/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:52:17,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:52:17,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:52:17,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:52:17,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:52:17,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:52:17,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:52:17,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:52:17,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:52:17,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:52:17,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:52:17,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:52:17,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:52:17,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:52:17,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:52:17,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:52:18,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:52:18,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:52:18,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:52:18,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:52:18,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:52:18,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:52:18,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:52:18,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:52:18,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:52:18,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:52:18,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:52:18,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:52:18,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:52:18,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:52:18,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:52:18,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:52:18,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:52:18,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:52:18,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:52:18,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:52:18,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:52:18,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:52:18,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:52:18,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:52:18,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:52:18,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:52:18,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:52:18,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:52:18,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:52:18,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:52:18,086 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:52:18,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:52:18,091 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:52:18,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:52:18,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:52:18,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:52:18,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:52:18,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:52:18,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:52:18,092 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:52:18,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:52:18,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:52:18,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:52:18,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:52:18,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:52:18,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:52:18,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:52:18,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:52:18,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:52:18,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:52:18,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:52:18,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:52:18,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:52:18,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:52:18,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:52:18,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:52:18,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:52:18,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:52:18,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:52:18,617 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:52:18,618 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:52:18,619 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-09-25 09:52:18,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fbe69ab5/4f22838c2fb14eeaa685caa32d001019/FLAGa5d43cf8d [2020-09-25 09:52:19,347 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:52:19,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2020-09-25 09:52:19,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fbe69ab5/4f22838c2fb14eeaa685caa32d001019/FLAGa5d43cf8d [2020-09-25 09:52:19,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fbe69ab5/4f22838c2fb14eeaa685caa32d001019 [2020-09-25 09:52:19,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:52:19,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:52:19,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:19,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:52:19,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:52:19,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:19" (1/1) ... [2020-09-25 09:52:19,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d085505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:19, skipping insertion in model container [2020-09-25 09:52:19,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:19" (1/1) ... [2020-09-25 09:52:19,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:52:19,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:52:20,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:20,167 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:52:20,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:20,437 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:52:20,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20 WrapperNode [2020-09-25 09:52:20,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:20,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:52:20,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:52:20,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:52:20,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (1/1) ... [2020-09-25 09:52:20,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (1/1) ... [2020-09-25 09:52:20,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (1/1) ... [2020-09-25 09:52:20,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (1/1) ... [2020-09-25 09:52:20,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (1/1) ... [2020-09-25 09:52:20,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (1/1) ... [2020-09-25 09:52:20,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (1/1) ... [2020-09-25 09:52:20,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:52:20,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:52:20,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:52:20,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:52:20,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:52:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:52:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:52:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:52:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:52:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:52:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:52:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:52:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:52:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:52:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:52:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:52:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:52:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:52:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:52:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:52:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:52:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:52:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:52:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:52:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:52:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:52:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:52:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:52:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:52:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:52:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:52:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:52:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:52:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:52:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:52:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:52:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:52:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:52:20,631 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:52:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:52:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:52:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:52:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:52:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:52:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:52:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:52:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:52:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:52:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:52:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:52:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:52:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:52:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:52:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:52:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:52:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:52:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:52:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:52:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:52:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:52:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:52:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:52:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:52:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:52:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:52:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:52:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:52:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:52:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:52:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:52:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:52:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:52:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:52:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:52:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:52:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:52:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:52:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:52:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:52:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:52:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:52:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:52:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:52:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:52:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:52:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:52:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:52:21,832 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:52:21,833 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:52:21,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:21 BoogieIcfgContainer [2020-09-25 09:52:21,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:52:21,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:52:21,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:52:21,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:52:21,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:52:19" (1/3) ... [2020-09-25 09:52:21,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a842741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:21, skipping insertion in model container [2020-09-25 09:52:21,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:20" (2/3) ... [2020-09-25 09:52:21,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a842741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:21, skipping insertion in model container [2020-09-25 09:52:21,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:21" (3/3) ... [2020-09-25 09:52:21,851 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2020-09-25 09:52:21,863 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:52:21,876 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:52:21,900 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:52:21,935 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:52:21,935 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:52:21,935 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:52:21,935 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:52:21,936 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:52:21,936 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:52:21,936 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:52:21,936 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:52:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 09:52:21,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:52:21,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:21,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:52:21,988 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:21,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1971275482, now seen corresponding path program 1 times [2020-09-25 09:52:22,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:22,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532036840] [2020-09-25 09:52:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:24,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:25,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:27,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:27,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:52:27,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 09:52:27,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:27,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:52:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:52:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 09:52:27,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:52:27,963 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:27,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:28,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:28,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:28,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:28,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 09:52:28,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:28,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:52:28,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:28,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:28,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:28,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:28,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:28,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:28,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:28,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:28,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:28,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:28,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:28,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:28,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:28,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:28,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:28,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:28,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:28,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:28,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:28,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:28,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:28,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:28,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:28,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:52:28,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:28,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:28,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:28,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:28,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:28,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:28,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:28,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:28,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:28,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:28,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:28,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:28,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:28,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:28,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:52:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:28,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:28,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:28,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:28,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:28,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:52:28,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:28,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:28,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:28,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:28,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:52:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:28,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:28,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:28,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:52:28,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532036840] [2020-09-25 09:52:28,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:28,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:52:28,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632784328] [2020-09-25 09:52:28,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:52:28,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:28,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:52:28,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:52:28,575 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 8 states. [2020-09-25 09:52:29,142 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:30,163 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:30,471 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:30,860 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:31,203 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:31,512 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:31,919 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:32,240 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:34,182 INFO L93 Difference]: Finished difference Result 643 states and 790 transitions. [2020-09-25 09:52:34,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:52:34,186 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:52:34,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:34,208 INFO L225 Difference]: With dead ends: 643 [2020-09-25 09:52:34,208 INFO L226 Difference]: Without dead ends: 444 [2020-09-25 09:52:34,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:52:34,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-09-25 09:52:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 400. [2020-09-25 09:52:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-09-25 09:52:34,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 450 transitions. [2020-09-25 09:52:34,363 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 450 transitions. Word has length 142 [2020-09-25 09:52:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:34,364 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 450 transitions. [2020-09-25 09:52:34,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:52:34,364 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 450 transitions. [2020-09-25 09:52:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:52:34,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:34,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:52:34,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:52:34,372 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:34,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:34,372 INFO L82 PathProgramCache]: Analyzing trace with hash -619705205, now seen corresponding path program 1 times [2020-09-25 09:52:34,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:34,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775805299] [2020-09-25 09:52:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:34,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:35,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:39,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:39,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:52:39,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:52:39,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 09:52:39,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:39,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:39,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:52:39,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:52:39,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 09:52:39,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:39,766 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:39,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:40,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:40,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:40,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 09:52:40,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:40,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:40,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:52:40,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:40,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:40,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:40,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:40,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:40,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:40,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:40,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:40,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:40,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:40,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:40,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:40,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:40,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:40,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:40,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:40,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:40,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:40,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:40,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:40,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:40,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:40,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:40,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:40,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:40,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:40,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:40,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:40,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:40,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:40,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:40,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:52:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:40,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:40,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:40,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:40,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:40,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:40,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:40,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:40,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:52:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:40,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:40,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:40,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:40,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:40,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:40,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:40,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:40,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:40,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:40,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:52:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:40,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:40,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:40,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:40,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:40,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:40,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:40,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:52:40,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775805299] [2020-09-25 09:52:40,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:40,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:52:40,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785566075] [2020-09-25 09:52:40,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:52:40,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:40,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:52:40,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:52:40,173 INFO L87 Difference]: Start difference. First operand 400 states and 450 transitions. Second operand 5 states. [2020-09-25 09:52:40,763 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:41,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:41,936 INFO L93 Difference]: Finished difference Result 741 states and 888 transitions. [2020-09-25 09:52:41,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:52:41,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 09:52:41,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:41,943 INFO L225 Difference]: With dead ends: 741 [2020-09-25 09:52:41,943 INFO L226 Difference]: Without dead ends: 451 [2020-09-25 09:52:41,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:52:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-25 09:52:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 396. [2020-09-25 09:52:42,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2020-09-25 09:52:42,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 441 transitions. [2020-09-25 09:52:42,021 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 441 transitions. Word has length 148 [2020-09-25 09:52:42,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:42,022 INFO L479 AbstractCegarLoop]: Abstraction has 396 states and 441 transitions. [2020-09-25 09:52:42,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:52:42,022 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 441 transitions. [2020-09-25 09:52:42,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 09:52:42,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:42,027 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] [2020-09-25 09:52:42,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:52:42,027 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:42,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:42,028 INFO L82 PathProgramCache]: Analyzing trace with hash 799967418, now seen corresponding path program 1 times [2020-09-25 09:52:42,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:42,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512697027] [2020-09-25 09:52:42,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:42,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:42,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:42,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:44,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:46,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 09:52:47,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:52:47,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 09:52:47,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 09:52:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:52:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 09:52:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,421 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:47,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:47,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 09:52:47,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:52:47,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:47,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:47,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:47,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:47,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:47,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:47,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:47,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:47,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:47,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:47,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:47,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:47,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:47,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:52:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:47,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:47,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:47,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:52:47,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:52:47,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:52:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:52:47,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:52:47,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:52:47,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:52:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:52:47,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:52:47,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 09:52:47,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:47,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 09:52:47,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:52:47,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:47,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:47,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:47,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:47,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 09:52:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:47,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:52:47,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:47,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:47,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 09:52:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:47,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:47,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:47,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:47,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:47,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:47,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:47,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:47,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:52:48,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512697027] [2020-09-25 09:52:48,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:48,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 09:52:48,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098312235] [2020-09-25 09:52:48,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 09:52:48,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:48,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 09:52:48,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:52:48,080 INFO L87 Difference]: Start difference. First operand 396 states and 441 transitions. Second operand 14 states. [2020-09-25 09:52:48,850 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:49,863 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:51,020 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:51,399 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:51,861 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:52,270 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:52,590 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:52:52,917 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:53,234 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:54,105 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:54,719 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:55,087 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:52:55,490 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:55,883 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:52:56,222 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:00,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:00,109 INFO L93 Difference]: Finished difference Result 1177 states and 1722 transitions. [2020-09-25 09:53:00,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-25 09:53:00,110 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 174 [2020-09-25 09:53:00,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:00,137 INFO L225 Difference]: With dead ends: 1177 [2020-09-25 09:53:00,139 INFO L226 Difference]: Without dead ends: 1019 [2020-09-25 09:53:00,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=585, Invalid=2067, Unknown=0, NotChecked=0, Total=2652 [2020-09-25 09:53:00,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2020-09-25 09:53:00,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 530. [2020-09-25 09:53:00,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-09-25 09:53:00,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 614 transitions. [2020-09-25 09:53:00,273 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 614 transitions. Word has length 174 [2020-09-25 09:53:00,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:00,274 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 614 transitions. [2020-09-25 09:53:00,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 09:53:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 614 transitions. [2020-09-25 09:53:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 09:53:00,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:00,278 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] [2020-09-25 09:53:00,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:53:00,279 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:00,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:00,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1088066399, now seen corresponding path program 1 times [2020-09-25 09:53:00,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:00,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773430263] [2020-09-25 09:53:00,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:00,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:00,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:00,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:01,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:05,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:05,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 09:53:05,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:53:05,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 09:53:05,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:05,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:05,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:53:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:53:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 09:53:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:53:05,660 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:05,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:05,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:05,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:05,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:05,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:05,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 09:53:05,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:05,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:53:05,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:06,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:06,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:06,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:06,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:06,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:06,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:06,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:06,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:06,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:53:06,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:06,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:06,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:06,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:06,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:06,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:06,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:06,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:06,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:53:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:06,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:53:06,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:53:06,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 09:53:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:53:06,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:53:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:53:06,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:53:06,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:53:06,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:53:06,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:53:06,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:53:06,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:53:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:53:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:06,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:06,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:06,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 09:53:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:06,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:06,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 09:53:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:06,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:06,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:06,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:06,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:06,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:53:06,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773430263] [2020-09-25 09:53:06,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:06,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:53:06,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240857218] [2020-09-25 09:53:06,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:53:06,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:06,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:53:06,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:53:06,209 INFO L87 Difference]: Start difference. First operand 530 states and 614 transitions. Second operand 7 states. [2020-09-25 09:53:06,691 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:08,012 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187