/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:11:40,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:11:40,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:11:40,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:11:40,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:11:40,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:11:40,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:11:40,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:11:40,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:11:40,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:11:40,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:11:40,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:11:40,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:11:40,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:11:40,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:11:40,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:11:40,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:11:40,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:11:40,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:11:40,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:11:40,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:11:40,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:11:40,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:11:40,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:11:40,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:11:40,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:11:40,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:11:40,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:11:40,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:11:40,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:11:40,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:11:40,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:11:40,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:11:40,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:11:40,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:11:40,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:11:40,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:11:40,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:11:40,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:11:40,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:11:40,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:11:40,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:11:40,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:11:40,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:11:40,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:11:40,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:11:40,983 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:11:40,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:11:40,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:11:40,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:11:40,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:11:40,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:11:40,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:11:40,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:11:40,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:11:40,987 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:11:40,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:11:40,987 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:11:40,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:11:40,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:11:40,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:11:40,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:11:40,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:11:40,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:11:40,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:11:40,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:11:40,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:11:40,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:11:40,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:11:40,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:11:40,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:11:40,990 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.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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:11:41,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:11:41,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:11:41,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:11:41,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:11:41,472 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:11:41,473 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-09-21 12:11:41,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a572c335/b7656f56e6224fee8a292956118e7ed9/FLAG743207105 [2020-09-21 12:11:42,173 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:11:42,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-09-21 12:11:42,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a572c335/b7656f56e6224fee8a292956118e7ed9/FLAG743207105 [2020-09-21 12:11:42,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a572c335/b7656f56e6224fee8a292956118e7ed9 [2020-09-21 12:11:42,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:11:42,472 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:11:42,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:11:42,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:11:42,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:11:42,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:11:42" (1/1) ... [2020-09-21 12:11:42,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:42, skipping insertion in model container [2020-09-21 12:11:42,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:11:42" (1/1) ... [2020-09-21 12:11:42,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:11:42,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:11:43,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:11:43,132 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:11:43,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:11:43,325 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:11:43,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43 WrapperNode [2020-09-21 12:11:43,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:11:43,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:11:43,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:11:43,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:11:43,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (1/1) ... [2020-09-21 12:11:43,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (1/1) ... [2020-09-21 12:11:43,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (1/1) ... [2020-09-21 12:11:43,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (1/1) ... [2020-09-21 12:11:43,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (1/1) ... [2020-09-21 12:11:43,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (1/1) ... [2020-09-21 12:11:43,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (1/1) ... [2020-09-21 12:11:43,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:11:43,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:11:43,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:11:43,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:11:43,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:11:43,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:11:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:11:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:11:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:11:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:11:43,526 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:11:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:11:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:11:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:11:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:11:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:11:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:11:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:11:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:11:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:11:43,528 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:11:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:11:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:11:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:11:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:11:43,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:11:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:11:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-21 12:11:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:11:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:11:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:11:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:11:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:11:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:11:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:11:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:11:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:11:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:11:43,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:11:43,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:11:43,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:11:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:11:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:11:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:11:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:11:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:11:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:11:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:11:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:11:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:11:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:11:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:11:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:11:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:11:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:11:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:11:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:11:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:11:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:11:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:11:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:11:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:11:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:11:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:11:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:11:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:11:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:11:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:11:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:11:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:11:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:11:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-21 12:11:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:11:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:11:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:11:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:11:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:11:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:11:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:11:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:11:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:11:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:11:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:11:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:11:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:11:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:11:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:11:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:11:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:11:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:11:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:11:44,591 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:11:44,591 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:11:44,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:11:44 BoogieIcfgContainer [2020-09-21 12:11:44,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:11:44,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:11:44,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:11:44,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:11:44,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:11:42" (1/3) ... [2020-09-21 12:11:44,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7332723e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:11:44, skipping insertion in model container [2020-09-21 12:11:44,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:11:43" (2/3) ... [2020-09-21 12:11:44,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7332723e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:11:44, skipping insertion in model container [2020-09-21 12:11:44,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:11:44" (3/3) ... [2020-09-21 12:11:44,607 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-09-21 12:11:44,619 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:11:44,630 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:11:44,653 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:11:44,683 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:11:44,684 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:11:44,684 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:11:44,684 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:11:44,684 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:11:44,684 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:11:44,684 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:11:44,685 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:11:44,712 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-09-21 12:11:44,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:11:44,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:44,725 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] [2020-09-21 12:11:44,726 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:44,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:44,732 INFO L82 PathProgramCache]: Analyzing trace with hash 269315160, now seen corresponding path program 1 times [2020-09-21 12:11:44,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:44,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393932961] [2020-09-21 12:11:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:45,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:45,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:45,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:46,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:46,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:11:46,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:11:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1313 [2020-09-21 12:11:46,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:11:46,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:46,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-21 12:11:46,919 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:11:46,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:46,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:47,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:47,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:47,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-21 12:11:47,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:47,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-21 12:11:47,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:47,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:47,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:47,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:47,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:47,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:47,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:47,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:47,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:47,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:47,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:47,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:47,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:47,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:47,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:47,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:47,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:47,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:47,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:47,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:47,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:47,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:47,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:47,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:47,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:47,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:11:47,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:47,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:47,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:47,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:47,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:47,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:47,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:47,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:47,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:47,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:47,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:11:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:47,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:47,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:47,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:47,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:11:47,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:47,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:11:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:47,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:47,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:47,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:47,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:47,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:47,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:11:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:47,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:47,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:47,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:47,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:47,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:47,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:47,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:47,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393932961] [2020-09-21 12:11:47,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:47,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:11:47,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124977184] [2020-09-21 12:11:47,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:11:47,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:47,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:11:47,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:11:47,225 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-09-21 12:11:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:48,313 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2020-09-21 12:11:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:11:48,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 12:11:48,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:48,332 INFO L225 Difference]: With dead ends: 249 [2020-09-21 12:11:48,333 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 12:11:48,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:11:48,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 12:11:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-21 12:11:48,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 12:11:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-09-21 12:11:48,438 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 52 [2020-09-21 12:11:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:48,438 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-09-21 12:11:48,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:11:48,439 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-09-21 12:11:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 12:11:48,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:48,443 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] [2020-09-21 12:11:48,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:11:48,443 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:48,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:48,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1813296693, now seen corresponding path program 1 times [2020-09-21 12:11:48,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:48,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530259942] [2020-09-21 12:11:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:48,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:48,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:48,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 12:11:49,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:11:49,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-21 12:11:49,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:11:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:11:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:49,862 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:11:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:49,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:49,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:11:49,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:49,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:49,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:49,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:49,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:49,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:49,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:49,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:49,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:49,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:49,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:49,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:49,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:49,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:49,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:49,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:49,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:49,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:49,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:49,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:49,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:49,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:49,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:49,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:49,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:49,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:49,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:11:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:49,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:49,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:49,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:49,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:11:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:49,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:49,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:49,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:49,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:49,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:11:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:49,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:49,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:49,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:49,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:49,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:49,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:49,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:49,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:49,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:49,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:50,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530259942] [2020-09-21 12:11:50,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:50,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:11:50,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240626952] [2020-09-21 12:11:50,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:11:50,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:50,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:11:50,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:11:50,012 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 4 states. [2020-09-21 12:11:50,461 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:11:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:51,078 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2020-09-21 12:11:51,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:11:51,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 12:11:51,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:51,083 INFO L225 Difference]: With dead ends: 182 [2020-09-21 12:11:51,084 INFO L226 Difference]: Without dead ends: 119 [2020-09-21 12:11:51,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:11:51,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-21 12:11:51,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-21 12:11:51,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 12:11:51,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-09-21 12:11:51,117 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 53 [2020-09-21 12:11:51,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:51,117 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-09-21 12:11:51,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:11:51,117 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-09-21 12:11:51,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:11:51,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:51,120 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] [2020-09-21 12:11:51,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:11:51,120 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:51,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:51,120 INFO L82 PathProgramCache]: Analyzing trace with hash -2099874592, now seen corresponding path program 1 times [2020-09-21 12:11:51,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:51,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836105005] [2020-09-21 12:11:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:51,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:51,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:11:52,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:11:52,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:11:52,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:52,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:52,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 12:11:52,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:52,458 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:11:52,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:52,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:52,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-21 12:11:52,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:11:52,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:52,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:52,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:52,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:52,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:52,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:52,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:52,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:52,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:52,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:52,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:52,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:52,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:52,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:52,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:52,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:52,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:52,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:52,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:52,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:52,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:52,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:52,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:11:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:52,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:52,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:52,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:52,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:52,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:52,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:11:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:52,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:52,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:52,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:52,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:52,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:11:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:52,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:52,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:52,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:52,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:52,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:52,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836105005] [2020-09-21 12:11:52,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:52,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:11:52,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651445761] [2020-09-21 12:11:52,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:11:52,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:52,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:11:52,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:11:52,702 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-09-21 12:11:53,018 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:11:53,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:53,856 INFO L93 Difference]: Finished difference Result 191 states and 236 transitions. [2020-09-21 12:11:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:11:53,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 12:11:53,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:53,859 INFO L225 Difference]: With dead ends: 191 [2020-09-21 12:11:53,859 INFO L226 Difference]: Without dead ends: 119 [2020-09-21 12:11:53,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:11:53,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-21 12:11:53,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-21 12:11:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 12:11:53,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-09-21 12:11:53,905 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 57 [2020-09-21 12:11:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:53,906 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-09-21 12:11:53,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:11:53,906 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-09-21 12:11:53,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 12:11:53,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:53,908 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] [2020-09-21 12:11:53,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:11:53,909 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:53,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:53,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1251058736, now seen corresponding path program 1 times [2020-09-21 12:11:53,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:53,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321480944] [2020-09-21 12:11:53,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:54,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:54,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:54,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 12:11:54,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-21 12:11:54,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 12:11:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 12:11:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,354 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:11:55,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:11:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:55,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-21 12:11:55,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:55,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:11:55,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:11:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:55,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:11:55,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:55,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:11:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:55,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:55,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:55,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:11:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:55,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:11:55,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:55,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:55,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:55,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:11:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:55,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:55,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:11:55,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 12:11:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:11:55,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:11:55,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:11:55,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:11:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:11:55,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:55,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:55,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:11:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:55,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:11:55,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:11:55,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:55,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:11:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:55,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:11:55,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:11:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:11:55,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:11:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:11:55,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 12:11:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:11:55,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:11:55,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:11:55,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:11:55,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:11:55,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:11:55,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:11:55,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:11:55,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:11:55,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:11:55,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:11:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:11:55,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321480944] [2020-09-21 12:11:55,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:11:55,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:11:55,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290479064] [2020-09-21 12:11:55,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:11:55,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:11:55,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:11:55,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:11:55,656 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 8 states. [2020-09-21 12:11:56,084 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:11:57,501 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:11:57,876 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:11:58,255 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:11:58,699 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:11:59,106 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:11:59,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:11:59,398 INFO L93 Difference]: Finished difference Result 286 states and 379 transitions. [2020-09-21 12:11:59,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:11:59,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-21 12:11:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:11:59,404 INFO L225 Difference]: With dead ends: 286 [2020-09-21 12:11:59,404 INFO L226 Difference]: Without dead ends: 214 [2020-09-21 12:11:59,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:11:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-09-21 12:11:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 166. [2020-09-21 12:11:59,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-21 12:11:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 197 transitions. [2020-09-21 12:11:59,494 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 197 transitions. Word has length 65 [2020-09-21 12:11:59,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:11:59,496 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 197 transitions. [2020-09-21 12:11:59,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:11:59,496 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 197 transitions. [2020-09-21 12:11:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 12:11:59,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:11:59,507 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] [2020-09-21 12:11:59,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:11:59,507 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:11:59,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:11:59,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1559260886, now seen corresponding path program 1 times [2020-09-21 12:11:59,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:11:59,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806432370] [2020-09-21 12:11:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:11:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:11:59,572 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:11:59,572 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:11:59,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:11:59,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:11:59 BoogieIcfgContainer [2020-09-21 12:11:59,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:11:59,615 INFO L168 Benchmark]: Toolchain (without parser) took 17145.94 ms. Allocated memory was 140.5 MB in the beginning and 459.3 MB in the end (delta: 318.8 MB). Free memory was 101.7 MB in the beginning and 227.1 MB in the end (delta: -125.4 MB). Peak memory consumption was 193.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:11:59,617 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-21 12:11:59,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 853.42 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 172.1 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:11:59,625 INFO L168 Benchmark]: Boogie Preprocessor took 108.99 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 168.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:11:59,626 INFO L168 Benchmark]: RCFGBuilder took 1161.70 ms. Allocated memory was 203.4 MB in the beginning and 238.0 MB in the end (delta: 34.6 MB). Free memory was 168.2 MB in the beginning and 201.9 MB in the end (delta: -33.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:11:59,627 INFO L168 Benchmark]: TraceAbstraction took 15013.62 ms. Allocated memory was 238.0 MB in the beginning and 459.3 MB in the end (delta: 221.2 MB). Free memory was 201.9 MB in the beginning and 227.1 MB in the end (delta: -25.2 MB). Peak memory consumption was 196.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:11:59,640 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 853.42 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.9 MB in the beginning and 172.1 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.99 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 168.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1161.70 ms. Allocated memory was 203.4 MB in the beginning and 238.0 MB in the end (delta: 34.6 MB). Free memory was 168.2 MB in the beginning and 201.9 MB in the end (delta: -33.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15013.62 ms. Allocated memory was 238.0 MB in the beginning and 459.3 MB in the end (delta: 221.2 MB). Free memory was 201.9 MB in the beginning and 227.1 MB in the end (delta: -25.2 MB). Peak memory consumption was 196.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L173] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L243] CALL test() [L461] int splverifierCounter ; [L462] int tmp ; [L463] int tmp___0 ; [L464] int tmp___1 ; [L465] int tmp___2 ; [L468] splverifierCounter = 0 [L470] COND TRUE 1 [L472] COND TRUE splverifierCounter < 4 [L478] tmp = __VERIFIER_nondet_int() [L480] COND TRUE \read(tmp) [L482] CALL waterRise() [L64] COND TRUE waterLevel < 2 [L65] waterLevel = waterLevel + 1 [L482] RET waterRise() [L488] tmp___0 = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp___0)) [L498] tmp___2 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___2) [L513] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L312] int tmp ; [L315] COND FALSE !(\read(pumpRunning)) [L330] FCALL processEnvironment__wrappee__methaneQuery() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification3_spec__1() [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L433] CALL, EXPR isMethaneLevelCritical() [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L433] RET, EXPR isMethaneLevelCritical() [L433] tmp = isMethaneLevelCritical() [L435] COND FALSE !(\read(tmp)) [L439] CALL, EXPR getWaterLevel() [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L439] RET, EXPR getWaterLevel() [L439] tmp___0 = getWaterLevel() [L441] COND TRUE tmp___0 == 2 [L443] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L443] RET, EXPR isPumpRunning() [L443] tmp___1 = isPumpRunning() [L445] COND FALSE !(\read(tmp___1)) [L449] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 372 SDtfs, 447 SDslu, 180 SDs, 0 SdLazy, 904 SolverSat, 261 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 124 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 61170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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...