/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:01:44,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:01:44,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:01:44,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:01:44,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:01:44,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:01:44,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:01:44,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:01:44,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:01:44,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:01:44,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:01:44,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:01:44,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:01:44,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:01:44,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:01:44,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:01:44,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:01:44,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:01:44,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:01:44,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:01:44,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:01:44,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:01:44,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:01:44,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:01:44,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:01:44,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:01:44,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:01:44,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:01:44,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:01:44,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:01:44,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:01:44,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:01:44,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:01:44,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:01:44,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:01:44,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:01:44,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:01:44,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:01:44,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:01:44,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:01:44,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:01:44,408 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 [2020-10-12 18:01:44,437 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:01:44,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:01:44,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:01:44,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:01:44,439 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:01:44,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:01:44,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:01:44,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:01:44,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:01:44,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:01:44,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:01:44,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:01:44,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:01:44,440 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:01:44,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:01:44,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:01:44,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:01:44,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:01:44,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:01:44,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:01:44,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:01:44,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:01:44,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:01:44,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:01:44,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:01:44,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:01:44,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:01:44,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:01:44,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:01:44,443 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:01:44,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:01:44,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:01:44,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:01:44,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:01:44,744 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:01:44,745 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-10-12 18:01:44,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/254a74da4/f6cf4ca4bdd44af1882e1a8f30f0b2b2/FLAGa4b62aa82 [2020-10-12 18:01:45,360 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:01:45,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-10-12 18:01:45,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/254a74da4/f6cf4ca4bdd44af1882e1a8f30f0b2b2/FLAGa4b62aa82 [2020-10-12 18:01:45,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/254a74da4/f6cf4ca4bdd44af1882e1a8f30f0b2b2 [2020-10-12 18:01:45,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:01:45,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:01:45,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:01:45,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:01:45,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:01:45,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:01:45" (1/1) ... [2020-10-12 18:01:45,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb350db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:45, skipping insertion in model container [2020-10-12 18:01:45,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:01:45" (1/1) ... [2020-10-12 18:01:45,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:01:45,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:01:45,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:01:45,968 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:01:46,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:01:46,231 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:01:46,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46 WrapperNode [2020-10-12 18:01:46,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:01:46,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:01:46,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:01:46,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:01:46,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (1/1) ... [2020-10-12 18:01:46,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (1/1) ... [2020-10-12 18:01:46,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (1/1) ... [2020-10-12 18:01:46,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (1/1) ... [2020-10-12 18:01:46,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (1/1) ... [2020-10-12 18:01:46,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (1/1) ... [2020-10-12 18:01:46,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (1/1) ... [2020-10-12 18:01:46,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:01:46,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:01:46,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:01:46,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:01:46,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (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 [2020-10-12 18:01:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:01:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:01:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 18:01:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 18:01:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 18:01:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 18:01:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 18:01:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 18:01:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 18:01:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 18:01:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 18:01:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 18:01:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 18:01:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:01:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 18:01:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 18:01:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 18:01:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 18:01:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 18:01:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 18:01:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 18:01:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 18:01:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 18:01:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 18:01:46,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 18:01:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-12 18:01:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 18:01:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-12 18:01:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 18:01:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 18:01:46,436 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 18:01:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 18:01:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 18:01:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 18:01:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-12 18:01:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 18:01:46,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-12 18:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:01:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 18:01:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 18:01:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 18:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 18:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 18:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 18:01:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 18:01:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 18:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 18:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 18:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 18:01:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 18:01:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 18:01:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 18:01:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 18:01:46,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 18:01:46,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 18:01:46,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 18:01:46,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 18:01:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 18:01:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 18:01:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 18:01:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 18:01:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 18:01:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 18:01:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 18:01:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 18:01:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 18:01:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 18:01:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 18:01:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 18:01:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:01:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 18:01:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 18:01:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 18:01:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 18:01:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 18:01:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-12 18:01:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 18:01:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 18:01:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 18:01:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-12 18:01:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 18:01:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-12 18:01:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-12 18:01:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 18:01:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 18:01:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:01:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 18:01:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:01:47,493 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:01:47,493 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 18:01:47,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:01:47 BoogieIcfgContainer [2020-10-12 18:01:47,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:01:47,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:01:47,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:01:47,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:01:47,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:01:45" (1/3) ... [2020-10-12 18:01:47,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f2cc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:01:47, skipping insertion in model container [2020-10-12 18:01:47,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:01:46" (2/3) ... [2020-10-12 18:01:47,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f2cc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:01:47, skipping insertion in model container [2020-10-12 18:01:47,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:01:47" (3/3) ... [2020-10-12 18:01:47,507 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-10-12 18:01:47,517 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:01:47,525 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:01:47,540 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:01:47,561 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:01:47,562 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:01:47,562 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:01:47,562 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:01:47,562 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:01:47,563 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:01:47,563 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:01:47,563 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:01:47,583 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-10-12 18:01:47,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 18:01:47,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:01:47,592 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] [2020-10-12 18:01:47,593 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:01:47,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:01:47,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1120421974, now seen corresponding path program 1 times [2020-10-12 18:01:47,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:01:47,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272319170] [2020-10-12 18:01:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:01:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:48,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:48,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:48,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:49,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:51,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:52,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:01:52,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:01:52,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:01:52,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4693 [2020-10-12 18:01:52,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:01:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 18:01:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:01:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:01:52,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:01:53,066 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:01:53,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:01:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:53,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:53,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:01:53,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:01:53,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:01:53,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 18:01:53,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:01:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:01:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:01:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:01:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:01:53,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:01:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:53,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:53,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:01:53,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:01:53,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:01:53,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:01:53,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:01:53,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:01:53,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:01:53,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:01:53,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:01:53,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:01:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:53,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:53,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:01:53,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:01:53,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:01:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:01:53,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:01:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:01:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:01:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:01:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:01:53,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:01:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:53,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:53,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:01:53,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:01:53,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:01:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:01:53,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:01:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:01:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:01:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:01:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:01:53,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:01:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:53,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:53,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:01:53,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:01:53,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:01:53,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:01:53,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:01:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:01:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:01:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:01:53,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:01:53,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 18:01:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:53,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:53,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:01:53,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:01:53,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:01:53,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:01:53,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:01:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:01:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:01:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:01:53,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:01:53,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:01:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:53,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:53,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:01:53,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:01:53,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:01:53,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:01:53,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:01:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:01:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:01:53,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:01:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:01:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:01:53,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272319170] [2020-10-12 18:01:53,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:01:53,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:01:53,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607514803] [2020-10-12 18:01:53,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:01:53,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:01:53,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:01:53,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:01:53,421 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 7 states. [2020-10-12 18:01:54,000 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:01:55,238 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-12 18:01:55,556 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:01:55,803 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:01:56,371 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:01:56,706 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:01:57,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:01:57,789 INFO L93 Difference]: Finished difference Result 337 states and 481 transitions. [2020-10-12 18:01:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:01:57,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-12 18:01:57,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:01:57,817 INFO L225 Difference]: With dead ends: 337 [2020-10-12 18:01:57,817 INFO L226 Difference]: Without dead ends: 210 [2020-10-12 18:01:57,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:01:57,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-12 18:01:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 167. [2020-10-12 18:01:57,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-12 18:01:57,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 209 transitions. [2020-10-12 18:01:58,001 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 209 transitions. Word has length 46 [2020-10-12 18:01:58,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:01:58,002 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 209 transitions. [2020-10-12 18:01:58,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:01:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 209 transitions. [2020-10-12 18:01:58,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-12 18:01:58,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:01:58,016 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] [2020-10-12 18:01:58,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:01:58,016 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:01:58,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:01:58,017 INFO L82 PathProgramCache]: Analyzing trace with hash 691991339, now seen corresponding path program 1 times [2020-10-12 18:01:58,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:01:58,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860837730] [2020-10-12 18:01:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:01:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:01:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:01:58,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:01,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:01,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 18:02:01,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:02:01,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3854 [2020-10-12 18:02:01,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:02:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-12 18:02:01,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:02,235 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:02,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 18:02:02,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:02,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:02,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:02:02,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:02,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:02,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:02,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:02,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:02,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:02,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:02,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:02,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:02,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:02,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:02,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:02,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:02,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:02,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:02,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:02,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:02,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:02,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:02,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 18:02:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:02:02,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:02:02,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 18:02:02,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:02:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:02:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:02,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:02:02,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:02:02,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:02:02,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:02,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:02:02,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:02,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:02,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:02,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:02,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:02:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:02,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:02,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:02,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:02,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:02,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:02:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:02,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:02:02,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:02,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:02:02,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 18:02:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:02,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:02,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:02,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:02,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:02,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:02,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:02,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:02:02,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860837730] [2020-10-12 18:02:02,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:02:02,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:02:02,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643607419] [2020-10-12 18:02:02,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:02:02,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:02,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:02:02,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:02:02,713 INFO L87 Difference]: Start difference. First operand 167 states and 209 transitions. Second operand 13 states. [2020-10-12 18:02:03,204 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:03,950 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:04,441 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-12 18:02:04,784 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:02:05,068 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:02:05,462 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-12 18:02:05,707 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:02:05,983 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:02:06,277 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 18:02:06,604 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 18:02:06,863 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:07,150 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:07,506 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:02:07,777 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:02:08,078 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:08,364 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:08,893 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 18:02:09,198 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:02:09,599 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:09,877 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:02:10,180 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:10,463 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:02:11,832 INFO L93 Difference]: Finished difference Result 680 states and 1096 transitions. [2020-10-12 18:02:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 18:02:11,833 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 74 [2020-10-12 18:02:11,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:02:11,841 INFO L225 Difference]: With dead ends: 680 [2020-10-12 18:02:11,842 INFO L226 Difference]: Without dead ends: 537 [2020-10-12 18:02:11,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=248, Invalid=1158, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 18:02:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-12 18:02:11,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 432. [2020-10-12 18:02:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-10-12 18:02:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 603 transitions. [2020-10-12 18:02:11,980 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 603 transitions. Word has length 74 [2020-10-12 18:02:11,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:02:11,980 INFO L479 AbstractCegarLoop]: Abstraction has 432 states and 603 transitions. [2020-10-12 18:02:11,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:02:11,981 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 603 transitions. [2020-10-12 18:02:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 18:02:11,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:02:11,987 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-10-12 18:02:11,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:02:11,987 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:02:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:02:11,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1839656352, now seen corresponding path program 1 times [2020-10-12 18:02:11,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:02:11,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115385038] [2020-10-12 18:02:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:02:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:12,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:12,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:12,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:12,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-12 18:02:13,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:02:13,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1052 [2020-10-12 18:02:13,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-12 18:02:13,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:13,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,265 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:13,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:02:13,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:13,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:13,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:13,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:13,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:13,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:13,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:13,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:02:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:02:13,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:02:13,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 18:02:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:02:13,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:02:13,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:13,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 18:02:13,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:13,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:02:13,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:02:13,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:13,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:02:13,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:13,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:13,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:02:13,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:02:13,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:02:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:13,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:02:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:13,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:13,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:02:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:13,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:13,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 18:02:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:13,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 18:02:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:13,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 18:02:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:13,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:13,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 18:02:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:13,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:13,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:13,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:13,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:13,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:13,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:13,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 18:02:13,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115385038] [2020-10-12 18:02:13,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:02:13,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:02:13,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909660466] [2020-10-12 18:02:13,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:02:13,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:13,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:02:13,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:02:13,608 INFO L87 Difference]: Start difference. First operand 432 states and 603 transitions. Second operand 9 states. [2020-10-12 18:02:14,545 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:14,789 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:15,028 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:02:15,934 INFO L93 Difference]: Finished difference Result 866 states and 1341 transitions. [2020-10-12 18:02:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:02:15,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-12 18:02:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:02:15,940 INFO L225 Difference]: With dead ends: 866 [2020-10-12 18:02:15,940 INFO L226 Difference]: Without dead ends: 448 [2020-10-12 18:02:15,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:02:15,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-12 18:02:16,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 358. [2020-10-12 18:02:16,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-12 18:02:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 481 transitions. [2020-10-12 18:02:16,040 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 481 transitions. Word has length 93 [2020-10-12 18:02:16,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:02:16,042 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 481 transitions. [2020-10-12 18:02:16,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:02:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 481 transitions. [2020-10-12 18:02:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-12 18:02:16,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:02:16,049 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 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] [2020-10-12 18:02:16,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:02:16,049 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:02:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:02:16,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1761539495, now seen corresponding path program 1 times [2020-10-12 18:02:16,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:02:16,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571414749] [2020-10-12 18:02:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:02:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:16,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:16,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:16,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:16,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:16,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:16,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:16,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:16,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:16,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:17,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:20,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:20,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 18:02:20,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:02:20,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4602 [2020-10-12 18:02:20,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 18:02:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:20,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-12 18:02:20,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:20,986 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:20,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 18:02:21,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:02:21,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:21,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:21,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:21,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:21,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:21,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:21,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:21,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:21,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:21,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:02:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:02:21,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:21,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:21,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:02:21,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:02:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 18:02:21,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:02:21,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:21,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:02:21,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:21,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:02:21,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:02:21,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:21,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:21,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:21,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:02:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 18:02:21,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:02:21,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:21,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:02:21,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:21,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:21,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:02:21,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:21,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:21,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:21,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:02:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:02:21,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:02:21,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:21,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:21,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:02:21,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:02:21,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:02:21,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:02:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:02:21,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:21,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:21,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:02:21,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:21,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:02:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:21,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:21,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:02:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:02:21,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:02:21,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:21,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:21,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:21,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 18:02:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:21,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:02:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:02:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:02:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-12 18:02:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:21,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:02:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 18:02:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:21,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:21,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:21,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:21,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:21,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:21,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:21,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:21,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:21,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 22 proven. 15 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-12 18:02:21,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571414749] [2020-10-12 18:02:21,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:02:21,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-12 18:02:21,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368977578] [2020-10-12 18:02:21,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:02:21,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:21,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:02:21,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:02:21,456 INFO L87 Difference]: Start difference. First operand 358 states and 481 transitions. Second operand 15 states. [2020-10-12 18:02:21,870 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:22,443 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:23,061 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-10-12 18:02:23,368 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:23,619 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:24,059 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-12 18:02:24,336 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:24,605 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:25,682 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 18:02:26,236 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 186 [2020-10-12 18:02:26,460 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:02:27,139 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:02:27,424 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-12 18:02:27,674 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:27,915 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:02:28,996 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 188 [2020-10-12 18:02:29,474 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-10-12 18:02:29,940 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-10-12 18:02:31,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:02:31,516 INFO L93 Difference]: Finished difference Result 1228 states and 1900 transitions. [2020-10-12 18:02:31,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-12 18:02:31,517 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 139 [2020-10-12 18:02:31,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:02:31,527 INFO L225 Difference]: With dead ends: 1228 [2020-10-12 18:02:31,527 INFO L226 Difference]: Without dead ends: 928 [2020-10-12 18:02:31,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=552, Invalid=1704, Unknown=0, NotChecked=0, Total=2256 [2020-10-12 18:02:31,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-10-12 18:02:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 805. [2020-10-12 18:02:31,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-10-12 18:02:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1097 transitions. [2020-10-12 18:02:31,689 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1097 transitions. Word has length 139 [2020-10-12 18:02:31,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:02:31,689 INFO L479 AbstractCegarLoop]: Abstraction has 805 states and 1097 transitions. [2020-10-12 18:02:31,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:02:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1097 transitions. [2020-10-12 18:02:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-12 18:02:31,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:02:31,692 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 18:02:31,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:02:31,693 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:02:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:02:31,693 INFO L82 PathProgramCache]: Analyzing trace with hash 2101673143, now seen corresponding path program 1 times [2020-10-12 18:02:31,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:02:31,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965152284] [2020-10-12 18:02:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:02:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:31,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:31,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:31,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:31,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:02:32,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:02:32,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 837 [2020-10-12 18:02:32,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:32,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:32,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-12 18:02:32,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,771 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:02:32,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:02:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 18:02:32,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:02:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:02:32,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:32,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:32,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:32,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 18:02:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:32,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:32,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:32,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 18:02:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:32,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:32,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:32,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:32,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 18:02:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:02:32,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:32,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:32,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 18:02:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:02:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:32,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:32,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:32,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 18:02:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 18:02:32,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:02:32,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:32,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 18:02:32,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 18:02:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:32,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:02:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 18:02:32,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:02:32,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:02:32,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:32,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:02:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:32,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-12 18:02:32,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:02:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:32,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:02:32,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:32,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:32,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:32,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:32,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:32,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:32,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:32,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:02:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:32,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:32,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:33,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:33,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 18:02:33,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:02:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:02:33,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:33,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:33,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:02:33,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:02:33,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:33,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:33,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:33,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:33,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:33,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:33,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:33,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:33,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:33,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:02:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:33,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:33,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:33,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:02:33,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:33,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:02:33,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:33,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:33,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:33,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:02:33,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:33,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 18:02:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:33,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:33,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:33,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:33,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:33,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:33,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:33,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:33,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:33,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:33,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:33,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 18:02:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:33,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:33,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:33,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:33,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:02:33,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:02:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:02:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:02:33,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:33,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 18:02:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:33,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:33,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:33,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:33,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:33,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:33,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:33,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:33,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:33,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-12 18:02:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:02:33,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:02:33,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:02:33,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:02:33,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:02:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:02:33,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:02:33,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:02:33,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:02:33,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:02:33,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:02:33,111 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-12 18:02:33,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965152284] [2020-10-12 18:02:33,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:02:33,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 18:02:33,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360916942] [2020-10-12 18:02:33,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 18:02:33,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:02:33,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 18:02:33,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 18:02:33,118 INFO L87 Difference]: Start difference. First operand 805 states and 1097 transitions. Second operand 8 states. [2020-10-12 18:02:33,395 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:02:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:02:34,505 INFO L93 Difference]: Finished difference Result 1615 states and 2297 transitions. [2020-10-12 18:02:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 18:02:34,506 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-10-12 18:02:34,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:02:34,517 INFO L225 Difference]: With dead ends: 1615 [2020-10-12 18:02:34,517 INFO L226 Difference]: Without dead ends: 834 [2020-10-12 18:02:34,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:02:34,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-12 18:02:34,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 753. [2020-10-12 18:02:34,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-10-12 18:02:34,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1007 transitions. [2020-10-12 18:02:34,698 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1007 transitions. Word has length 124 [2020-10-12 18:02:34,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:02:34,700 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 1007 transitions. [2020-10-12 18:02:34,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 18:02:34,700 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1007 transitions. [2020-10-12 18:02:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-12 18:02:34,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:02:34,704 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 18:02:34,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:02:34,704 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:02:34,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:02:34,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1088865250, now seen corresponding path program 1 times [2020-10-12 18:02:34,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:02:34,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513231446] [2020-10-12 18:02:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:02:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 18:02:34,746 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 18:02:34,746 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 18:02:34,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:02:34,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:02:34 BoogieIcfgContainer [2020-10-12 18:02:34,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 18:02:34,798 INFO L168 Benchmark]: Toolchain (without parser) took 49217.97 ms. Allocated memory was 140.0 MB in the beginning and 756.5 MB in the end (delta: 616.6 MB). Free memory was 102.2 MB in the beginning and 248.2 MB in the end (delta: -146.1 MB). Peak memory consumption was 470.5 MB. Max. memory is 7.1 GB. [2020-10-12 18:02:34,798 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-12 18:02:34,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.29 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 174.7 MB in the end (delta: -72.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-10-12 18:02:34,808 INFO L168 Benchmark]: Boogie Preprocessor took 124.11 ms. Allocated memory is still 204.5 MB. Free memory was 174.7 MB in the beginning and 170.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-10-12 18:02:34,810 INFO L168 Benchmark]: RCFGBuilder took 1141.38 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 170.3 MB in the beginning and 203.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-10-12 18:02:34,813 INFO L168 Benchmark]: TraceAbstraction took 47295.69 ms. Allocated memory was 238.0 MB in the beginning and 756.5 MB in the end (delta: 518.5 MB). Free memory was 203.2 MB in the beginning and 248.2 MB in the end (delta: -45.1 MB). Peak memory consumption was 473.5 MB. Max. memory is 7.1 GB. [2020-10-12 18:02:34,816 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.29 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 174.7 MB in the end (delta: -72.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.11 ms. Allocated memory is still 204.5 MB. Free memory was 174.7 MB in the beginning and 170.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1141.38 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 170.3 MB in the beginning and 203.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 47295.69 ms. Allocated memory was 238.0 MB in the beginning and 756.5 MB in the end (delta: 518.5 MB). Free memory was 203.2 MB in the beginning and 248.2 MB in the end (delta: -45.1 MB). Peak memory consumption was 473.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) [L567] CALL waterRise() [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 [L567] RET waterRise() [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND TRUE ! pumpRunning [L754] CALL, EXPR isHighWaterLevel() [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L852] CALL, EXPR isHighWaterSensorDry() [L695] int retValue_acc ; [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); [L852] RET, EXPR isHighWaterSensorDry() [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); [L754] RET, EXPR isHighWaterLevel() [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) [L758] CALL activatePump() [L777] pumpRunning = 1 [L758] RET activatePump() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L598] RET timeShift() [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND TRUE \read(pumpRunning) [L722] CALL lowerWaterLevel() [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L722] RET lowerWaterLevel() [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L767] FCALL processEnvironment__wrappee__base() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) [L735] RET __utac_acc__Specification4_spec__1() [L598] RET timeShift() [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L598] CALL timeShift() [L720] COND TRUE \read(pumpRunning) [L722] CALL lowerWaterLevel() [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 [L722] RET lowerWaterLevel() [L727] COND TRUE \read(systemActive) [L729] CALL processEnvironment() [L749] int tmp ; [L752] COND FALSE !(! pumpRunning) [L767] FCALL processEnvironment__wrappee__base() [L729] RET processEnvironment() [L735] CALL __utac_acc__Specification4_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR getWaterLevel() [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] RET, EXPR getWaterLevel() [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 [L884] CALL, EXPR isPumpRunning() [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); [L884] RET, EXPR isPumpRunning() [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) [L888] CALL __automaton_fail() [L869] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 47.1s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 27.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 575 SDtfs, 1909 SDslu, 1210 SDs, 0 SdLazy, 4924 SolverSat, 1397 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 943 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=805occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 442 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.2s InterpolantComputationTime, 624 NumberOfCodeBlocks, 624 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 471 ConstructedInterpolants, 0 QuantifiedInterpolants, 210940 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 111/128 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...