/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_spec5_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:49:11,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:49:11,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:49:11,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:49:11,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:49:11,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:49:11,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:49:11,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:49:11,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:49:11,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:49:11,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:49:11,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:49:11,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:49:11,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:49:11,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:49:11,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:49:11,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:49:11,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:49:11,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:49:11,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:49:11,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:49:11,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:49:11,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:49:11,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:49:11,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:49:11,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:49:11,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:49:11,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:49:11,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:49:11,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:49:11,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:49:11,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:49:11,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:49:11,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:49:11,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:49:11,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:49:11,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:49:11,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:49:11,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:49:11,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:49:11,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:49:11,187 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 08:49:11,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:49:11,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:49:11,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:49:11,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:49:11,216 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:49:11,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:49:11,217 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:49:11,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:49:11,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:49:11,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:49:11,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:49:11,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:49:11,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:49:11,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:49:11,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:49:11,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:49:11,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:49:11,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:49:11,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:49:11,219 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:49:11,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:49:11,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:49:11,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:49:11,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:49:11,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:49:11,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:49:11,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:49:11,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:49:11,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:49:11,221 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:49:11,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:49:11,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:49:11,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:49:11,721 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:49:11,722 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:49:11,723 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-09-25 08:49:11,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/926281f34/9f18fde7edfa417ca00459861467dd82/FLAG1c302f7ba [2020-09-25 08:49:12,364 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:49:12,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-09-25 08:49:12,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/926281f34/9f18fde7edfa417ca00459861467dd82/FLAG1c302f7ba [2020-09-25 08:49:12,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/926281f34/9f18fde7edfa417ca00459861467dd82 [2020-09-25 08:49:12,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:49:12,673 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:49:12,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:49:12,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:49:12,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:49:12,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:49:12" (1/1) ... [2020-09-25 08:49:12,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b481d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:12, skipping insertion in model container [2020-09-25 08:49:12,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:49:12" (1/1) ... [2020-09-25 08:49:12,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:49:12,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:49:13,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:49:13,315 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:49:13,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:49:13,434 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:49:13,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13 WrapperNode [2020-09-25 08:49:13,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:49:13,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:49:13,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:49:13,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:49:13,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (1/1) ... [2020-09-25 08:49:13,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (1/1) ... [2020-09-25 08:49:13,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (1/1) ... [2020-09-25 08:49:13,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (1/1) ... [2020-09-25 08:49:13,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (1/1) ... [2020-09-25 08:49:13,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (1/1) ... [2020-09-25 08:49:13,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (1/1) ... [2020-09-25 08:49:13,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:49:13,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:49:13,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:49:13,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:49:13,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (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 08:49:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:49:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:49:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:49:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:49:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:49:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:49:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:49:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:49:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:49:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:49:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:49:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:49:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:49:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:49:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:49:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:49:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:49:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:49:13,616 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:49:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:49:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:49:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:49:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:49:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:49:13,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:49:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:49:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:49:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:49:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:49:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:49:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:49:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:49:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:49:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 08:49:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 08:49:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 08:49:13,619 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:49:13,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:49:13,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:49:13,620 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:49:13,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:49:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:49:13,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:49:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:49:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:49:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:49:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:49:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:49:13,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:49:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:49:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:49:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:49:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:49:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:49:13,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:49:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:49:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:49:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:49:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:49:13,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:49:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:49:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:49:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:49:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:49:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:49:13,624 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:49:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:49:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:49:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 08:49:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:49:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:49:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:49:13,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:49:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:49:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:49:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:49:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:49:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:49:13,626 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:49:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:49:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:49:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:49:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:49:13,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 08:49:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 08:49:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:49:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:49:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:49:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:49:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:49:13,628 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:49:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:49:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:49:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:49:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:49:13,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:49:14,825 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:49:14,825 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:49:14,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:49:14 BoogieIcfgContainer [2020-09-25 08:49:14,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:49:14,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:49:14,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:49:14,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:49:14,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:49:12" (1/3) ... [2020-09-25 08:49:14,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d974925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:49:14, skipping insertion in model container [2020-09-25 08:49:14,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:49:13" (2/3) ... [2020-09-25 08:49:14,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d974925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:49:14, skipping insertion in model container [2020-09-25 08:49:14,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:49:14" (3/3) ... [2020-09-25 08:49:14,845 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2020-09-25 08:49:14,857 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:49:14,869 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:49:14,894 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:49:14,930 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:49:14,930 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:49:14,930 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:49:14,931 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:49:14,931 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:49:14,931 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:49:14,931 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:49:14,931 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:49:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 08:49:14,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 08:49:14,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:49:14,984 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:49:14,985 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:49:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:49:14,993 INFO L82 PathProgramCache]: Analyzing trace with hash 298100152, now seen corresponding path program 1 times [2020-09-25 08:49:15,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:49:15,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440610506] [2020-09-25 08:49:15,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:49:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:15,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:15,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:17,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:17,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:20,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:20,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 08:49:20,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:49:20,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 08:49:20,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:20,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:20,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:49:20,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:20,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-09-25 08:49:21,075 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:49:21,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:49:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:49:21,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 08:49:21,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:49:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:21,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:21,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:21,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:49:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:21,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:21,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:21,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:49:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:21,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:49:21,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:49:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:21,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:21,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:21,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:49:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:49:21,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:21,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:21,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:49:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:49:21,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:49:21,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:49:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:49:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:21,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:21,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 08:49:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:21,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:21,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:49:21,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:49:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:21,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:21,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:21,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:21,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:21,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:21,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:49:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:21,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:49:21,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440610506] [2020-09-25 08:49:21,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:49:21,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:49:21,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469382060] [2020-09-25 08:49:21,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:49:21,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:49:21,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:49:21,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:49:21,488 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 4 states. [2020-09-25 08:49:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:49:23,136 INFO L93 Difference]: Finished difference Result 504 states and 587 transitions. [2020-09-25 08:49:23,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:49:23,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 08:49:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:49:23,161 INFO L225 Difference]: With dead ends: 504 [2020-09-25 08:49:23,162 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 08:49:23,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:49:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 08:49:23,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 271. [2020-09-25 08:49:23,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-25 08:49:23,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2020-09-25 08:49:23,343 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 160 [2020-09-25 08:49:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:49:23,346 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2020-09-25 08:49:23,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:49:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2020-09-25 08:49:23,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:49:23,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:49:23,360 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:49:23,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:49:23,361 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:49:23,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:49:23,361 INFO L82 PathProgramCache]: Analyzing trace with hash 716005465, now seen corresponding path program 1 times [2020-09-25 08:49:23,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:49:23,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633805247] [2020-09-25 08:49:23,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:49:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:23,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:23,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:25,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:26,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:27,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:28,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:28,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 08:49:28,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:49:28,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 08:49:28,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:28,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:28,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:49:28,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:49:28,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:49:28,880 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:49:28,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:49:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:28,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:49:29,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 08:49:29,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:29,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:29,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:49:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:29,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:29,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:29,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:49:29,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:49:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:29,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:29,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:29,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:49:29,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:49:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:29,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:49:29,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:49:29,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:49:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:29,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:29,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:29,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:29,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:49:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:49:29,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:29,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:29,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:49:29,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:49:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:49:29,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:49:29,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 08:49:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:49:29,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:49:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:29,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:49:29,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:49:29,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 08:49:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:29,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:29,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:49:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:49:29,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:49:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:29,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:29,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:29,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:29,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:29,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:29,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:29,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:29,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:49:29,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:29,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:49:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:49:29,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633805247] [2020-09-25 08:49:29,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:49:29,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:49:29,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514106325] [2020-09-25 08:49:29,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:49:29,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:49:29,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:49:29,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:49:29,247 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand 5 states. [2020-09-25 08:49:30,046 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:49:30,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:49:30,980 INFO L93 Difference]: Finished difference Result 424 states and 473 transitions. [2020-09-25 08:49:30,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:49:30,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 08:49:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:49:30,987 INFO L225 Difference]: With dead ends: 424 [2020-09-25 08:49:30,987 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 08:49:30,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:49:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 08:49:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 261. [2020-09-25 08:49:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 08:49:31,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 280 transitions. [2020-09-25 08:49:31,036 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 280 transitions. Word has length 161 [2020-09-25 08:49:31,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:49:31,037 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 280 transitions. [2020-09-25 08:49:31,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:49:31,037 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 280 transitions. [2020-09-25 08:49:31,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 08:49:31,039 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:49:31,040 INFO L422 BasicCegarLoop]: trace histogram [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 08:49:31,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:49:31,040 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:49:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:49:31,041 INFO L82 PathProgramCache]: Analyzing trace with hash -793678632, now seen corresponding path program 1 times [2020-09-25 08:49:31,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:49:31,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193946747] [2020-09-25 08:49:31,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:49:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:31,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:31,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:32,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 08:49:36,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:49:36,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 08:49:36,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:49:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 08:49:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 08:49:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:49:36,475 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:49:36,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:49:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:49:36,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 08:49:36,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:49:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:49:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:36,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:36,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:36,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:49:36,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:49:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:36,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:49:36,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:49:36,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:49:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:36,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:49:36,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:36,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:49:36,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:49:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:36,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:36,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:49:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:49:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:49:36,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:36,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:49:36,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:49:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:49:36,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:49:36,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:49:36,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:49:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:36,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:49:36,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:36,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:36,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:49:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:36,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:36,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:49:36,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:36,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:49:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:36,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:36,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:36,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:36,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:36,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:36,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:49:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 08:49:36,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193946747] [2020-09-25 08:49:36,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:49:36,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:49:36,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258061598] [2020-09-25 08:49:36,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:49:36,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:49:36,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:49:36,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:49:36,899 INFO L87 Difference]: Start difference. First operand 261 states and 280 transitions. Second operand 5 states. [2020-09-25 08:49:37,376 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:49:39,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:49:39,038 INFO L93 Difference]: Finished difference Result 607 states and 684 transitions. [2020-09-25 08:49:39,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:49:39,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-25 08:49:39,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:49:39,044 INFO L225 Difference]: With dead ends: 607 [2020-09-25 08:49:39,044 INFO L226 Difference]: Without dead ends: 461 [2020-09-25 08:49:39,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:49:39,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-25 08:49:39,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 395. [2020-09-25 08:49:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-25 08:49:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 432 transitions. [2020-09-25 08:49:39,114 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 432 transitions. Word has length 170 [2020-09-25 08:49:39,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:49:39,115 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 432 transitions. [2020-09-25 08:49:39,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:49:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 432 transitions. [2020-09-25 08:49:39,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 08:49:39,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:49:39,118 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:49:39,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:49:39,119 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:49:39,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:49:39,119 INFO L82 PathProgramCache]: Analyzing trace with hash 671497531, now seen corresponding path program 1 times [2020-09-25 08:49:39,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:49:39,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97848661] [2020-09-25 08:49:39,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:49:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:39,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:39,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:40,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:41,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:41,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 08:49:44,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:49:44,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:49:44,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:49:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 08:49:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 08:49:44,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:49:44,535 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:49:44,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:49:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:49:44,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 08:49:44,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:44,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:49:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:44,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:44,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:49:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:44,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:49:44,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:44,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:49:44,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:49:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:44,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:49:44,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:44,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:44,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:49:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:44,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:44,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:44,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:49:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:49:44,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:49:44,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:49:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:49:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:49:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 08:49:44,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:49:44,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:49:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:49:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:49:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:44,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:49:44,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:49:44,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:49:44,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:49:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:49:44,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:49:44,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:49:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:49:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:49:44,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:49:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:49:44,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:49:44,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:49:44,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 08:49:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:44,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:49:44,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:44,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:49:44,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:49:44,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 08:49:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:44,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:44,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:49:44,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:49:44,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:49:44,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:49:44,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:49:44,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:49:44,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:49:44,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:49:44,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:49:44,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:49:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 08:49:44,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97848661] [2020-09-25 08:49:44,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:49:44,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 08:49:44,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189989669] [2020-09-25 08:49:44,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 08:49:44,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:49:44,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 08:49:44,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:49:44,999 INFO L87 Difference]: Start difference. First operand 395 states and 432 transitions. Second operand 11 states. [2020-09-25 08:49:46,105 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:49:46,441 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:49:46,756 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:49:47,124 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:49:47,918 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 08:49:48,239 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:49:49,512 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 08:49:49,850 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:49:50,458 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 08:49:50,799 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:49:52,346 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:49:52,698 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:49:53,019 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:49:53,353 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:49:54,375 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 08:49:54,756 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:49:55,392 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:49:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:49:56,431 INFO L93 Difference]: Finished difference Result 1435 states and 1820 transitions. [2020-09-25 08:49:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 08:49:56,435 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2020-09-25 08:49:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:49:56,460 INFO L225 Difference]: With dead ends: 1435 [2020-09-25 08:49:56,460 INFO L226 Difference]: Without dead ends: 1155 [2020-09-25 08:49:56,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=380, Invalid=1342, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 08:49:56,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2020-09-25 08:49:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 816. [2020-09-25 08:49:56,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2020-09-25 08:49:56,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 946 transitions. [2020-09-25 08:49:56,630 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 946 transitions. Word has length 178 [2020-09-25 08:49:56,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:49:56,631 INFO L479 AbstractCegarLoop]: Abstraction has 816 states and 946 transitions. [2020-09-25 08:49:56,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 08:49:56,631 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 946 transitions. [2020-09-25 08:49:56,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 08:49:56,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:49:56,635 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:49:56,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:49:56,635 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:49:56,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:49:56,636 INFO L82 PathProgramCache]: Analyzing trace with hash 196837440, now seen corresponding path program 1 times [2020-09-25 08:49:56,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:49:56,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953115292] [2020-09-25 08:49:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:49:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:49:56,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:56,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:57,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:49:59,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking...