacc8/22815c07f70640e29a52457289596361 [2020-09-25 10:54:46,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:54:46,059 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:54:46,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:54:46,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:54:46,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:54:46,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46, skipping insertion in model container [2020-09-25 10:54:46,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:54:46,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:54:46,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:54:46,702 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:54:46,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:54:46,878 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:54:46,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46 WrapperNode [2020-09-25 10:54:46,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:54:46,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:54:46,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:54:46,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:54:46,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (1/1) ... [2020-09-25 10:54:46,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:54:46,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:54:46,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:54:46,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:54:46,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:54:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:54:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:54:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:54:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:54:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:54:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:54:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:54:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:54:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:54:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:54:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:54:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:54:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:54:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:54:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:54:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:54:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:54:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:54:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:54:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:54:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:54:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:54:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:54:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:54:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:54:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:54:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:54:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:54:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:54:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:54:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:54:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:54:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:54:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:54:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:54:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:54:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:54:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:54:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 10:54:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 10:54:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:54:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:54:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:54:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:54:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:54:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:54:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:54:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:54:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:54:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:54:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:54:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:54:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:54:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:54:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:54:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:54:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:54:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:54:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:54:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:54:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:54:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:54:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:54:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:54:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:54:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:54:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:54:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:54:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 10:54:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:54:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:54:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:54:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:54:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:54:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:54:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:54:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:54:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:54:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:54:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:54:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:54:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:54:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 10:54:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:54:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:54:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:54:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:54:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:54:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:54:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:54:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:54:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:54:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:54:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:54:48,238 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:54:48,238 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:54:48,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:54:48 BoogieIcfgContainer [2020-09-25 10:54:48,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:54:48,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:54:48,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:54:48,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:54:48,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:54:46" (1/3) ... [2020-09-25 10:54:48,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1559513d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:54:48, skipping insertion in model container [2020-09-25 10:54:48,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:46" (2/3) ... [2020-09-25 10:54:48,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1559513d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:54:48, skipping insertion in model container [2020-09-25 10:54:48,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:54:48" (3/3) ... [2020-09-25 10:54:48,256 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-09-25 10:54:48,267 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:54:48,279 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:54:48,302 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:54:48,337 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:54:48,338 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:54:48,338 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:54:48,338 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:54:48,338 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:54:48,338 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:54:48,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:54:48,339 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:54:48,371 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 10:54:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 10:54:48,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:54:48,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:54:48,393 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:54:48,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:54:48,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1778587784, now seen corresponding path program 1 times [2020-09-25 10:54:48,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:54:48,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88941904] [2020-09-25 10:54:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:54:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:48,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:49,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:49,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:50,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:51,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:53,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:53,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 10:54:53,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:54:53,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 10:54:53,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:53,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:53,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:54:53,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 10:54:53,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:54:54,304 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:54:54,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:54:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:54,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:54,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:54,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:54:54,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:54,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-25 10:54:54,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:54,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:54,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:54:54,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:54,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:54:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:54,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:54,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:54,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:54,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:54:54,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:54,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:54,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:54,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:54,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:54:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:54,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:54,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:54,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:54,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:54,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:54:54,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:54,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:54,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:54,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:54,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:54:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:54,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:54,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:54,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:54,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:54,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:54:54,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:54,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:54,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:54:54,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:54,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:54:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:54,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:54,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:54,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:54,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:54,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:54:54,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:54,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:54,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:54,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:54,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:54:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:54,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:54,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:54,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:54:54,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:54,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:54:54,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:54,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:54:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:54,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 10:54:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:54,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:54,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:54,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:54,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:54:54,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:54,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:54:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:54:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:54:54,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:54,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 10:54:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:54,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:54,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:54,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:54,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:54:54,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:54,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:54,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:54:54,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:54:54,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:54:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:54,847 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 10:54:54,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88941904] [2020-09-25 10:54:54,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:54:54,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:54:54,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518705809] [2020-09-25 10:54:54,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:54:54,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:54:54,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:54:54,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:54:54,879 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 5 states. [2020-09-25 10:54:55,454 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:54:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:54:56,625 INFO L93 Difference]: Finished difference Result 500 states and 593 transitions. [2020-09-25 10:54:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:54:56,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 10:54:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:54:56,659 INFO L225 Difference]: With dead ends: 500 [2020-09-25 10:54:56,660 INFO L226 Difference]: Without dead ends: 317 [2020-09-25 10:54:56,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:54:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-25 10:54:56,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 268. [2020-09-25 10:54:56,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 10:54:56,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 292 transitions. [2020-09-25 10:54:56,777 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 292 transitions. Word has length 148 [2020-09-25 10:54:56,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:54:56,778 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 292 transitions. [2020-09-25 10:54:56,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:54:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 292 transitions. [2020-09-25 10:54:56,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 10:54:56,784 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:54:56,785 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] [2020-09-25 10:54:56,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:54:56,785 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:54:56,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:54:56,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2042254420, now seen corresponding path program 1 times [2020-09-25 10:54:56,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:54:56,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624478807] [2020-09-25 10:54:56,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:54:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:56,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:57,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:59,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:00,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:00,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:01,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:01,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 10:55:01,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:55:01,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 10:55:01,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:01,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:01,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:55:01,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 10:55:01,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 10:55:01,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,298 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:55:02,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:55:02,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 10:55:02,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:55:02,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:55:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:02,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:02,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:02,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:02,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:55:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:02,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:02,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:55:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:02,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:02,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:02,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:02,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:55:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:02,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:02,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:55:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:55:02,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:02,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:55:02,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 10:55:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:55:02,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:55:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 10:55:02,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:55:02,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:55:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:55:02,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:02,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:02,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:02,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:55:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:02,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:02,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:02,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:02,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 10:55:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:02,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:55:02,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:55:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:02,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 10:55:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:02,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:02,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:02,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:02,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:55:02,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:02,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:02,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:02,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:55:02,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:02,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:02,934 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 10:55:02,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624478807] [2020-09-25 10:55:02,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:02,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:55:02,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397705629] [2020-09-25 10:55:02,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:55:02,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:02,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:55:02,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:55:02,945 INFO L87 Difference]: Start difference. First operand 268 states and 292 transitions. Second operand 10 states. [2020-09-25 10:55:03,577 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:55:05,004 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 10:55:05,646 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 194 [2020-09-25 10:55:06,465 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 10:55:06,879 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-09-25 10:55:07,806 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:55:08,101 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 10:55:08,418 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 10:55:09,100 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:55:09,767 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 10:55:10,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:55:10,408 INFO L93 Difference]: Finished difference Result 691 states and 838 transitions. [2020-09-25 10:55:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 10:55:10,409 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-25 10:55:10,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:55:10,416 INFO L225 Difference]: With dead ends: 691 [2020-09-25 10:55:10,416 INFO L226 Difference]: Without dead ends: 520 [2020-09-25 10:55:10,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2020-09-25 10:55:10,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-09-25 10:55:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 393. [2020-09-25 10:55:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-09-25 10:55:10,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 436 transitions. [2020-09-25 10:55:10,505 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 436 transitions. Word has length 171 [2020-09-25 10:55:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:55:10,506 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 436 transitions. [2020-09-25 10:55:10,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:55:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 436 transitions. [2020-09-25 10:55:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 10:55:10,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:10,511 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 10:55:10,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:55:10,512 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:10,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:10,512 INFO L82 PathProgramCache]: Analyzing trace with hash -388621754, now seen corresponding path program 1 times [2020-09-25 10:55:10,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:10,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255532382] [2020-09-25 10:55:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:10,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:10,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:10,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:12,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:13,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:13,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:15,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 10:55:15,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:55:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 10:55:15,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:15,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 10:55:15,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:55:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-25 10:55:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:55:15,974 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:55:15,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:55:16,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 10:55:16,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:55:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:55:16,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:55:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:16,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:16,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:55:16,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:55:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:16,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:16,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:55:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:16,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:16,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:55:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:16,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:16,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:16,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:55:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:55:16,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:16,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:55:16,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 10:55:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:55:16,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:55:16,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:55:16,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:55:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:55:16,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:55:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:55:16,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:55:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:55:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:55:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:55:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:55:16,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:55:16,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:55:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:55:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:55:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:55:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:16,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:16,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:16,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 10:55:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:16,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:16,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:16,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:16,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 10:55:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:16,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:16,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:16,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:16,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:55:16,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:16,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:55:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:16,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:55:16,615 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 10:55:16,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255532382] [2020-09-25 10:55:16,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:16,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 10:55:16,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502473087] [2020-09-25 10:55:16,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:55:16,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:16,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:55:16,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:55:16,618 INFO L87 Difference]: Start difference. First operand 393 states and 436 transitions. Second operand 12 states. [2020-09-25 10:55:17,260 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:55:19,058 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:55:19,360 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:55:19,747 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:20,697 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:55:21,019 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:55:21,408 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:55:21,756 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:55:22,078 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:55:23,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:55:23,134 INFO L93 Difference]: Finished difference Result 1042 states and 1290 transitions. [2020-09-25 10:55:23,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 10:55:23,135 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2020-09-25 10:55:23,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:55:23,143 INFO L225 Difference]: With dead ends: 1042 [2020-09-25 10:55:23,143 INFO L226 Difference]: Without dead ends: 764 [2020-09-25 10:55:23,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=309, Invalid=813, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 10:55:23,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-09-25 10:55:23,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 578. [2020-09-25 10:55:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-09-25 10:55:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 657 transitions. [2020-09-25 10:55:23,238 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 657 transitions. Word has length 176 [2020-09-25 10:55:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:55:23,238 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 657 transitions. [2020-09-25 10:55:23,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 10:55:23,239 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 657 transitions. [2020-09-25 10:55:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 10:55:23,243 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:23,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:55:23,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:55:23,244 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:23,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1401248748, now seen corresponding path program 1 times [2020-09-25 10:55:23,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:23,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151818850] [2020-09-25 10:55:23,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:23,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:23,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:27,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:28,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:28,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-25 10:55:28,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:55:28,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 10:55:28,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:28,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:28,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:55:28,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 10:55:28,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-25 10:55:28,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:28,697 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:55:28,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:28,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:28,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:28,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:55:28,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:28,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 10:55:28,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:28,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:28,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:28,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:28,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:28,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:28,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:55:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:28,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:28,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:28,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:28,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:28,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:28,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:28,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:28,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:28,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:55:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:28,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:28,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:28,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:28,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:28,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:28,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:55:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:28,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:28,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:28,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:28,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:28,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:28,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:28,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:28,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:28,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:55:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:28,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:28,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:28,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:28,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:28,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:28,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:28,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:28,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:55:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:28,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:28,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:28,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:55:28,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:28,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:28,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:28,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 10:55:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:28,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 10:55:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:28,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:28,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:28,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:55:28,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:28,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:28,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:28,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:28,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:55:28,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:28,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:55:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:28,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 10:55:29,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:55:29,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 10:55:29,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:29,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:55:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:29,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:55:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 10:55:29,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:55:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 10:55:29,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:55:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 10:55:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:55:29,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:29,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:55:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:55:29,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:29,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 10:55:29,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:55:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 10:55:29,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:29,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:55:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:55:29,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:29,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:29,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:29,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:55:29,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:55:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 10:55:29,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:29,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:55:29,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 10:55:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:29,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:55:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:55:29,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:29,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:55:29,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:55:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:29,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:29,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:29,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:29,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:29,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 10:55:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:55:29,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:29,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:29,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:55:29,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-25 10:55:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:29,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:29,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:29,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:29,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:29,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:29,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-25 10:55:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:29,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:29,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:29,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:29,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:29,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:29,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:29,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:29,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:29,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:29,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:29,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:29,694 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 10:55:29,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151818850] [2020-09-25 10:55:29,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:29,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 10:55:29,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846940338] [2020-09-25 10:55:29,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:55:29,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:29,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:55:29,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:55:29,700 INFO L87 Difference]: Start difference. First operand 578 states and 657 transitions. Second operand 12 states. [2020-09-25 10:55:30,398 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:55:31,472 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:55:31,789 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 10:55:32,139 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 10:55:32,484 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 10:55:32,841 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:55:33,154 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191