/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:01:29,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:01:29,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:01:29,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:01:29,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:01:29,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:01:29,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:01:29,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:01:29,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:01:29,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:01:29,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:01:29,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:01:29,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:01:29,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:01:29,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:01:29,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:01:29,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:01:29,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:01:29,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:01:29,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:01:29,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:01:29,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:01:29,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:01:29,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:01:29,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:01:29,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:01:29,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:01:29,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:01:29,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:01:29,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:01:29,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:01:29,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:01:29,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:01:29,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:01:29,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:01:29,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:01:29,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:01:29,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:01:29,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:01:29,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:01:29,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:01:29,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:01:29,132 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:01:29,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:01:29,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:01:29,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:01:29,134 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:01:29,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:01:29,134 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:01:29,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:01:29,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:01:29,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:01:29,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:01:29,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:01:29,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:01:29,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:01:29,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:01:29,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:01:29,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:01:29,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:01:29,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:01:29,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:01:29,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:01:29,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:01:29,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:01:29,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:01:29,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:01:29,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:01:29,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:01:29,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:01:29,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:01:29,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:01:29,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:01:29,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:01:29,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:01:29,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:01:29,478 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:01:29,478 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-14 07:01:29,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75a9aff56/f9258ca714864a2eb99d43067f2d74f1/FLAG3b506ba76 [2020-10-14 07:01:30,072 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:01:30,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-14 07:01:30,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75a9aff56/f9258ca714864a2eb99d43067f2d74f1/FLAG3b506ba76 [2020-10-14 07:01:30,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75a9aff56/f9258ca714864a2eb99d43067f2d74f1 [2020-10-14 07:01:30,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:01:30,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:01:30,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:01:30,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:01:30,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:01:30,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:01:30" (1/1) ... [2020-10-14 07:01:30,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bf98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:30, skipping insertion in model container [2020-10-14 07:01:30,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:01:30" (1/1) ... [2020-10-14 07:01:30,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:01:30,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:01:30,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:01:30,962 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:01:31,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:01:31,125 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:01:31,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31 WrapperNode [2020-10-14 07:01:31,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:01:31,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:01:31,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:01:31,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:01:31,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (1/1) ... [2020-10-14 07:01:31,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (1/1) ... [2020-10-14 07:01:31,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (1/1) ... [2020-10-14 07:01:31,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (1/1) ... [2020-10-14 07:01:31,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (1/1) ... [2020-10-14 07:01:31,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (1/1) ... [2020-10-14 07:01:31,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (1/1) ... [2020-10-14 07:01:31,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:01:31,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:01:31,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:01:31,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:01:31,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:01:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:01:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:01:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:01:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:01:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:01:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:01:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:01:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:01:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:01:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:01:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:01:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-14 07:01:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:01:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:01:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:01:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:01:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:01:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:01:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-14 07:01:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-14 07:01:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-14 07:01:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:01:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:01:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:01:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:01:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:01:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:01:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-14 07:01:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-14 07:01:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:01:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:01:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:01:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:01:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:01:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:01:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-14 07:01:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:01:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:01:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:01:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:01:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:01:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:01:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:01:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:01:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:01:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:01:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:01:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:01:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:01:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:01:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:01:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-14 07:01:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:01:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:01:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:01:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:01:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:01:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:01:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-14 07:01:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-14 07:01:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:01:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:01:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:01:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:01:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-14 07:01:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:01:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:01:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-14 07:01:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:01:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-14 07:01:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-14 07:01:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:01:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:01:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:01:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:01:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:01:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:01:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:01:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:01:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:01:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:01:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:01:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:01:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:01:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:01:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:01:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:01:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:01:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:01:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:01:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:01:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:01:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:01:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:01:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:01:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:01:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:01:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:01:32,373 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:01:32,373 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:01:32,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:01:32 BoogieIcfgContainer [2020-10-14 07:01:32,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:01:32,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:01:32,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:01:32,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:01:32,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:01:30" (1/3) ... [2020-10-14 07:01:32,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df9b609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:01:32, skipping insertion in model container [2020-10-14 07:01:32,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:31" (2/3) ... [2020-10-14 07:01:32,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df9b609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:01:32, skipping insertion in model container [2020-10-14 07:01:32,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:01:32" (3/3) ... [2020-10-14 07:01:32,387 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-10-14 07:01:32,399 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:01:32,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:01:32,422 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:01:32,448 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:01:32,449 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:01:32,449 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:01:32,449 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:01:32,450 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:01:32,450 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:01:32,450 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:01:32,450 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:01:32,474 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-10-14 07:01:32,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 07:01:32,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:32,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:01:32,487 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:32,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:32,494 INFO L82 PathProgramCache]: Analyzing trace with hash 616057763, now seen corresponding path program 1 times [2020-10-14 07:01:32,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:32,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569463414] [2020-10-14 07:01:32,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:32,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:32,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:33,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:34,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:34,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:37,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:37,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 07:01:37,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:01:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 07:01:37,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:37,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:01:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:37,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-14 07:01:38,139 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:38,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:38,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:38,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:38,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 07:01:38,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:38,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:38,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:38,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:38,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:38,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:38,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:38,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:38,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:38,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:38,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:38,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:38,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:38,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:38,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:38,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:38,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:38,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:38,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:38,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:38,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:38,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:38,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:38,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:38,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:38,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:38,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:38,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:38,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:01:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:38,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:38,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:38,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:38,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:38,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:38,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:38,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:38,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:38,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:38,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:38,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:01:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:38,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:38,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:38,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:38,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:38,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:38,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:38,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:38,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:38,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:38,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:38,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:38,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569463414] [2020-10-14 07:01:38,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:38,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:01:38,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472863251] [2020-10-14 07:01:38,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:01:38,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:38,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:01:38,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:01:38,349 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 3 states. [2020-10-14 07:01:39,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:39,717 INFO L93 Difference]: Finished difference Result 343 states and 450 transitions. [2020-10-14 07:01:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:01:39,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-14 07:01:39,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:39,735 INFO L225 Difference]: With dead ends: 343 [2020-10-14 07:01:39,735 INFO L226 Difference]: Without dead ends: 185 [2020-10-14 07:01:39,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:01:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-14 07:01:39,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 149. [2020-10-14 07:01:39,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-14 07:01:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2020-10-14 07:01:39,838 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 46 [2020-10-14 07:01:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:39,839 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2020-10-14 07:01:39,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:01:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2020-10-14 07:01:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-14 07:01:39,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:39,851 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] [2020-10-14 07:01:39,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:01:39,853 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:39,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:39,854 INFO L82 PathProgramCache]: Analyzing trace with hash -2016430514, now seen corresponding path program 1 times [2020-10-14 07:01:39,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:39,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007332199] [2020-10-14 07:01:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:39,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:39,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:40,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:42,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:44,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:44,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 07:01:44,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:01:44,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 07:01:44,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:44,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:44,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:01:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:01:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,171 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:45,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:01:45,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:45,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:45,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:45,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:45,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:45,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:45,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:45,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:01:45,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:01:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:45,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:45,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:45,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:01:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:45,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:45,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:45,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:45,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:01:45,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:45,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:45,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:45,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:45,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:01:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:45,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007332199] [2020-10-14 07:01:45,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:45,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:01:45,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697091909] [2020-10-14 07:01:45,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:01:45,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:45,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:01:45,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:01:45,286 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand 4 states. [2020-10-14 07:01:45,730 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:46,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:46,814 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2020-10-14 07:01:46,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:01:46,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-14 07:01:46,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:46,819 INFO L225 Difference]: With dead ends: 270 [2020-10-14 07:01:46,820 INFO L226 Difference]: Without dead ends: 169 [2020-10-14 07:01:46,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:01:46,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-14 07:01:46,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2020-10-14 07:01:46,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 07:01:46,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2020-10-14 07:01:46,896 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 47 [2020-10-14 07:01:46,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:46,897 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2020-10-14 07:01:46,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:01:46,897 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2020-10-14 07:01:46,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 07:01:46,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:46,901 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] [2020-10-14 07:01:46,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:01:46,902 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:46,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:46,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1603631393, now seen corresponding path program 1 times [2020-10-14 07:01:46,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:46,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675904583] [2020-10-14 07:01:46,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:46,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:47,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:47,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:47,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:49,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:49,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 07:01:49,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:01:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3010 [2020-10-14 07:01:49,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:49,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:49,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:49,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 07:01:49,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 07:01:49,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,258 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:50,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 07:01:50,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:50,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:50,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:50,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:50,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:50,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:50,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:50,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:50,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:50,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:50,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:50,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:50,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:50,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:01:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:50,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:50,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:01:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:50,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:01:50,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:50,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:50,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675904583] [2020-10-14 07:01:50,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:50,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:01:50,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212850979] [2020-10-14 07:01:50,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:01:50,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:50,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:01:50,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:01:50,412 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand 7 states. [2020-10-14 07:01:50,794 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:51,687 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:01:52,005 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:01:52,259 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:01:52,835 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:53,106 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:54,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:54,005 INFO L93 Difference]: Finished difference Result 353 states and 455 transitions. [2020-10-14 07:01:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:01:54,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-14 07:01:54,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:54,010 INFO L225 Difference]: With dead ends: 353 [2020-10-14 07:01:54,010 INFO L226 Difference]: Without dead ends: 237 [2020-10-14 07:01:54,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-14 07:01:54,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-14 07:01:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 215. [2020-10-14 07:01:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-14 07:01:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 262 transitions. [2020-10-14 07:01:54,079 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 262 transitions. Word has length 51 [2020-10-14 07:01:54,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:54,080 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 262 transitions. [2020-10-14 07:01:54,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:01:54,080 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 262 transitions. [2020-10-14 07:01:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:01:54,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:54,081 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] [2020-10-14 07:01:54,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:01:54,082 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:54,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:54,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1036169484, now seen corresponding path program 1 times [2020-10-14 07:01:54,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:54,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028470104] [2020-10-14 07:01:54,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:54,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:54,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:01:56,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:56,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2275 [2020-10-14 07:01:56,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 07:01:56,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:56,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:56,623 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:56,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:56,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 07:01:56,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:56,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:56,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:56,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:56,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:56,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:56,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:56,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:56,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:56,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:56,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:56,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:56,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:56,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:56,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:01:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 07:01:56,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:01:56,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 07:01:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:56,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:56,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:56,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 07:01:56,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 07:01:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:56,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:56,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 07:01:56,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:56,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:01:56,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:56,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:56,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:01:56,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:56,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:01:56,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:56,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:56,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:56,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:56,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:01:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:56,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:56,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:56,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:01:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:56,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:56,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:56,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:56,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:56,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:56,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:56,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028470104] [2020-10-14 07:01:56,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:56,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:01:56,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156741247] [2020-10-14 07:01:56,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:01:56,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:56,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:01:56,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:01:56,960 INFO L87 Difference]: Start difference. First operand 215 states and 262 transitions. Second operand 8 states. [2020-10-14 07:01:58,004 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:58,238 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:01:58,493 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:58,738 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:01:59,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:59,573 INFO L93 Difference]: Finished difference Result 450 states and 578 transitions. [2020-10-14 07:01:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:01:59,574 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-14 07:01:59,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:59,577 INFO L225 Difference]: With dead ends: 450 [2020-10-14 07:01:59,578 INFO L226 Difference]: Without dead ends: 259 [2020-10-14 07:01:59,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:01:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-14 07:01:59,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 223. [2020-10-14 07:01:59,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-14 07:01:59,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 270 transitions. [2020-10-14 07:01:59,627 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 270 transitions. Word has length 84 [2020-10-14 07:01:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:59,627 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 270 transitions. [2020-10-14 07:01:59,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:01:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 270 transitions. [2020-10-14 07:01:59,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:01:59,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:59,629 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] [2020-10-14 07:01:59,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:01:59,629 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:59,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:59,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1310929098, now seen corresponding path program 1 times [2020-10-14 07:01:59,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:59,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807181114] [2020-10-14 07:01:59,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:59,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:02:01,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:02:01,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1925 [2020-10-14 07:02:01,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:02:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 07:02:01,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:01,806 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:02:01,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:02:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:01,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 07:02:01,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:01,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:02:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:01,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:01,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:01,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:02:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:01,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:02:01,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:01,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:02:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:01,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:01,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:01,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:02:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:01,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:02:01,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:01,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:01,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:02:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 07:02:01,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:02:01,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:02:01,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 07:02:01,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:01,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:02:01,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:02:01,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:02:01,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 07:02:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:01,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:02:01,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 07:02:01,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:02:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:02:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:01,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:02:01,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:02:01,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:02:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:02:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:02:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:02:01,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:02:01,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:02:01,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:02,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:02:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:02,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:02,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:02,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:02,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:02,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:02,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:02,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:02,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:02,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:02,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:02:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:02,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:02,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:02,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:02,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:02,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:02,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:02,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:02,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:02,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:02:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:02,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:02,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:02,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:02,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:02,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:02,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:02,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:02,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:02,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:02:02,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807181114] [2020-10-14 07:02:02,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:02:02,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:02:02,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192887319] [2020-10-14 07:02:02,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:02:02,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:02:02,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:02:02,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:02:02,042 INFO L87 Difference]: Start difference. First operand 223 states and 270 transitions. Second operand 7 states. [2020-10-14 07:02:02,977 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:02:03,226 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:02:03,464 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:02:04,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:02:04,331 INFO L93 Difference]: Finished difference Result 465 states and 606 transitions. [2020-10-14 07:02:04,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:02:04,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-14 07:02:04,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:02:04,336 INFO L225 Difference]: With dead ends: 465 [2020-10-14 07:02:04,336 INFO L226 Difference]: Without dead ends: 266 [2020-10-14 07:02:04,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:02:04,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-14 07:02:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2020-10-14 07:02:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-14 07:02:04,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 274 transitions. [2020-10-14 07:02:04,380 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 274 transitions. Word has length 84 [2020-10-14 07:02:04,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:02:04,380 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 274 transitions. [2020-10-14 07:02:04,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:02:04,380 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 274 transitions. [2020-10-14 07:02:04,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:02:04,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:02:04,382 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] [2020-10-14 07:02:04,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:02:04,382 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:02:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:02:04,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1033737943, now seen corresponding path program 1 times [2020-10-14 07:02:04,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:02:04,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404765167] [2020-10-14 07:02:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:02:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:04,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:04,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:02:06,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:02:06,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1664 [2020-10-14 07:02:06,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:02:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:06,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 07:02:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,299 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:02:06,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:02:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:06,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 07:02:06,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:02:06,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:06,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:02:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:06,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:02:06,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:06,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:06,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:02:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:06,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:06,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:06,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:02:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:06,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:06,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:06,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:06,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:02:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:06,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:06,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:06,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:06,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:02:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 07:02:06,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 07:02:06,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:06,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 07:02:06,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:02:06,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:02:06,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:06,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:02:06,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:02:06,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:06,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:06,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:02:06,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:02:06,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:06,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:02:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:02:06,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:06,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:06,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:02:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:06,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:06,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:02:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:06,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:02:06,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:02:06,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:06,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:02:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:06,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:06,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:06,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:06,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:06,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:06,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:06,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:02:06,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404765167] [2020-10-14 07:02:06,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:02:06,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:02:06,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19924826] [2020-10-14 07:02:06,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:02:06,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:02:06,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:02:06,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:02:06,535 INFO L87 Difference]: Start difference. First operand 227 states and 274 transitions. Second operand 8 states. [2020-10-14 07:02:06,935 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:02:07,570 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:02:07,788 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:02:08,041 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:02:08,335 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:02:08,660 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:02:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:02:10,482 INFO L93 Difference]: Finished difference Result 681 states and 883 transitions. [2020-10-14 07:02:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:02:10,483 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-14 07:02:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:02:10,487 INFO L225 Difference]: With dead ends: 681 [2020-10-14 07:02:10,487 INFO L226 Difference]: Without dead ends: 478 [2020-10-14 07:02:10,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:02:10,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-10-14 07:02:10,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 415. [2020-10-14 07:02:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-14 07:02:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 507 transitions. [2020-10-14 07:02:10,561 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 507 transitions. Word has length 84 [2020-10-14 07:02:10,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:02:10,562 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 507 transitions. [2020-10-14 07:02:10,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:02:10,562 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 507 transitions. [2020-10-14 07:02:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 07:02:10,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:02:10,564 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] [2020-10-14 07:02:10,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:02:10,564 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:02:10,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:02:10,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1039639525, now seen corresponding path program 1 times [2020-10-14 07:02:10,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:02:10,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72250431] [2020-10-14 07:02:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:02:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:10,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 07:02:11,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-14 07:02:11,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:02:11,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:11,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 07:02:11,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,299 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:02:11,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:02:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:11,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 07:02:11,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:02:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:11,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:02:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:11,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:02:11,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:11,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:11,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:02:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:11,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:11,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:11,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:02:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:11,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:02:11,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:11,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:02:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:11,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:11,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:11,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:02:11,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 07:02:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:11,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:02:11,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:11,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:02:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 07:02:11,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:02:11,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 07:02:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:02:11,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:02:11,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:02:11,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:02:11,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:02:11,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:02:11,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 07:02:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:02:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:02:11,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:02:11,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:02:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:02:11,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:02:11,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:02:11,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:02:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:11,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:02:11,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:11,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:11,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:02:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:11,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:11,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:11,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:11,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:02:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:11,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:11,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:11,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:11,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:11,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:11,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:11,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:11,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:11,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:11,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:02:11,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72250431] [2020-10-14 07:02:11,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:02:11,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:02:11,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115658621] [2020-10-14 07:02:11,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:02:11,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:02:11,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:02:11,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:02:11,617 INFO L87 Difference]: Start difference. First operand 415 states and 507 transitions. Second operand 7 states. [2020-10-14 07:02:11,979 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:02:12,512 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:02:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:02:15,059 INFO L93 Difference]: Finished difference Result 1308 states and 1765 transitions. [2020-10-14 07:02:15,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 07:02:15,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-14 07:02:15,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:02:15,068 INFO L225 Difference]: With dead ends: 1308 [2020-10-14 07:02:15,068 INFO L226 Difference]: Without dead ends: 917 [2020-10-14 07:02:15,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:02:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-10-14 07:02:15,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 791. [2020-10-14 07:02:15,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-10-14 07:02:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 977 transitions. [2020-10-14 07:02:15,263 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 977 transitions. Word has length 88 [2020-10-14 07:02:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:02:15,265 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 977 transitions. [2020-10-14 07:02:15,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:02:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 977 transitions. [2020-10-14 07:02:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 07:02:15,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:02:15,267 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] [2020-10-14 07:02:15,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:02:15,267 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:02:15,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:02:15,267 INFO L82 PathProgramCache]: Analyzing trace with hash 745790239, now seen corresponding path program 1 times [2020-10-14 07:02:15,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:02:15,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025719098] [2020-10-14 07:02:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:02:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:02:15,299 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:02:15,300 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:02:15,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:02:15,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:02:15 BoogieIcfgContainer [2020-10-14 07:02:15,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:02:15,328 INFO L168 Benchmark]: Toolchain (without parser) took 44938.21 ms. Allocated memory was 145.8 MB in the beginning and 822.1 MB in the end (delta: 676.3 MB). Free memory was 100.6 MB in the beginning and 727.8 MB in the end (delta: -627.2 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:15,328 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 07:02:15,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.59 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 100.6 MB in the beginning and 169.3 MB in the end (delta: -68.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:15,330 INFO L168 Benchmark]: Boogie Preprocessor took 92.50 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 164.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:15,331 INFO L168 Benchmark]: RCFGBuilder took 1159.94 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 164.3 MB in the beginning and 193.3 MB in the end (delta: -29.0 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:15,332 INFO L168 Benchmark]: TraceAbstraction took 42945.93 ms. Allocated memory was 235.4 MB in the beginning and 822.1 MB in the end (delta: 586.7 MB). Free memory was 191.6 MB in the beginning and 727.8 MB in the end (delta: -536.3 MB). Peak memory consumption was 50.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:15,335 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 733.59 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 100.6 MB in the beginning and 169.3 MB in the end (delta: -68.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.50 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 164.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1159.94 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 164.3 MB in the beginning and 193.3 MB in the end (delta: -29.0 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42945.93 ms. Allocated memory was 235.4 MB in the beginning and 822.1 MB in the end (delta: 586.7 MB). Free memory was 191.6 MB in the beginning and 727.8 MB in the end (delta: -536.3 MB). Peak memory consumption was 50.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L584] int retValue_acc ; [L585] int tmp ; [L589] FCALL select_helpers() [L590] FCALL select_features() [L591] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L591] RET, EXPR valid_product() [L591] tmp = valid_product() [L593] COND TRUE \read(tmp) [L595] FCALL setup() [L596] CALL runTest() [L578] CALL test() [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] splverifierCounter = 0 [L93] COND TRUE 1 [L95] COND TRUE splverifierCounter < 4 [L101] tmp = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp) [L105] CALL waterRise() [L417] COND TRUE waterLevel < 2 [L418] waterLevel = waterLevel + 1 [L105] RET waterRise() [L111] tmp___0 = __VERIFIER_nondet_int() [L113] COND TRUE \read(tmp___0) [L115] CALL changeMethaneLevel() [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] methaneLevelCritical = 1 [L115] RET changeMethaneLevel() [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) [L138] CALL timeShift() [L167] COND FALSE !(\read(pumpRunning)) [L174] COND TRUE \read(systemActive) [L176] CALL processEnvironment() [L248] int tmp ; [L251] COND FALSE !(\read(pumpRunning)) [L266] CALL processEnvironment__wrappee__lowWaterSensor() [L222] int tmp ; [L225] COND FALSE !(\read(pumpRunning)) [L240] CALL processEnvironment__wrappee__highWaterSensor() [L196] int tmp ; [L199] COND TRUE ! pumpRunning [L201] CALL, EXPR isHighWaterLevel() [L345] int retValue_acc ; [L346] int tmp ; [L347] int tmp___0 ; [L351] CALL, EXPR isHighWaterSensorDry() [L479] int retValue_acc ; [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] return (retValue_acc); [L351] RET, EXPR isHighWaterSensorDry() [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] tmp___0 = 1 [L358] retValue_acc = tmp___0 [L359] return (retValue_acc); [L201] RET, EXPR isHighWaterLevel() [L201] tmp = isHighWaterLevel() [L203] COND TRUE \read(tmp) [L205] CALL activatePump() [L276] pumpRunning = 1 [L205] RET activatePump() [L240] RET processEnvironment__wrappee__highWaterSensor() [L266] RET processEnvironment__wrappee__lowWaterSensor() [L176] RET processEnvironment() [L182] CALL __utac_acc__Specification1_spec__1() [L608] int tmp ; [L609] int tmp___0 ; [L613] CALL, EXPR isMethaneLevelCritical() [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] return (retValue_acc); [L613] RET, EXPR isMethaneLevelCritical() [L613] tmp = isMethaneLevelCritical() [L615] COND TRUE \read(tmp) [L617] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L617] RET, EXPR isPumpRunning() [L617] tmp___0 = isPumpRunning() [L619] COND TRUE \read(tmp___0) [L621] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 974 SDtfs, 1400 SDslu, 897 SDs, 0 SdLazy, 3838 SolverSat, 840 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 167 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=791occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 351 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 22.7s InterpolantComputationTime, 576 NumberOfCodeBlocks, 576 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 143126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...