/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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:53:30,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:53:30,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:53:30,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:53:30,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:53:30,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:53:30,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:53:30,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:53:30,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:53:30,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:53:30,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:53:30,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:53:30,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:53:30,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:53:30,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:53:30,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:53:30,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:53:30,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:53:30,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:53:30,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:53:30,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:53:30,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:53:30,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:53:30,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:53:30,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:53:30,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:53:30,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:53:30,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:53:30,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:53:30,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:53:30,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:53:30,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:53:30,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:53:30,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:53:30,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:53:30,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:53:30,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:53:30,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:53:30,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:53:30,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:53:30,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:53:30,545 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 09:53:30,571 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:53:30,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:53:30,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:53:30,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:53:30,573 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:53:30,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:53:30,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:53:30,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:53:30,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:53:30,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:53:30,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:53:30,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:53:30,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:53:30,575 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:53:30,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:53:30,575 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:53:30,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:53:30,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:53:30,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:53:30,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:53:30,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:53:30,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:53:30,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:53:30,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:53:30,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:53:30,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:53:30,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:53:30,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:53:30,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:53:30,578 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 09:53:31,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:53:31,066 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:53:31,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:53:31,072 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:53:31,073 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:53:31,074 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-25 09:53:31,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1d2af35d/7171805a294b4e95a150ca18b1eeaf77/FLAG9fb27181f [2020-09-25 09:53:31,836 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:53:31,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-25 09:53:31,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1d2af35d/7171805a294b4e95a150ca18b1eeaf77/FLAG9fb27181f [2020-09-25 09:53:32,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1d2af35d/7171805a294b4e95a150ca18b1eeaf77 [2020-09-25 09:53:32,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:53:32,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:53:32,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:53:32,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:53:32,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:53:32,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbc2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32, skipping insertion in model container [2020-09-25 09:53:32,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:53:32,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:53:32,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:53:32,633 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:53:32,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:53:32,793 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:53:32,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32 WrapperNode [2020-09-25 09:53:32,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:53:32,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:53:32,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:53:32,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:53:32,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (1/1) ... [2020-09-25 09:53:32,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:53:32,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:53:32,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:53:32,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:53:32,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (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 09:53:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:53:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:53:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:53:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:53:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:53:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:53:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:53:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:53:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:53:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:53:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:53:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:53:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:53:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:53:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:53:33,022 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:53:33,022 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:53:33,022 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:53:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:53:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:53:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:53:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:53:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:53:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:53:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:53:33,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:53:33,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:53:33,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:53:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:53:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:53:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:53:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:53:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:53:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:53:33,027 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:53:33,027 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:53:33,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:53:33,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:53:33,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:53:33,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:53:33,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:53:33,028 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:53:33,028 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:53:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:53:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:53:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:53:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:53:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:53:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:53:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:53:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:53:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:53:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:53:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:53:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:53:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:53:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:53:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:53:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:53:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:53:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:53:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:53:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:53:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:53:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:53:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:53:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:53:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:53:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:53:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:53:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:53:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:53:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:53:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:53:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:53:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:53:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:53:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:53:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:53:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:53:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:53:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:53:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:53:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:53:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:53:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:53:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:53:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:53:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:53:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:53:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:53:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:53:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:53:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:53:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:53:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:53:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:53:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:53:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:53:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:53:34,443 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:53:34,444 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:53:34,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:53:34 BoogieIcfgContainer [2020-09-25 09:53:34,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:53:34,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:53:34,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:53:34,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:53:34,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:53:32" (1/3) ... [2020-09-25 09:53:34,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc8df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:53:34, skipping insertion in model container [2020-09-25 09:53:34,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:53:32" (2/3) ... [2020-09-25 09:53:34,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcc8df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:53:34, skipping insertion in model container [2020-09-25 09:53:34,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:53:34" (3/3) ... [2020-09-25 09:53:34,461 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-09-25 09:53:34,472 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:53:34,483 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:53:34,503 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:53:34,536 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:53:34,536 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:53:34,536 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:53:34,536 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:53:34,536 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:53:34,537 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:53:34,537 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:53:34,537 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:53:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2020-09-25 09:53:34,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:53:34,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:34,588 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 09:53:34,588 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:34,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:34,596 INFO L82 PathProgramCache]: Analyzing trace with hash 678471582, now seen corresponding path program 1 times [2020-09-25 09:53:34,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:34,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869149819] [2020-09-25 09:53:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:35,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:35,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:36,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:37,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:40,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:40,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:53:40,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:53:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-09-25 09:53:40,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:40,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:53:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:53:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 09:53:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:53:40,664 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:40,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:40,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:41,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:41,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:41,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-25 09:53:41,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:41,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:53:41,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:41,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:41,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:41,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:41,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:41,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:53:41,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:41,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:41,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:41,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:41,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:41,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:41,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:41,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:41,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:41,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:41,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:41,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:41,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:41,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:41,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:41,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:41,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:53:41,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:41,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:41,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:41,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:41,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:41,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:41,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:41,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:41,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:41,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:53:41,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:41,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:41,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:41,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:41,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:53:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:41,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:41,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:41,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:41,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:53:41,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:41,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:53:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:53:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:41,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:41,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:41,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:41,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:41,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:41,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:41,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:41,345 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 09:53:41,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869149819] [2020-09-25 09:53:41,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:41,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:53:41,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471250570] [2020-09-25 09:53:41,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:53:41,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:41,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:53:41,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:53:41,383 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 8 states. [2020-09-25 09:53:41,987 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:42,989 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:43,312 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:43,659 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:44,068 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:44,402 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:53:44,754 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:45,093 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:53:48,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:48,113 INFO L93 Difference]: Finished difference Result 779 states and 957 transitions. [2020-09-25 09:53:48,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:53:48,116 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:53:48,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:48,139 INFO L225 Difference]: With dead ends: 779 [2020-09-25 09:53:48,139 INFO L226 Difference]: Without dead ends: 538 [2020-09-25 09:53:48,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:53:48,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-09-25 09:53:48,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 488. [2020-09-25 09:53:48,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-09-25 09:53:48,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 557 transitions. [2020-09-25 09:53:48,307 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 557 transitions. Word has length 142 [2020-09-25 09:53:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:48,309 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 557 transitions. [2020-09-25 09:53:48,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:53:48,309 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 557 transitions. [2020-09-25 09:53:48,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:53:48,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:48,319 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 09:53:48,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:53:48,320 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:48,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:48,320 INFO L82 PathProgramCache]: Analyzing trace with hash 188320700, now seen corresponding path program 1 times [2020-09-25 09:53:48,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:48,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492807117] [2020-09-25 09:53:48,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:48,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:48,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:49,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:53,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:53,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:53:53,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:53:53,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 09:53:53,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:53,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:53:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 09:53:53,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 09:53:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:53,663 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:53:53,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:53:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:53,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:53,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:53,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:53:53,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:53,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 09:53:53,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:53,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:53,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 09:53:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:53:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:53,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:53,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:53,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:53,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:53,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:53,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:53,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:53,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:53:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:53,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:53,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:53,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:53,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:53,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:53,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:53,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:53,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:53,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:53,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:53,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:53,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:53:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:53,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:53,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:53,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:53,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:53,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:53:53,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:53,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:53:53,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:54,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:53:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:54,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:54,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:53:54,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:53:54,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:54,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:53:54,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:54,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:53:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:54,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:54,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:54,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:53:54,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:54,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:53:54,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:54,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:53:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:53:54,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:53:54,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:53:54,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:53:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:54,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:54,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:54,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:54,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:54,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:54,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:54,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:54,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:53:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:54,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:54,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:53:54,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:53:54,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:53:54,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:53:54,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:53:54,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:53:54,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:53:54,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:53:54,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:53:54,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:53:54,077 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 09:53:54,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492807117] [2020-09-25 09:53:54,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:53:54,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:53:54,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253463501] [2020-09-25 09:53:54,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:53:54,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:53:54,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:53:54,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:53:54,082 INFO L87 Difference]: Start difference. First operand 488 states and 557 transitions. Second operand 5 states. [2020-09-25 09:53:54,663 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:53:57,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:53:57,560 INFO L93 Difference]: Finished difference Result 1331 states and 1605 transitions. [2020-09-25 09:53:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:53:57,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 09:53:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:53:57,572 INFO L225 Difference]: With dead ends: 1331 [2020-09-25 09:53:57,573 INFO L226 Difference]: Without dead ends: 953 [2020-09-25 09:53:57,576 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 09:53:57,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2020-09-25 09:53:57,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 841. [2020-09-25 09:53:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2020-09-25 09:53:57,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 973 transitions. [2020-09-25 09:53:57,726 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 973 transitions. Word has length 148 [2020-09-25 09:53:57,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:53:57,727 INFO L479 AbstractCegarLoop]: Abstraction has 841 states and 973 transitions. [2020-09-25 09:53:57,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:53:57,728 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 973 transitions. [2020-09-25 09:53:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 09:53:57,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:53:57,736 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] [2020-09-25 09:53:57,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:53:57,737 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:53:57,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:53:57,737 INFO L82 PathProgramCache]: Analyzing trace with hash 260926908, now seen corresponding path program 1 times [2020-09-25 09:53:57,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:53:57,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257260862] [2020-09-25 09:53:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:53:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:53:57,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:57,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:53:58,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:01,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:02,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:02,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 09:54:02,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:54:02,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 09:54:02,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:02,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 09:54:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:54:02,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 09:54:02,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,173 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:54:03,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:54:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:54:03,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 09:54:03,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:54:03,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:54:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:03,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:03,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:03,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:54:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:54:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:03,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:54:03,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:03,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:03,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:54:03,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:54:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:03,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:54:03,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:03,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:54:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:54:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:03,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:03,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:03,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:03,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:54:03,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:54:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:54:03,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:54:03,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:54:03,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:54:03,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:54:03,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 09:54:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 09:54:03,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:54:03,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 09:54:03,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:03,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:03,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 09:54:03,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:54:03,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:54:03,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:54:03,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:54:03,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 09:54:03,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:54:03,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:54:03,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:54:03,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:54:03,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:54:03,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:54:03,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:54:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:54:03,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:54:03,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:54:03,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:03,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:54:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 09:54:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:03,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:54:03,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:54:03,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:54:03,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:54:03,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 09:54:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:54:03,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:54:03,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:54:03,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:54:03,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:54:03,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:54:03,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:54:03,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:54:03,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:54:03,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:54:03,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:54:03,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:54:03,857 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 09:54:03,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257260862] [2020-09-25 09:54:03,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:54:03,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 09:54:03,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873110078] [2020-09-25 09:54:03,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 09:54:03,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:54:03,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 09:54:03,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:54:03,860 INFO L87 Difference]: Start difference. First operand 841 states and 973 transitions. Second operand 14 states. [2020-09-25 09:54:04,411 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:54:05,428 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:54:06,269 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:54:06,621 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:54:07,066 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:54:07,439 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:54:07,840 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:54:08,269 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:54:08,634 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:54:10,125 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:54:10,558 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:54:10,913 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:54:11,338 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:54:11,720 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:54:12,060 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:54:12,412 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:54:12,729 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:54:13,068 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:54:13,393 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:54:13,814 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:54:14,233 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:54:15,264 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:54:15,673 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:54:16,170 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:54:16,601 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:54:17,047 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 09:54:17,567 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:54:17,955 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:54:20,729 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:54:20,998 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188