/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_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:52:27,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:52:27,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:52:28,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:52:28,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:52:28,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:52:28,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:52:28,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:52:28,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:52:28,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:52:28,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:52:28,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:52:28,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:52:28,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:52:28,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:52:28,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:52:28,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:52:28,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:52:28,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:52:28,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:52:28,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:52:28,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:52:28,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:52:28,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:52:28,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:52:28,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:52:28,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:52:28,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:52:28,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:52:28,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:52:28,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:52:28,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:52:28,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:52:28,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:52:28,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:52:28,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:52:28,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:52:28,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:52:28,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:52:28,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:52:28,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:52:28,065 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 09:52:28,090 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:52:28,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:52:28,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:52:28,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:52:28,092 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:52:28,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:52:28,093 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:52:28,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:52:28,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:52:28,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:52:28,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:52:28,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:52:28,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:52:28,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:52:28,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:52:28,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:52:28,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:52:28,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:52:28,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:52:28,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:52:28,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:52:28,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:52:28,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:52:28,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:52:28,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:52:28,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:52:28,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:52:28,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:52:28,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:52:28,100 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 09:52:28,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:52:28,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:52:28,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:52:28,586 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:52:28,587 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:52:28,588 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 09:52:28,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35b3351e4/d02b17a55c8b439e9b474e94fa26dad3/FLAGabd7fbe6c [2020-09-25 09:52:29,303 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:52:29,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 09:52:29,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35b3351e4/d02b17a55c8b439e9b474e94fa26dad3/FLAGabd7fbe6c [2020-09-25 09:52:29,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35b3351e4/d02b17a55c8b439e9b474e94fa26dad3 [2020-09-25 09:52:29,605 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:52:29,611 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:52:29,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:29,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:52:29,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:52:29,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:29" (1/1) ... [2020-09-25 09:52:29,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:29, skipping insertion in model container [2020-09-25 09:52:29,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:29" (1/1) ... [2020-09-25 09:52:29,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:52:29,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:52:30,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:30,212 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:52:30,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:30,347 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:52:30,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30 WrapperNode [2020-09-25 09:52:30,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:30,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:52:30,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:52:30,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:52:30,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (1/1) ... [2020-09-25 09:52:30,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (1/1) ... [2020-09-25 09:52:30,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (1/1) ... [2020-09-25 09:52:30,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (1/1) ... [2020-09-25 09:52:30,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (1/1) ... [2020-09-25 09:52:30,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (1/1) ... [2020-09-25 09:52:30,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (1/1) ... [2020-09-25 09:52:30,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:52:30,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:52:30,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:52:30,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:52:30,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (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 09:52:30,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:52:30,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:52:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:52:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:52:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:52:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:52:30,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:52:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:52:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:52:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:52:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:52:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:52:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:52:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:52:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:52:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:52:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:52:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:52:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:52:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:52:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:52:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:52:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:52:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:52:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:52:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 09:52:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:52:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:52:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:52:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:52:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:52:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:52:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:52:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:52:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:52:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:52:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:52:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:52:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:52:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:52:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:52:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:52:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:52:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:52:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:52:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:52:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:52:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:52:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:52:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:52:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:52:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:52:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:52:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:52:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:52:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:52:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:52:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:52:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:52:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:52:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:52:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:52:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:52:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:52:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:52:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:52:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:52:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:52:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:52:30,551 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:52:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:52:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:52:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:52:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:52:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:52:30,552 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:52:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:52:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 09:52:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:52:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:52:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:52:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:52:31,719 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:52:31,719 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:52:31,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:31 BoogieIcfgContainer [2020-09-25 09:52:31,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:52:31,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:52:31,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:52:31,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:52:31,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:52:29" (1/3) ... [2020-09-25 09:52:31,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638fa864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:31, skipping insertion in model container [2020-09-25 09:52:31,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:30" (2/3) ... [2020-09-25 09:52:31,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638fa864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:31, skipping insertion in model container [2020-09-25 09:52:31,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:31" (3/3) ... [2020-09-25 09:52:31,739 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2020-09-25 09:52:31,751 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:52:31,765 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:52:31,788 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:52:31,837 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:52:31,837 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:52:31,837 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:52:31,838 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:52:31,838 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:52:31,838 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:52:31,838 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:52:31,838 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:52:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 09:52:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:52:31,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:31,918 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 09:52:31,919 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:31,929 INFO L82 PathProgramCache]: Analyzing trace with hash -66701350, now seen corresponding path program 1 times [2020-09-25 09:52:31,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:31,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792282218] [2020-09-25 09:52:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:32,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:32,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:34,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:37,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:37,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:52:37,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 09:52:37,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:37,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:52:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:52:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 09:52:37,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:52:38,003 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:38,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:38,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:38,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:38,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-25 09:52:38,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:38,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:52:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:38,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:38,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:38,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:38,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:38,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:52:38,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:38,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:38,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:38,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:38,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:38,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:38,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:38,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:38,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:38,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:38,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:38,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:38,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:38,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:38,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:38,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:38,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:38,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:38,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:38,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:38,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:38,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:38,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:52:38,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:38,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:38,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:38,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:38,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:38,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:38,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:38,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:38,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:38,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:38,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:38,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:38,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:38,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:38,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:38,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:38,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:38,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:52:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:38,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:38,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:38,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:38,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:38,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:52:38,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:38,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:38,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:38,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:38,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:52:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:38,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:38,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:38,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:38,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:52:38,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:38,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:38,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:38,679 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 09:52:38,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792282218] [2020-09-25 09:52:38,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:38,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:52:38,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248605417] [2020-09-25 09:52:38,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:52:38,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:38,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:52:38,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:52:38,715 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 8 states. [2020-09-25 09:52:39,433 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:40,371 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:40,728 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:41,184 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:41,591 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:41,932 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:42,237 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:42,545 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:44,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:44,546 INFO L93 Difference]: Finished difference Result 625 states and 762 transitions. [2020-09-25 09:52:44,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:52:44,548 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:52:44,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:44,576 INFO L225 Difference]: With dead ends: 625 [2020-09-25 09:52:44,577 INFO L226 Difference]: Without dead ends: 432 [2020-09-25 09:52:44,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:52:44,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-25 09:52:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 388. [2020-09-25 09:52:44,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-09-25 09:52:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 433 transitions. [2020-09-25 09:52:44,723 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 433 transitions. Word has length 142 [2020-09-25 09:52:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:44,724 INFO L479 AbstractCegarLoop]: Abstraction has 388 states and 433 transitions. [2020-09-25 09:52:44,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:52:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 433 transitions. [2020-09-25 09:52:44,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:52:44,731 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:44,731 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 09:52:44,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:52:44,732 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:44,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:44,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1078875138, now seen corresponding path program 1 times [2020-09-25 09:52:44,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:44,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180508385] [2020-09-25 09:52:44,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:44,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:44,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:45,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:49,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:49,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:52:49,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:52:49,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 09:52:49,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:49,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:49,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:52:49,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 09:52:49,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 09:52:49,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:50,120 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:50,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:50,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:50,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:50,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:50,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 09:52:50,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:50,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:50,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 09:52:50,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:50,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:50,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:50,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:50,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:50,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:50,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:50,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:50,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:50,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:50,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:50,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:50,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:50,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:50,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:50,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:50,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:50,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:50,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:50,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:50,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:50,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:50,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:50,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:50,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:50,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:50,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:50,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:50,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:50,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:50,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:50,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:50,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:50,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:50,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:50,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:50,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:52:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:50,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:50,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:50,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:50,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:52:50,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:50,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:50,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:50,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:52:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:50,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:50,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:50,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:50,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:50,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:50,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:50,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:50,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:52:50,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:52:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:50,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:50,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:50,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:50,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:50,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:50,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:50,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:50,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:50,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:50,527 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 09:52:50,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180508385] [2020-09-25 09:52:50,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:50,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:52:50,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316890923] [2020-09-25 09:52:50,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:52:50,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:50,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:52:50,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:52:50,540 INFO L87 Difference]: Start difference. First operand 388 states and 433 transitions. Second operand 5 states. [2020-09-25 09:52:51,113 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:52,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:52,311 INFO L93 Difference]: Finished difference Result 717 states and 853 transitions. [2020-09-25 09:52:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:52:52,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 09:52:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:52,324 INFO L225 Difference]: With dead ends: 717 [2020-09-25 09:52:52,325 INFO L226 Difference]: Without dead ends: 439 [2020-09-25 09:52:52,333 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 09:52:52,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-09-25 09:52:52,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 384. [2020-09-25 09:52:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-09-25 09:52:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 425 transitions. [2020-09-25 09:52:52,408 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 425 transitions. Word has length 148 [2020-09-25 09:52:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:52,409 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 425 transitions. [2020-09-25 09:52:52,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:52:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 425 transitions. [2020-09-25 09:52:52,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 09:52:52,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:52,414 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] [2020-09-25 09:52:52,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:52:52,414 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:52,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1454541443, now seen corresponding path program 1 times [2020-09-25 09:52:52,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:52,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600898375] [2020-09-25 09:52:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:52,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:52,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:53,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:56,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:57,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:57,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 09:52:57,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:57,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 09:52:57,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:57,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 09:52:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:52:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 09:52:57,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:57,912 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:57,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:57,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:58,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 09:52:58,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:58,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:52:58,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:58,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:58,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:58,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:58,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:58,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:58,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:58,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:58,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:58,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:58,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:52:58,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:58,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:58,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:58,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:58,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:58,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:58,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:52:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:58,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:52:58,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:58,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 09:52:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:52:58,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:52:58,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:52:58,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:52:58,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:52:58,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:52:58,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:58,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:58,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:58,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:58,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:58,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 09:52:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:58,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:58,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:58,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:58,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 09:52:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:58,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:58,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:58,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:58,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:52:58,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:58,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:58,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:58,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:58,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:58,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:58,471 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 09:52:58,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600898375] [2020-09-25 09:52:58,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:58,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 09:52:58,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641537372] [2020-09-25 09:52:58,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 09:52:58,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:58,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 09:52:58,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:52:58,474 INFO L87 Difference]: Start difference. First operand 384 states and 425 transitions. Second operand 11 states. [2020-09-25 09:52:59,044 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:53:01,013 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:53:01,353 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:53:01,697 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:02,079 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 09:53:02,402 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:53:02,846 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:53:03,246 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:03,555 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:03,973 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:04,573 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:53:04,873 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:53:05,212 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:53:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:06,310 INFO L93 Difference]: Finished difference Result 944 states and 1155 transitions. [2020-09-25 09:53:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 09:53:06,314 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2020-09-25 09:53:06,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:06,321 INFO L225 Difference]: With dead ends: 944 [2020-09-25 09:53:06,321 INFO L226 Difference]: Without dead ends: 670 [2020-09-25 09:53:06,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2020-09-25 09:53:06,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-09-25 09:53:06,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 566. [2020-09-25 09:53:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-09-25 09:53:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 640 transitions. [2020-09-25 09:53:06,403 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 640 transitions. Word has length 156 [2020-09-25 09:53:06,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:06,404 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 640 transitions. [2020-09-25 09:53:06,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 09:53:06,404 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 640 transitions. [2020-09-25 09:53:06,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 09:53:06,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:06,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:53:06,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:53:06,410 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:06,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:06,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1270379869, now seen corresponding path program 1 times [2020-09-25 09:53:06,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:06,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584995430] [2020-09-25 09:53:06,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:06,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:06,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:11,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:11,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-25 09:53:11,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:53:11,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 09:53:11,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:11,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:11,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 09:53:11,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:53:11,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 09:53:11,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:11,818 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:11,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:11,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:12,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 09:53:12,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:53:12,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:53:12,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:12,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:12,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:12,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:12,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:12,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:12,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:12,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:12,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:12,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:53:12,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:53:12,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:53:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:12,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:53:12,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:53:12,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:53:12,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:53:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:53:12,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:53:12,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:53:12,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:53:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 09:53:12,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:53:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 09:53:12,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:53:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 09:53:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:53:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:53:12,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:53:12,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:53:12,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:53:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:53:12,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:53:12,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 09:53:12,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:53:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 09:53:12,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 09:53:12,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:53:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:53:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 09:53:12,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:12,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:12,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:12,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 09:53:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:12,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:12,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:12,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 09:53:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:53:12,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:12,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:12,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:12,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:12,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 09:53:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:12,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:12,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:12,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:12,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:12,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 09:53:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:12,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:12,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:12,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:12,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:12,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:12,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:12,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:53:12,740 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 09:53:12,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584995430] [2020-09-25 09:53:12,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:12,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 09:53:12,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212677640] [2020-09-25 09:53:12,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 09:53:12,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:12,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 09:53:12,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:53:12,743 INFO L87 Difference]: Start difference. First operand 566 states and 640 transitions. Second operand 11 states. [2020-09-25 09:53:13,322 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:14,081 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:16,214 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:17,400 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188