/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:15:36,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:15:36,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:15:36,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:15:36,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:15:36,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:15:36,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:15:36,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:15:36,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:15:36,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:15:36,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:15:36,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:15:36,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:15:36,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:15:36,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:15:36,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:15:36,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:15:36,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:15:36,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:15:36,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:15:36,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:15:36,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:15:36,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:15:36,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:15:36,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:15:36,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:15:36,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:15:36,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:15:36,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:15:36,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:15:36,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:15:36,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:15:36,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:15:36,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:15:36,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:15:36,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:15:36,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:15:36,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:15:36,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:15:36,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:15:36,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:15:36,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:15:36,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:15:36,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:15:36,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:15:36,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:15:36,663 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:15:36,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:15:36,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:15:36,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:15:36,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:15:36,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:15:36,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:15:36,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:15:36,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:15:36,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:15:36,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:15:36,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:15:36,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:15:36,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:15:36,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:15:36,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:15:36,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:15:36,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:15:36,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:15:36,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:15:36,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:15:36,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:15:36,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:15:36,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:15:36,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:15:36,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:15:37,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:15:37,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:15:37,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:15:37,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:15:37,228 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:15:37,229 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product24.cil.c [2020-09-25 14:15:37,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf15c9d28/9095624a986d445ca92786515e7eadfa/FLAG35cf9b79a [2020-09-25 14:15:37,971 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:15:37,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product24.cil.c [2020-09-25 14:15:37,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf15c9d28/9095624a986d445ca92786515e7eadfa/FLAG35cf9b79a [2020-09-25 14:15:38,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf15c9d28/9095624a986d445ca92786515e7eadfa [2020-09-25 14:15:38,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:15:38,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:15:38,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:15:38,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:15:38,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:15:38,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:15:38" (1/1) ... [2020-09-25 14:15:38,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e65116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:38, skipping insertion in model container [2020-09-25 14:15:38,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:15:38" (1/1) ... [2020-09-25 14:15:38,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:15:38,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:15:38,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:15:38,934 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:15:39,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:15:39,051 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:15:39,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39 WrapperNode [2020-09-25 14:15:39,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:15:39,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:15:39,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:15:39,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:15:39,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (1/1) ... [2020-09-25 14:15:39,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (1/1) ... [2020-09-25 14:15:39,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (1/1) ... [2020-09-25 14:15:39,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (1/1) ... [2020-09-25 14:15:39,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (1/1) ... [2020-09-25 14:15:39,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (1/1) ... [2020-09-25 14:15:39,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (1/1) ... [2020-09-25 14:15:39,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:15:39,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:15:39,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:15:39,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:15:39,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:15:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:15:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:15:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:15:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:15:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:15:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:15:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:15:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:15:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:15:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:15:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:15:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 14:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:15:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 14:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:15:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:15:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:15:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:15:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:15:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:15:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:15:40,349 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:15:40,349 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:15:40,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:15:40 BoogieIcfgContainer [2020-09-25 14:15:40,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:15:40,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:15:40,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:15:40,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:15:40,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:15:38" (1/3) ... [2020-09-25 14:15:40,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6912dff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:15:40, skipping insertion in model container [2020-09-25 14:15:40,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:39" (2/3) ... [2020-09-25 14:15:40,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6912dff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:15:40, skipping insertion in model container [2020-09-25 14:15:40,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:15:40" (3/3) ... [2020-09-25 14:15:40,366 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product24.cil.c [2020-09-25 14:15:40,378 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:15:40,389 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:15:40,412 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:15:40,445 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:15:40,445 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:15:40,445 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:15:40,446 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:15:40,446 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:15:40,446 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:15:40,446 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:15:40,446 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:15:40,475 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 14:15:40,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 14:15:40,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:15:40,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:15:40,497 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:15:40,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:15:40,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1511101024, now seen corresponding path program 1 times [2020-09-25 14:15:40,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:15:40,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571030902] [2020-09-25 14:15:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:15:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:41,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:41,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:42,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:43,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:44,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:45,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:45,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 14:15:45,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:15:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-09-25 14:15:45,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:45,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:15:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:15:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 14:15:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 14:15:46,474 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:15:46,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:15:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:46,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:46,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:46,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:15:46,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:46,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-25 14:15:46,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:46,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:46,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:15:46,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:46,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:15:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:46,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:46,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:46,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:15:46,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:46,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:15:46,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:46,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:15:46,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:46,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:15:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:46,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:46,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:46,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:15:46,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:46,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:15:46,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:46,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:46,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:46,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:46,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:15:46,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:46,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:15:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:46,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:46,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:46,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:15:46,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:46,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:15:46,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:46,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:46,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:46,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:46,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:15:46,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:46,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:15:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:47,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:47,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:47,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:15:47,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:47,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:15:47,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:47,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:15:47,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:15:47,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:15:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:47,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:47,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:47,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:15:47,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:47,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:15:47,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:47,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:47,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:47,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:47,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:15:47,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:47,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:15:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:47,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:47,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:47,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:15:47,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:15:47,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:47,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:47,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:15:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:15:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:15:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:47,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:15:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:47,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:47,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:47,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:15:47,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:47,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:15:47,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:47,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:15:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:15:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:15:47,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:15:47,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571030902] [2020-09-25 14:15:47,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:15:47,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:15:47,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299019800] [2020-09-25 14:15:47,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:15:47,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:15:47,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:15:47,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:15:47,168 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 5 states. [2020-09-25 14:15:47,817 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:15:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:15:50,059 INFO L93 Difference]: Finished difference Result 664 states and 806 transitions. [2020-09-25 14:15:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:15:50,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 14:15:50,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:15:50,084 INFO L225 Difference]: With dead ends: 664 [2020-09-25 14:15:50,084 INFO L226 Difference]: Without dead ends: 474 [2020-09-25 14:15:50,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:15:50,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-25 14:15:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 401. [2020-09-25 14:15:50,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-09-25 14:15:50,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 452 transitions. [2020-09-25 14:15:50,248 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 452 transitions. Word has length 148 [2020-09-25 14:15:50,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:15:50,249 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 452 transitions. [2020-09-25 14:15:50,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:15:50,250 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 452 transitions. [2020-09-25 14:15:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 14:15:50,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:15:50,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:15:50,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:15:50,256 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:15:50,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:15:50,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1846525379, now seen corresponding path program 1 times [2020-09-25 14:15:50,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:15:50,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502653996] [2020-09-25 14:15:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:15:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:50,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:50,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:51,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:51,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:51,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:52,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:55,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:55,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 14:15:55,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:15:55,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:15:55,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:55,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:15:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 14:15:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-25 14:15:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:55,627 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:15:55,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:15:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:55,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:55,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:55,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:15:55,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 14:15:55,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:55,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 14:15:55,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:55,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:15:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:55,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:55,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:55,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:15:55,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:15:55,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:55,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:15:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:15:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:15:56,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:15:56,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:15:56,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:15:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:15:56,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:15:56,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:56,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:56,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:15:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:15:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:15:56,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:15:56,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:15:56,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:15:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:15:56,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:15:56,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:56,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:15:56,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:15:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:15:56,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:15:56,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:15:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:56,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:15:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:15:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:15:56,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:15:56,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:15:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:15:56,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:15:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:15:56,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:15:56,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:15:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:15:56,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:15:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:15:56,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:15:56,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:15:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:15:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:15:56,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 14:15:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:15:56,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:15:56,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:15:56,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:15:56,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:15:56,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:15:56,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:15:56,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:15:56,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:15:56,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:15:56,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:15:56,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:15:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:15:56,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502653996] [2020-09-25 14:15:56,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:15:56,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:15:56,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563448727] [2020-09-25 14:15:56,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:15:56,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:15:56,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:15:56,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:15:56,165 INFO L87 Difference]: Start difference. First operand 401 states and 452 transitions. Second operand 10 states. [2020-09-25 14:15:56,747 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:15:57,838 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:15:58,183 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:15:59,237 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:15:59,580 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:15:59,945 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:16:00,321 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:16:00,605 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:16:01,092 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:16:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:02,587 INFO L93 Difference]: Finished difference Result 1179 states and 1490 transitions. [2020-09-25 14:16:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 14:16:02,588 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-09-25 14:16:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:02,599 INFO L225 Difference]: With dead ends: 1179 [2020-09-25 14:16:02,599 INFO L226 Difference]: Without dead ends: 858 [2020-09-25 14:16:02,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 14:16:02,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-09-25 14:16:02,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 634. [2020-09-25 14:16:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-25 14:16:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 725 transitions. [2020-09-25 14:16:02,730 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 725 transitions. Word has length 162 [2020-09-25 14:16:02,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:02,730 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 725 transitions. [2020-09-25 14:16:02,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:16:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 725 transitions. [2020-09-25 14:16:02,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 14:16:02,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:02,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:02,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:16:02,735 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:02,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:02,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1033981590, now seen corresponding path program 1 times [2020-09-25 14:16:02,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:02,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588592120] [2020-09-25 14:16:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:02,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:03,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:03,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:04,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:07,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:07,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 14:16:07,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:16:07,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 14:16:07,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:07,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:07,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:16:07,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 14:16:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 14:16:07,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:08,189 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:08,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:08,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 14:16:08,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:08,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:08,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:08,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:08,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:08,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:08,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:08,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:08,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:08,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:08,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:08,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:08,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:08,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:08,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:08,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:08,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:08,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:08,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:08,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 14:16:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:08,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:16:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:16:08,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:16:08,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:16:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:08,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 14:16:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:16:08,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:08,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:08,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:16:08,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:08,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 14:16:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:08,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:08,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:08,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:08,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:16:08,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 14:16:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:08,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:08,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:08,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:08,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:08,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:16:08,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:08,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:08,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:08,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:08,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:16:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:16:08,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588592120] [2020-09-25 14:16:08,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:16:08,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:16:08,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281335261] [2020-09-25 14:16:08,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:16:08,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:08,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:16:08,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:16:08,512 INFO L87 Difference]: Start difference. First operand 634 states and 725 transitions. Second operand 7 states. [2020-09-25 14:16:09,139 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:16:12,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:12,855 INFO L93 Difference]: Finished difference Result 1621 states and 2107 transitions. [2020-09-25 14:16:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 14:16:12,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-25 14:16:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:12,875 INFO L225 Difference]: With dead ends: 1621 [2020-09-25 14:16:12,876 INFO L226 Difference]: Without dead ends: 1618 [2020-09-25 14:16:12,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:16:12,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2020-09-25 14:16:13,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 927. [2020-09-25 14:16:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-09-25 14:16:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1080 transitions. [2020-09-25 14:16:13,037 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1080 transitions. Word has length 172 [2020-09-25 14:16:13,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:13,038 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1080 transitions. [2020-09-25 14:16:13,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:16:13,039 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1080 transitions. [2020-09-25 14:16:13,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-25 14:16:13,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:16:13,045 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:16:13,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:16:13,046 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:16:13,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:16:13,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1051626874, now seen corresponding path program 1 times [2020-09-25 14:16:13,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:16:13,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846121952] [2020-09-25 14:16:13,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:16:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:13,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:13,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:13,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:13,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:13,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:14,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:15,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:16,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:16,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-25 14:16:18,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:16:18,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 14:16:18,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 14:16:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:16:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-25 14:16:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,439 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:16:18,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:16:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:16:18,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 14:16:18,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:16:18,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:16:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:18,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:18,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:16:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:18,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:16:18,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:16:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:18,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:16:18,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:16:18,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 14:16:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:16:18,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:18,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:16:18,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 14:16:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:16:18,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:16:18,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:16:18,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 14:16:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:16:18,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:16:18,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:16:18,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 14:16:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:16:18,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:16:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:16:18,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:16:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:16:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:16:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:16:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 14:16:18,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:16:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 14:16:18,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:16:18,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:16:18,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:16:18,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 14:16:18,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:18,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:16:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 14:16:18,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:18,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:18,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:18,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:18,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:18,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:18,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:18,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:18,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:19,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 14:16:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:19,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:19,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:19,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:19,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:16:19,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:16:19,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 14:16:19,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:19,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:19,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:16:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:16:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:16:19,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:19,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:19,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:19,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:19,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 14:16:19,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:19,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 14:16:19,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:19,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:16:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 14:16:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 14:16:19,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:19,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:16:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:19,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:19,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:19,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:19,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:19,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:19,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:19,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:19,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:19,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:16:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:19,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:19,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:19,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:19,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:19,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:16:19,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:19,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:16:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:16:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:16:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:19,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 14:16:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:19,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:19,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:19,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:19,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:19,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:16:19,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:19,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:19,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:19,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:19,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:19,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:19,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-25 14:16:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:16:19,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:16:19,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:16:19,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:16:19,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:16:19,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:16:19,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:16:19,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:16:19,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:16:19,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:16:19,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:16:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:16:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 14:16:19,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846121952] [2020-09-25 14:16:19,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:16:19,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 14:16:19,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370981090] [2020-09-25 14:16:19,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 14:16:19,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:16:19,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 14:16:19,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:16:19,454 INFO L87 Difference]: Start difference. First operand 927 states and 1080 transitions. Second operand 14 states. [2020-09-25 14:16:20,038 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:16:21,622 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:16:21,942 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:16:22,312 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:16:22,622 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:16:22,961 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:16:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:16:23,984 INFO L93 Difference]: Finished difference Result 1435 states and 1789 transitions. [2020-09-25 14:16:23,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 14:16:23,985 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 234 [2020-09-25 14:16:23,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:16:23,986 INFO L225 Difference]: With dead ends: 1435 [2020-09-25 14:16:23,987 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:16:23,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 14:16:23,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:16:23,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:16:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:16:23,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:16:23,992 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2020-09-25 14:16:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:16:23,992 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:16:23,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 14:16:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:16:23,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:16:23,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:16:23,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:16:24,199 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:16:24,392 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:16:24,572 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:16:24,743 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:16:24,908 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:16:25,078 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:16:25,247 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:16:25,407 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:16:25,751 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 14:16:25,917 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:16:26,263 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:16:26,426 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192