/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=SHALLOWEST --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_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:33:33,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:33:33,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:33:33,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:33:33,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:33:33,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:33:33,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:33:33,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:33:33,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:33:33,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:33:33,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:33:33,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:33:33,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:33:33,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:33:33,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:33:33,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:33:33,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:33:33,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:33:33,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:33:33,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:33:33,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:33:33,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:33:33,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:33:33,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:33:33,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:33:33,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:33:33,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:33:33,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:33:33,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:33:33,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:33:33,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:33:33,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:33:33,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:33:33,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:33:33,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:33:33,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:33:33,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:33:33,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:33:33,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:33:33,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:33:33,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:33:33,297 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 [2020-09-24 23:33:33,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:33:33,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:33:33,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:33:33,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:33:33,351 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:33:33,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:33:33,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:33:33,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:33:33,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:33:33,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:33:33,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:33:33,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:33:33,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:33:33,354 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:33:33,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:33:33,354 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:33:33,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:33:33,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:33:33,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:33:33,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:33:33,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:33:33,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:33:33,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:33:33,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:33:33,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:33:33,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:33:33,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:33:33,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:33:33,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:33:33,357 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:33:33,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:33:33,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:33:33,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:33:33,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:33:33,856 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:33:33,857 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-24 23:33:33,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dbc23acb/1ef7158b45834319a14ab859099d0a8d/FLAG1c03a3e7d [2020-09-24 23:33:34,560 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:33:34,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product42.cil.c [2020-09-24 23:33:34,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dbc23acb/1ef7158b45834319a14ab859099d0a8d/FLAG1c03a3e7d [2020-09-24 23:33:34,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dbc23acb/1ef7158b45834319a14ab859099d0a8d [2020-09-24 23:33:34,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:33:34,857 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:33:34,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:33:34,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:33:34,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:33:34,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:33:34" (1/1) ... [2020-09-24 23:33:34,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:34, skipping insertion in model container [2020-09-24 23:33:34,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:33:34" (1/1) ... [2020-09-24 23:33:34,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:33:34,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:33:35,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:33:35,487 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:33:35,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:33:35,619 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:33:35,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35 WrapperNode [2020-09-24 23:33:35,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:33:35,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:33:35,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:33:35,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:33:35,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (1/1) ... [2020-09-24 23:33:35,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (1/1) ... [2020-09-24 23:33:35,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (1/1) ... [2020-09-24 23:33:35,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (1/1) ... [2020-09-24 23:33:35,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (1/1) ... [2020-09-24 23:33:35,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (1/1) ... [2020-09-24 23:33:35,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (1/1) ... [2020-09-24 23:33:35,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:33:35,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:33:35,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:33:35,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:33:35,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (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 [2020-09-24 23:33:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:33:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:33:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:33:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:33:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:33:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:33:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:33:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:33:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:33:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:33:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:33:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:33:35,821 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:33:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:33:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:33:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:33:35,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:33:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:33:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:33:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:33:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:33:35,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:33:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:33:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:33:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:33:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:33:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:33:35,824 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:33:35,825 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:33:35,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:33:35,825 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:33:35,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:33:35,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:33:35,825 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:33:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:33:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:33:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:33:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:33:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:33:35,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:33:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:33:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:33:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:33:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:33:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:33:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:33:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:33:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:33:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:33:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:33:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:33:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:33:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:33:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:33:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:33:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:33:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:33:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:33:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:33:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:33:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:33:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:33:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:33:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:33:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:33:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:33:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:33:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:33:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:33:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:33:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:33:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:33:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:33:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:33:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:33:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:33:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:33:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:33:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:33:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:33:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:33:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:33:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:33:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:33:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:33:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:33:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:33:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:33:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:33:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:33:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:33:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:33:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:33:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:33:37,100 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:33:37,100 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:33:37,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:33:37 BoogieIcfgContainer [2020-09-24 23:33:37,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:33:37,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:33:37,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:33:37,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:33:37,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:33:34" (1/3) ... [2020-09-24 23:33:37,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40728a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:33:37, skipping insertion in model container [2020-09-24 23:33:37,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:35" (2/3) ... [2020-09-24 23:33:37,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40728a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:33:37, skipping insertion in model container [2020-09-24 23:33:37,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:33:37" (3/3) ... [2020-09-24 23:33:37,117 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-09-24 23:33:37,130 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:33:37,142 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:33:37,165 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:33:37,200 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:33:37,200 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:33:37,200 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:33:37,200 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:33:37,200 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:33:37,201 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:33:37,201 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:33:37,201 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:33:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-24 23:33:37,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:33:37,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:37,249 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] [2020-09-24 23:33:37,250 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:37,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:37,258 INFO L82 PathProgramCache]: Analyzing trace with hash 769335885, now seen corresponding path program 1 times [2020-09-24 23:33:37,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:37,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518692667] [2020-09-24 23:33:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:37,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:37,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:39,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:40,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:40,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:42,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:42,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:33:42,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:33:42,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 23:33:42,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:33:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:33:42,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 23:33:42,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:33:43,124 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:43,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:43,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:43,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:43,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:43,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-24 23:33:43,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:43,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:33:43,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:43,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:43,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:43,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:43,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:43,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:43,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:33:43,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:43,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:43,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:43,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:43,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:43,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:43,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:43,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:43,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:43,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:43,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:43,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:43,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:43,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:43,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:43,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:43,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:43,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:43,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:43,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:43,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:33:43,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:43,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:43,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:43,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:43,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:43,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:43,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:43,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:43,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:43,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:43,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:43,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:43,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:43,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:43,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:43,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:43,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:43,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:43,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:43,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:43,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:43,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:43,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:43,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:43,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:43,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:43,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:43,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:43,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:43,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:43,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:43,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:43,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:33:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:43,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:43,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:43,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:43,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:43,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:43,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:43,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:43,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:33:43,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518692667] [2020-09-24 23:33:43,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:43,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:33:43,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799467815] [2020-09-24 23:33:43,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:33:43,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:43,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:33:43,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:33:43,841 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 5 states. [2020-09-24 23:33:44,462 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:45,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:45,534 INFO L93 Difference]: Finished difference Result 478 states and 564 transitions. [2020-09-24 23:33:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:33:45,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:33:45,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:45,555 INFO L225 Difference]: With dead ends: 478 [2020-09-24 23:33:45,555 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 23:33:45,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:33:45,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 23:33:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 257. [2020-09-24 23:33:45,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-24 23:33:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 277 transitions. [2020-09-24 23:33:45,690 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 277 transitions. Word has length 148 [2020-09-24 23:33:45,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:45,691 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 277 transitions. [2020-09-24 23:33:45,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:33:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 277 transitions. [2020-09-24 23:33:45,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:33:45,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:45,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:33:45,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:33:45,698 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:45,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:45,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1296702112, now seen corresponding path program 1 times [2020-09-24 23:33:45,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:45,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503317747] [2020-09-24 23:33:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:45,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:45,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:46,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:49,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:50,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:50,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 23:33:50,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:33:50,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-24 23:33:50,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:33:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:33:50,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:33:50,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,151 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:51,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:51,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-24 23:33:51,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:33:51,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:51,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:51,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:51,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:51,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:51,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:51,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:51,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:51,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:33:51,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:51,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:51,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:51,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:51,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:51,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:51,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:51,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:51,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 23:33:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:33:51,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:33:51,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:33:51,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:33:51,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:33:51,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:33:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:51,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:33:51,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:51,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:33:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:51,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:51,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:51,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:51,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:33:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:51,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:51,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:51,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:51,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:51,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:33:51,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:51,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:51,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:51,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:33:51,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:33:51,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503317747] [2020-09-24 23:33:51,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:51,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:33:51,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439299395] [2020-09-24 23:33:51,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:33:51,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:51,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:33:51,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:33:51,709 INFO L87 Difference]: Start difference. First operand 257 states and 277 transitions. Second operand 7 states. [2020-09-24 23:33:52,248 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:33:53,762 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:33:55,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:33:55,004 INFO L93 Difference]: Finished difference Result 606 states and 717 transitions. [2020-09-24 23:33:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:33:55,005 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-09-24 23:33:55,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:33:55,011 INFO L225 Difference]: With dead ends: 606 [2020-09-24 23:33:55,012 INFO L226 Difference]: Without dead ends: 464 [2020-09-24 23:33:55,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:33:55,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-09-24 23:33:55,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 383. [2020-09-24 23:33:55,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-09-24 23:33:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 425 transitions. [2020-09-24 23:33:55,094 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 425 transitions. Word has length 157 [2020-09-24 23:33:55,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:33:55,095 INFO L479 AbstractCegarLoop]: Abstraction has 383 states and 425 transitions. [2020-09-24 23:33:55,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:33:55,095 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 425 transitions. [2020-09-24 23:33:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 23:33:55,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:55,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:33:55,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:33:55,100 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:55,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:55,100 INFO L82 PathProgramCache]: Analyzing trace with hash -193373180, now seen corresponding path program 1 times [2020-09-24 23:33:55,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:55,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669551716] [2020-09-24 23:33:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:55,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:55,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:57,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:00,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:00,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 23:34:00,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:34:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:34:00,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:34:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 23:34:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-09-24 23:34:00,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:00,556 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:34:00,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:34:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:00,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:00,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:00,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:34:00,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-24 23:34:00,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:00,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 23:34:00,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:34:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:00,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:00,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:00,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:00,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:00,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:34:00,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:00,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:00,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:00,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:34:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:00,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:00,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:00,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:00,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:00,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:00,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:00,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:00,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:00,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:00,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:00,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:34:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:00,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:00,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:00,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:00,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:00,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:34:00,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:00,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:00,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:34:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:00,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:00,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:00,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:00,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:34:00,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:00,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:00,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:00,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:00,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:34:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:00,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:00,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:00,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:00,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:00,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:00,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:00,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:34:00,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:00,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:34:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:00,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:01,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:34:01,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:34:01,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:34:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 23:34:01,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:34:01,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-09-24 23:34:01,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:01,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 23:34:01,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:34:01,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:01,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 23:34:01,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:34:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:34:01,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:01,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:01,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:34:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:01,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:34:01,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 23:34:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:01,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:34:01,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:34:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:01,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:01,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 23:34:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:01,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:01,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:01,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:01,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:01,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:01,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:34:01,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:01,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:34:01,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669551716] [2020-09-24 23:34:01,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:34:01,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:34:01,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037463541] [2020-09-24 23:34:01,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:34:01,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:34:01,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:34:01,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:34:01,611 INFO L87 Difference]: Start difference. First operand 383 states and 425 transitions. Second operand 11 states. [2020-09-24 23:34:02,171 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:34:03,671 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:34:04,008 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:34:04,674 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:34:05,026 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:34:05,490 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:34:05,837 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:34:06,182 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:34:06,799 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:34:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:34:08,567 INFO L93 Difference]: Finished difference Result 1141 states and 1439 transitions. [2020-09-24 23:34:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 23:34:08,568 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-24 23:34:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:34:08,577 INFO L225 Difference]: With dead ends: 1141 [2020-09-24 23:34:08,577 INFO L226 Difference]: Without dead ends: 836 [2020-09-24 23:34:08,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-09-24 23:34:08,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-24 23:34:08,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 578. [2020-09-24 23:34:08,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-09-24 23:34:08,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 641 transitions. [2020-09-24 23:34:08,699 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 641 transitions. Word has length 194 [2020-09-24 23:34:08,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:34:08,700 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 641 transitions. [2020-09-24 23:34:08,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:34:08,701 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 641 transitions. [2020-09-24 23:34:08,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 23:34:08,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:34:08,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:34:08,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:34:08,705 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:34:08,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:34:08,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2047227110, now seen corresponding path program 1 times [2020-09-24 23:34:08,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:34:08,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950998751] [2020-09-24 23:34:08,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:34:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:08,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:11,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:13,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:13,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 23:34:13,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:34:13,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:34:13,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:34:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:34:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 23:34:13,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:14,184 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:34:14,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:34:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:14,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:34:14,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-24 23:34:14,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:34:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:14,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:34:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:14,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:14,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:14,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:14,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:14,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:14,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:14,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:14,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:14,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:34:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:14,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:14,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:14,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:34:14,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:14,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:34:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:14,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:14,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:14,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:34:14,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:14,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:14,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:14,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:14,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:34:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:14,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:14,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:14,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:14,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:14,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:34:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:14,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:14,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:14,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:34:14,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:14,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:34:14,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:14,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:34:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:14,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:34:14,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:14,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:34:14,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:34:14,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:14,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:34:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:14,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:14,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:34:14,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:34:14,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:14,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:34:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:14,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:15,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:15,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:15,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 23:34:15,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:34:15,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 803 [2020-09-24 23:34:15,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:15,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:34:15,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:34:15,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:34:15,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:15,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:15,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:15,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:15,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:15,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:34:15,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 23:34:15,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:34:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:15,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:34:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:15,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:15,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:15,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:34:15,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:34:15,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:15,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:15,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:34:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:15,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:15,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:15,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:15,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:15,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:15,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:15,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-24 23:34:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:15,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:15,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:15,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:15,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:15,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:15,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 23:34:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:15,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:15,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:15,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:15,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:15,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:34:15,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:15,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:34:15,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:15,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:34:15,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950998751] [2020-09-24 23:34:15,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:34:15,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:34:15,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584307860] [2020-09-24 23:34:15,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:34:15,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:34:15,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:34:15,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:34:15,769 INFO L87 Difference]: Start difference. First operand 578 states and 641 transitions. Second operand 12 states. [2020-09-24 23:34:16,440 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:34:18,330 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:18,645 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:34:19,063 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:34:20,611 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:34:20,943 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:34:21,382 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:34:21,732 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:34:22,086 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 192