/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --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_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:53:11,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:53:11,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:53:12,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:53:12,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:53:12,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:53:12,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:53:12,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:53:12,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:53:12,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:53:12,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:53:12,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:53:12,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:53:12,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:53:12,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:53:12,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:53:12,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:53:12,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:53:12,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:53:12,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:53:12,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:53:12,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:53:12,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:53:12,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:53:12,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:53:12,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:53:12,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:53:12,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:53:12,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:53:12,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:53:12,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:53:12,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:53:12,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:53:12,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:53:12,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:53:12,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:53:12,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:53:12,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:53:12,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:53:12,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:53:12,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:53:12,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:53:12,142 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:53:12,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:53:12,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:53:12,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:53:12,145 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:53:12,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:53:12,146 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:53:12,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:53:12,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:53:12,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:53:12,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:53:12,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:53:12,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:53:12,148 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:53:12,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:53:12,149 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:53:12,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:53:12,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:53:12,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:53:12,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:53:12,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:53:12,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:53:12,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:53:12,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:53:12,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:53:12,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:53:12,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:53:12,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:53:12,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:53:12,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:53:12,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:53:12,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:53:12,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:53:12,618 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:53:12,618 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:53:12,619 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 02:53:12,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ce4627ff/dffcdbb5cead407e81ca47fdd1760b28/FLAG4ac8f3b4f [2020-09-25 02:53:13,312 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:53:13,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 02:53:13,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ce4627ff/dffcdbb5cead407e81ca47fdd1760b28/FLAG4ac8f3b4f [2020-09-25 02:53:13,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ce4627ff/dffcdbb5cead407e81ca47fdd1760b28 [2020-09-25 02:53:13,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:53:13,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:53:13,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:13,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:53:13,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:53:13,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:13" (1/1) ... [2020-09-25 02:53:13,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:13, skipping insertion in model container [2020-09-25 02:53:13,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:13" (1/1) ... [2020-09-25 02:53:13,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:53:13,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:53:14,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:14,155 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:53:14,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:14,286 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:53:14,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14 WrapperNode [2020-09-25 02:53:14,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:14,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:53:14,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:53:14,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:53:14,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:53:14,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:53:14,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:53:14,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:53:14,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:53:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:53:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:53:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:53:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:53:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:53:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:53:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:53:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:53:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:53:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:53:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:53:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:53:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:53:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:53:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:53:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:53:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:53:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:53:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:53:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:53:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:53:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:53:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:53:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:53:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:53:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:53:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:53:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:53:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:53:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:53:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:53:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:53:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:53:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:53:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:53:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:53:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:53:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:53:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:53:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:53:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:53:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:53:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:53:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:53:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:53:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:53:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:53:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:53:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:53:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:53:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:53:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:53:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:53:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:53:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:53:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:53:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:53:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:53:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:53:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:53:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:53:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:53:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:53:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:53:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:53:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:53:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:53:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:53:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:53:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:53:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:53:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:53:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:53:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:53:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:53:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:53:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:53:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:53:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:53:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:53:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:53:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:53:15,709 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:53:15,709 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:53:15,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:15 BoogieIcfgContainer [2020-09-25 02:53:15,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:53:15,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:53:15,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:53:15,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:53:15,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:53:13" (1/3) ... [2020-09-25 02:53:15,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32eb029b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:15, skipping insertion in model container [2020-09-25 02:53:15,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (2/3) ... [2020-09-25 02:53:15,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32eb029b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:15, skipping insertion in model container [2020-09-25 02:53:15,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:15" (3/3) ... [2020-09-25 02:53:15,726 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-25 02:53:15,739 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:53:15,751 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:53:15,775 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:53:15,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:53:15,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:53:15,808 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:53:15,809 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:53:15,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:53:15,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:53:15,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:53:15,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:53:15,836 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 02:53:15,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:53:15,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:15,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:15,858 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:15,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:15,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-25 02:53:15,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:15,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998301218] [2020-09-25 02:53:15,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:16,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:18,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:20,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:21,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:21,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:53:21,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:53:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 02:53:21,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:21,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:53:21,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:53:21,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 02:53:21,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:53:21,928 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:21,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:22,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 02:53:22,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:53:22,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:22,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:22,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:53:22,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:22,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:53:22,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:22,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:22,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:22,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:22,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:22,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:53:22,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:22,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:22,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:22,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:22,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:22,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:22,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:53:22,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:22,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:22,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:53:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:22,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:53:22,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:22,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:22,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:53:22,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998301218] [2020-09-25 02:53:22,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:22,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:53:22,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055352393] [2020-09-25 02:53:22,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:53:22,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:22,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:53:22,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:53:22,632 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 8 states. [2020-09-25 02:53:23,217 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:24,490 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:24,820 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:25,176 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:25,517 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:25,856 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:26,519 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:26,816 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:27,191 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:28,213 INFO L93 Difference]: Finished difference Result 559 states and 699 transitions. [2020-09-25 02:53:28,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:53:28,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:53:28,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:28,238 INFO L225 Difference]: With dead ends: 559 [2020-09-25 02:53:28,238 INFO L226 Difference]: Without dead ends: 379 [2020-09-25 02:53:28,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:53:28,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-09-25 02:53:28,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 334. [2020-09-25 02:53:28,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-25 02:53:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 382 transitions. [2020-09-25 02:53:28,371 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 382 transitions. Word has length 142 [2020-09-25 02:53:28,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:28,372 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 382 transitions. [2020-09-25 02:53:28,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:53:28,373 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 382 transitions. [2020-09-25 02:53:28,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 02:53:28,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:28,378 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:28,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:53:28,379 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:28,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:28,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1702989338, now seen corresponding path program 1 times [2020-09-25 02:53:28,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:28,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620606565] [2020-09-25 02:53:28,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:28,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:28,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:28,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:33,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:33,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 02:53:33,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:53:33,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 02:53:33,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:33,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:53:33,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:53:33,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 02:53:33,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:33,724 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:33,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:33,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:33,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:33,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:33,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:33,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-25 02:53:33,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:33,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:33,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:53:33,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:34,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:34,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:34,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:34,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:34,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:34,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:34,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:34,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:34,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:34,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 02:53:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:53:34,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:53:34,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 02:53:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 02:53:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:53:34,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:34,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:53:34,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:34,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:34,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 02:53:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:34,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:34,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 02:53:34,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:53:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:53:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:53:34,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:34,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 02:53:34,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:34,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:53:34,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:34,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:34,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:34,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:34,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:34,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:53:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 02:53:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:34,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:34,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:34,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 02:53:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:34,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:34,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:34,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 02:53:34,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620606565] [2020-09-25 02:53:34,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:34,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 02:53:34,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43722937] [2020-09-25 02:53:34,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 02:53:34,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:34,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 02:53:34,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:53:34,395 INFO L87 Difference]: Start difference. First operand 334 states and 382 transitions. Second operand 12 states. [2020-09-25 02:53:34,889 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:36,190 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:36,586 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:36,928 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:37,303 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:53:37,665 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:38,032 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:38,361 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:39,105 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:39,430 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:39,786 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:53:40,168 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:40,564 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:40,899 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:43,006 INFO L93 Difference]: Finished difference Result 980 states and 1271 transitions. [2020-09-25 02:53:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 02:53:43,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 200 [2020-09-25 02:53:43,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:43,021 INFO L225 Difference]: With dead ends: 980 [2020-09-25 02:53:43,021 INFO L226 Difference]: Without dead ends: 756 [2020-09-25 02:53:43,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2020-09-25 02:53:43,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-25 02:53:43,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 555. [2020-09-25 02:53:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-09-25 02:53:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 647 transitions. [2020-09-25 02:53:43,155 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 647 transitions. Word has length 200 [2020-09-25 02:53:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:43,156 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 647 transitions. [2020-09-25 02:53:43,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 02:53:43,156 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 647 transitions. [2020-09-25 02:53:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 02:53:43,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:43,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:43,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:53:43,161 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:43,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:43,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1523867426, now seen corresponding path program 1 times [2020-09-25 02:53:43,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:43,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968507097] [2020-09-25 02:53:43,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:43,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:43,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:44,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:48,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:48,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 02:53:48,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:53:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 02:53:48,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:53:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:53:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-25 02:53:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:48,636 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:48,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:48,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:48,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:48,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:48,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:48,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 02:53:48,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:48,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:53:48,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:49,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:49,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:49,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:49,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:49,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:49,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:49,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:49,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:49,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:49,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:49,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:49,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:53:49,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:49,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:49,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:49,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:49,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:49,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:49,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:49,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:49,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:49,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 02:53:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:49,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:49,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 02:53:49,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 02:53:49,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:49,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:49,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:49,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 02:53:49,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:53:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:53:49,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:49,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:49,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:53:49,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:53:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:49,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:49,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:49,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:49,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:49,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:49,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 02:53:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:49,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:53:49,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:49,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:49,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 02:53:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:49,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:49,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:49,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:49,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:49,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:49,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:49,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:53:49,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968507097] [2020-09-25 02:53:49,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:49,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 02:53:49,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412198686] [2020-09-25 02:53:49,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 02:53:49,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:49,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 02:53:49,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:53:49,482 INFO L87 Difference]: Start difference. First operand 555 states and 647 transitions. Second operand 13 states. [2020-09-25 02:53:50,188 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:51,210 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:51,494 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:51,841 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:52,223 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:52,545 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:53,073 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:53,415 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:53,722 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:54,041 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:54,326 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:54,585 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:54,911 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:55,213 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:55,530 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:55,936 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:56,332 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:56,623 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:56,953 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:58,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:58,658 INFO L93 Difference]: Finished difference Result 1682 states and 2262 transitions. [2020-09-25 02:53:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 02:53:58,661 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 176 [2020-09-25 02:53:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:58,675 INFO L225 Difference]: With dead ends: 1682 [2020-09-25 02:53:58,675 INFO L226 Difference]: Without dead ends: 1148 [2020-09-25 02:53:58,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=184, Invalid=872, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 02:53:58,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2020-09-25 02:53:58,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 933. [2020-09-25 02:53:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-09-25 02:53:58,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1084 transitions. [2020-09-25 02:53:58,826 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1084 transitions. Word has length 176 [2020-09-25 02:53:58,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:58,827 INFO L479 AbstractCegarLoop]: Abstraction has 933 states and 1084 transitions. [2020-09-25 02:53:58,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 02:53:58,827 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1084 transitions. [2020-09-25 02:53:58,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 02:53:58,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:58,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:58,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:53:58,832 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:58,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:58,832 INFO L82 PathProgramCache]: Analyzing trace with hash -580417043, now seen corresponding path program 1 times [2020-09-25 02:53:58,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:58,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971819998] [2020-09-25 02:53:58,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:58,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 02:54:00,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1297 [2020-09-25 02:54:00,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:54:00,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:54:00,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 02:54:00,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:00,458 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:00,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:00,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 02:54:00,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:54:00,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:00,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:00,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:00,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:00,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:00,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:00,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:00,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:00,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:00,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:00,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:00,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:00,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:00,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:00,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:00,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:00,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:00,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:00,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:54:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:54:00,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 02:54:00,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:54:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 02:54:00,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:00,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:54:00,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:54:00,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:00,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:00,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:00,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:54:00,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:00,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:00,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:00,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:00,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:00,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:00,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:00,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:00,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 02:54:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:00,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:00,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:00,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:00,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:00,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:01,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:01,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 02:54:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:01,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:01,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:01,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:01,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:01,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:01,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:54:01,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971819998] [2020-09-25 02:54:01,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:01,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:54:01,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004746731] [2020-09-25 02:54:01,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:54:01,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:01,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:54:01,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:54:01,055 INFO L87 Difference]: Start difference. First operand 933 states and 1084 transitions. Second operand 9 states. [2020-09-25 02:54:01,561 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:02,195 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186