/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:54:33,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:54:33,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:54:33,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:54:33,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:54:33,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:54:33,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:54:33,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:54:33,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:54:33,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:54:33,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:54:33,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:54:33,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:54:33,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:54:33,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:54:33,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:54:33,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:54:33,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:54:33,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:54:33,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:54:33,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:54:33,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:54:33,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:54:33,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:54:33,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:54:33,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:54:33,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:54:33,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:54:33,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:54:33,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:54:33,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:54:33,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:54:33,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:54:33,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:54:33,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:54:33,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:54:33,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:54:33,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:54:33,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:54:33,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:54:33,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:54:33,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 10:54:33,577 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:54:33,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:54:33,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:54:33,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:54:33,579 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:54:33,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:54:33,580 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:54:33,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:54:33,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:54:33,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:54:33,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:54:33,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:54:33,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:54:33,583 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:54:33,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:54:33,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:54:33,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:54:33,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:54:33,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:54:33,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:54:33,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:54:33,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:54:33,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:54:33,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:54:33,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:54:33,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:54:33,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:54:33,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:54:33,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:54:33,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:54:34,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:54:34,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:54:34,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:54:34,054 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:54:34,055 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:54:34,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-09-25 10:54:34,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f4eab46/c0f29470839c4a89ab230d580bcb6292/FLAGf5c016345 [2020-09-25 10:54:34,746 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:54:34,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-09-25 10:54:34,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f4eab46/c0f29470839c4a89ab230d580bcb6292/FLAGf5c016345 [2020-09-25 10:54:35,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f4eab46/c0f29470839c4a89ab230d580bcb6292 [2020-09-25 10:54:35,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:54:35,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:54:35,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:54:35,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:54:35,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:54:35,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35, skipping insertion in model container [2020-09-25 10:54:35,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:54:35,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:54:35,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:54:35,630 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:54:35,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:54:35,823 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:54:35,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35 WrapperNode [2020-09-25 10:54:35,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:54:35,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:54:35,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:54:35,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:54:35,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (1/1) ... [2020-09-25 10:54:35,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:54:35,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:54:35,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:54:35,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:54:35,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:54:36,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:54:36,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:54:36,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:54:36,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 10:54:36,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 10:54:36,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:54:36,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:54:36,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:54:36,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:54:36,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:54:36,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:54:36,054 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:54:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:54:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:54:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:54:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:54:36,055 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:54:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:54:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:54:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:54:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:54:36,056 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:54:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:54:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:54:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:54:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:54:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:54:36,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:54:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:54:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:54:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:54:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:54:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:54:36,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:54:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:54:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:54:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:54:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:54:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:54:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:54:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:54:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:54:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:54:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:54:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:54:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 10:54:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 10:54:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:54:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:54:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:54:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:54:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:54:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:54:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:54:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:54:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:54:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:54:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:54:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:54:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:54:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:54:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:54:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:54:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:54:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:54:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:54:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:54:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:54:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:54:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:54:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:54:36,064 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:54:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:54:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:54:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:54:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:54:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:54:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:54:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:54:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:54:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:54:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:54:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:54:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:54:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:54:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:54:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:54:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:54:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:54:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:54:36,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:54:36,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:54:37,420 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:54:37,420 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:54:37,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:54:37 BoogieIcfgContainer [2020-09-25 10:54:37,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:54:37,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:54:37,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:54:37,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:54:37,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:54:35" (1/3) ... [2020-09-25 10:54:37,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abce82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:54:37, skipping insertion in model container [2020-09-25 10:54:37,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:54:35" (2/3) ... [2020-09-25 10:54:37,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abce82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:54:37, skipping insertion in model container [2020-09-25 10:54:37,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:54:37" (3/3) ... [2020-09-25 10:54:37,438 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-09-25 10:54:37,450 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:54:37,462 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:54:37,483 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:54:37,516 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:54:37,516 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:54:37,516 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:54:37,516 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:54:37,517 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:54:37,517 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:54:37,517 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:54:37,517 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:54:37,546 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 10:54:37,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 10:54:37,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:54:37,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:54:37,565 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:54:37,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:54:37,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1518186743, now seen corresponding path program 1 times [2020-09-25 10:54:37,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:54:37,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483930903] [2020-09-25 10:54:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:54:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:38,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:38,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:38,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:39,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:40,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:42,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:42,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 10:54:42,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:54:42,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 10:54:42,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:42,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:42,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:54:42,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 10:54:42,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 10:54:43,573 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:54:43,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:54:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:43,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:44,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:44,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:54:44,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:44,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-25 10:54:44,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:44,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:44,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:54:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:44,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:54:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:44,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:44,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:44,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:44,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:54:44,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:44,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:44,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:44,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:54:44,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:54:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:44,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:44,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:44,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:44,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:44,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:54:44,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:44,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:44,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:44,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:44,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:54:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:54:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:44,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:44,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:44,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:44,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:44,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:54:44,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:44,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:44,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:44,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:44,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:54:44,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:44,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:54:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:44,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:44,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:44,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:44,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:44,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:54:44,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:44,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:44,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:44,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:44,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:44,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:44,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:54:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:44,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:44,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:44,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:54:44,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:44,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:54:44,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:44,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:44,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:44,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:44,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:54:44,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:54:44,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 10:54:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:44,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:44,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:44,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:44,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:44,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:54:44,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:44,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:54:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:54:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:54:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:44,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 10:54:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:44,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:44,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:44,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:44,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:54:44,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:44,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:54:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:54:44,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:54:44,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:54:44,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483930903] [2020-09-25 10:54:44,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:54:44,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:54:44,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030578375] [2020-09-25 10:54:44,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:54:44,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:54:44,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:54:44,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:54:44,381 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 5 states. [2020-09-25 10:54:45,118 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:54:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:54:46,204 INFO L93 Difference]: Finished difference Result 468 states and 552 transitions. [2020-09-25 10:54:46,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:54:46,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 10:54:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:54:46,238 INFO L225 Difference]: With dead ends: 468 [2020-09-25 10:54:46,238 INFO L226 Difference]: Without dead ends: 300 [2020-09-25 10:54:46,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:54:46,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-25 10:54:46,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 253. [2020-09-25 10:54:46,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 10:54:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-09-25 10:54:46,368 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 148 [2020-09-25 10:54:46,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:54:46,369 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-09-25 10:54:46,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:54:46,370 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-09-25 10:54:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 10:54:46,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:54:46,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:54:46,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:54:46,376 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:54:46,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:54:46,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1239391004, now seen corresponding path program 1 times [2020-09-25 10:54:46,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:54:46,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721778162] [2020-09-25 10:54:46,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:54:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:46,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:46,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:46,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:50,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:50,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:51,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:51,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:54:51,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:54:51,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 10:54:51,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:51,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:54:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 10:54:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-25 10:54:51,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:54:51,938 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:54:51,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:54:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:54:52,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 10:54:52,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 10:54:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:54:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:52,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:54:52,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:52,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:52,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:54:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:52,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:54:52,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:52,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:52,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:54:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:52,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:54:52,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:52,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:54:52,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:54:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:52,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:54:52,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:54:52,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:54:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:54:52,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:54:52,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:54:52,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 10:54:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:54:52,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:54:52,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:54:52,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:54:52,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:54:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:54:52,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:54:52,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:54:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:54:52,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 10:54:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:52,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:54:52,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:54:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:54:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:54:52,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 10:54:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:52,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:52,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:54:52,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:54:52,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:54:52,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:54:52,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:54:52,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:54:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:54:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:54:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:54:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:54:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:54:52,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721778162] [2020-09-25 10:54:52,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:54:52,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:54:52,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47025148] [2020-09-25 10:54:52,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:54:52,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:54:52,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:54:52,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:54:52,619 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 10 states. [2020-09-25 10:54:53,309 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:54:54,576 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:54:54,926 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 10:54:55,327 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:54:55,743 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 10:54:56,122 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 10:54:56,677 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:54:56,995 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:54:57,398 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:54:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:54:58,923 INFO L93 Difference]: Finished difference Result 642 states and 775 transitions. [2020-09-25 10:54:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 10:54:58,924 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-09-25 10:54:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:54:58,931 INFO L225 Difference]: With dead ends: 642 [2020-09-25 10:54:58,931 INFO L226 Difference]: Without dead ends: 486 [2020-09-25 10:54:58,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:54:58,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-25 10:54:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 363. [2020-09-25 10:54:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-25 10:54:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 398 transitions. [2020-09-25 10:54:59,043 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 398 transitions. Word has length 157 [2020-09-25 10:54:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:54:59,044 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 398 transitions. [2020-09-25 10:54:59,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:54:59,045 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 398 transitions. [2020-09-25 10:54:59,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 10:54:59,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:54:59,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:54:59,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:54:59,057 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:54:59,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:54:59,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1125000621, now seen corresponding path program 1 times [2020-09-25 10:54:59,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:54:59,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275178478] [2020-09-25 10:54:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:54:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:54:59,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:54:59,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:00,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:00,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:02,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 10:55:04,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:55:04,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:55:04,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:55:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:55:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-25 10:55:04,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,466 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:55:04,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:55:04,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 10:55:04,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:55:04,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:55:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:04,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:04,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:04,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:55:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:04,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:04,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:04,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:55:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:04,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:55:04,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:55:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:04,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:04,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:04,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:55:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:55:04,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:55:04,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:55:04,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 10:55:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:55:04,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:55:04,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:55:04,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:55:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:55:04,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:55:04,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:55:04,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:55:04,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:55:04,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:55:04,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:55:04,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:55:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:04,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:04,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:55:04,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 10:55:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:04,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:04,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:04,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:04,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 10:55:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:04,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:04,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:04,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:04,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:05,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:55:05,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:05,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:55:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:05,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:55:05,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275178478] [2020-09-25 10:55:05,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:05,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 10:55:05,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128603840] [2020-09-25 10:55:05,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:55:05,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:05,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:55:05,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:55:05,153 INFO L87 Difference]: Start difference. First operand 363 states and 398 transitions. Second operand 12 states. [2020-09-25 10:55:05,996 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:07,787 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:55:08,109 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 10:55:08,510 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:55:09,194 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 193 [2020-09-25 10:55:10,563 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 195 [2020-09-25 10:55:11,779 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-25 10:55:12,420 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-25 10:55:12,833 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:55:13,188 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 10:55:13,523 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 10:55:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:55:14,530 INFO L93 Difference]: Finished difference Result 1128 states and 1404 transitions. [2020-09-25 10:55:14,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 10:55:14,531 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 171 [2020-09-25 10:55:14,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:55:14,544 INFO L225 Difference]: With dead ends: 1128 [2020-09-25 10:55:14,545 INFO L226 Difference]: Without dead ends: 880 [2020-09-25 10:55:14,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 27 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=385, Invalid=1337, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 10:55:14,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2020-09-25 10:55:14,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 560. [2020-09-25 10:55:14,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-09-25 10:55:14,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 621 transitions. [2020-09-25 10:55:14,646 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 621 transitions. Word has length 171 [2020-09-25 10:55:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:55:14,647 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 621 transitions. [2020-09-25 10:55:14,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 10:55:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 621 transitions. [2020-09-25 10:55:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 10:55:14,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:14,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:55:14,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:55:14,653 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:14,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:14,653 INFO L82 PathProgramCache]: Analyzing trace with hash -81749345, now seen corresponding path program 1 times [2020-09-25 10:55:14,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:14,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691271514] [2020-09-25 10:55:14,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:14,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:19,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:19,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 10:55:19,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:55:19,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 10:55:19,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:19,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:55:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 10:55:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 10:55:19,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:55:19,987 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:55:19,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:55:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:55:20,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 10:55:20,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:55:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:20,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:55:20,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:55:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:20,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:55:20,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 10:55:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:20,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:20,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 10:55:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:55:20,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:20,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 10:55:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:55:20,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:20,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:20,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 10:55:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 10:55:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:55:20,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:20,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:55:20,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:55:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 10:55:20,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:55:20,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 10:55:20,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:55:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:55:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:55:20,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:55:20,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:55:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:55:20,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:55:20,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 10:55:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 10:55:20,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:55:20,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:55:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:55:20,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:20,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:55:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:20,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:20,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 10:55:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:55:20,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:20,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:55:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:55:20,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 10:55:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:20,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:55:20,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:20,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:55:20,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 10:55:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:20,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:20,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:55:20,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:55:20,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:55:20,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:55:20,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:55:20,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:55:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:55:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:55:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:55:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:55:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 10:55:20,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691271514] [2020-09-25 10:55:20,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:55:20,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:55:20,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172941802] [2020-09-25 10:55:20,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:55:20,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:55:20,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:55:20,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:55:20,516 INFO L87 Difference]: Start difference. First operand 560 states and 621 transitions. Second operand 7 states. [2020-09-25 10:55:21,004 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189