/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:06:52,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:06:52,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:06:52,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:06:52,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:06:52,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:06:52,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:06:52,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:06:52,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:06:52,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:06:52,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:06:52,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:06:52,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:06:52,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:06:52,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:06:52,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:06:52,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:06:52,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:06:52,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:06:52,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:06:52,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:06:52,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:06:52,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:06:52,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:06:52,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:06:52,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:06:52,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:06:52,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:06:52,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:06:52,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:06:52,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:06:52,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:06:52,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:06:52,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:06:52,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:06:52,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:06:52,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:06:52,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:06:52,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:06:52,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:06:52,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:06:52,243 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 04:06:52,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:06:52,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:06:52,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:06:52,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:06:52,297 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:06:52,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:06:52,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:06:52,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:06:52,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:06:52,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:06:52,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:06:52,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:06:52,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:06:52,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:06:52,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:06:52,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:06:52,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:06:52,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:06:52,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:06:52,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:06:52,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:06:52,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:06:52,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:06:52,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:06:52,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:06:52,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:06:52,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:06:52,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:06:52,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:06:52,304 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:06:52,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:06:52,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:06:52,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:06:52,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:06:52,800 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:06:52,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-09-25 04:06:52,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48f68d388/86718b1d9a9e403b9822278915b70134/FLAG71557c3a3 [2020-09-25 04:06:53,539 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:06:53,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-09-25 04:06:53,556 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48f68d388/86718b1d9a9e403b9822278915b70134/FLAG71557c3a3 [2020-09-25 04:06:53,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48f68d388/86718b1d9a9e403b9822278915b70134 [2020-09-25 04:06:53,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:06:53,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:06:53,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:06:53,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:06:53,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:06:53,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:06:53" (1/1) ... [2020-09-25 04:06:53,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf15244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:53, skipping insertion in model container [2020-09-25 04:06:53,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:06:53" (1/1) ... [2020-09-25 04:06:53,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:06:53,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:06:54,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:06:54,312 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:06:54,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:06:54,534 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:06:54,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54 WrapperNode [2020-09-25 04:06:54,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:06:54,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:06:54,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:06:54,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:06:54,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (1/1) ... [2020-09-25 04:06:54,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (1/1) ... [2020-09-25 04:06:54,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (1/1) ... [2020-09-25 04:06:54,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (1/1) ... [2020-09-25 04:06:54,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (1/1) ... [2020-09-25 04:06:54,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (1/1) ... [2020-09-25 04:06:54,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (1/1) ... [2020-09-25 04:06:54,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:06:54,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:06:54,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:06:54,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:06:54,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (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 04:06:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:06:54,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:06:54,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:06:54,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:06:54,716 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:06:54,716 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:06:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:06:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:06:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:06:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 04:06:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:06:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:06:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:06:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:06:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:06:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:06:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:06:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:06:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:06:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:06:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:06:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:06:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:06:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:06:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 04:06:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:06:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 04:06:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:06:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:06:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:06:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:06:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:06:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 04:06:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:06:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:06:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:06:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:06:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:06:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:06:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:06:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:06:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:06:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:06:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:06:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:06:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:06:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:06:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:06:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:06:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 04:06:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:06:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:06:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:06:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:06:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:06:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:06:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:06:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:06:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:06:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:06:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:06:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:06:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:06:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:06:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:06:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:06:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:06:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:06:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:06:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:06:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:06:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:06:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:06:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:06:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:06:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:06:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:06:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:06:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:06:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:06:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 04:06:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 04:06:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:06:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 04:06:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:06:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:06:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:06:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:06:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:06:56,033 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:06:56,033 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:06:56,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:06:56 BoogieIcfgContainer [2020-09-25 04:06:56,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:06:56,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:06:56,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:06:56,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:06:56,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:06:53" (1/3) ... [2020-09-25 04:06:56,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121552f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:06:56, skipping insertion in model container [2020-09-25 04:06:56,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:06:54" (2/3) ... [2020-09-25 04:06:56,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121552f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:06:56, skipping insertion in model container [2020-09-25 04:06:56,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:06:56" (3/3) ... [2020-09-25 04:06:56,052 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-09-25 04:06:56,065 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:06:56,076 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:06:56,102 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:06:56,140 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:06:56,140 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:06:56,141 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:06:56,141 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:06:56,141 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:06:56,141 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:06:56,141 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:06:56,142 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:06:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-09-25 04:06:56,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 04:06:56,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:06:56,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:06:56,197 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:06:56,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:06:56,206 INFO L82 PathProgramCache]: Analyzing trace with hash -2091214271, now seen corresponding path program 1 times [2020-09-25 04:06:56,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:06:56,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763568876] [2020-09-25 04:06:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:06:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:06:56,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:56,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:06:58,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:01,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:01,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:07:01,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:07:01,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:07:01,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:01,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:01,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:07:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:01,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:07:01,999 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:02,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:02,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:02,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:02,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:02,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 04:07:02,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:02,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:02,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:02,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:02,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:02,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:02,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:02,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:02,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:02,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:02,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:02,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:02,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:02,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:02,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:02,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:02,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:02,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:02,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:02,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:02,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:02,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:02,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:02,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:02,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:02,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:02,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:02,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:02,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:02,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:02,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:02,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:02,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:02,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:02,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:02,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:02,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:02,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:02,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:02,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:02,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:02,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:02,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:07:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:02,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:02,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:02,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:02,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:02,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:02,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:02,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:02,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:02,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:02,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:02,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:02,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:02,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:02,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:02,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:02,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:02,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:02,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:02,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:02,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:02,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:07:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:02,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:02,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:02,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:02,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:02,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:02,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:02,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:02,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:02,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:02,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:07:02,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763568876] [2020-09-25 04:07:02,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:02,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:07:02,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129680884] [2020-09-25 04:07:02,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:07:02,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:02,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:07:02,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:07:02,375 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 3 states. [2020-09-25 04:07:04,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:04,294 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions. [2020-09-25 04:07:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:07:04,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 04:07:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:04,329 INFO L225 Difference]: With dead ends: 486 [2020-09-25 04:07:04,330 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 04:07:04,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:07:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 04:07:04,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-25 04:07:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 04:07:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-09-25 04:07:04,480 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153 [2020-09-25 04:07:04,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:04,481 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-09-25 04:07:04,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:07:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-09-25 04:07:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 04:07:04,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:04,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:04,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:07:04,487 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:04,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:04,488 INFO L82 PathProgramCache]: Analyzing trace with hash 770712739, now seen corresponding path program 1 times [2020-09-25 04:07:04,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:04,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052634746] [2020-09-25 04:07:04,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:04,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:04,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:06,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:09,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:09,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:07:09,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:07:09,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:07:09,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:09,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:09,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:09,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:07:09,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:07:09,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:09,846 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:09,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:09,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:09,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:09,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:09,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 04:07:09,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:09,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:09,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:09,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:10,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:10,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:10,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:10,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:10,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:10,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:10,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:10,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:10,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:10,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:10,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:10,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:10,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:10,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:10,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:10,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:10,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:10,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:10,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:10,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:10,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:10,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:10,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:10,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:10,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:10,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:10,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:10,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:10,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:10,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:10,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:10,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:10,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:10,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:10,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:10,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:10,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:10,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:10,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:10,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:10,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:07:10,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:10,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:10,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:10,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:10,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 04:07:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:10,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:10,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:10,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:10,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:10,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:10,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:10,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:10,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:10,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:10,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:07:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:10,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:10,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:10,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:10,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:10,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:10,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:10,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:10,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:10,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:10,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:10,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:07:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:10,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:10,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:10,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:10,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:10,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:10,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:10,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:10,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 04:07:10,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:07:10,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052634746] [2020-09-25 04:07:10,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:10,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:07:10,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616005250] [2020-09-25 04:07:10,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:07:10,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:10,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:07:10,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:07:10,120 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 4 states. [2020-09-25 04:07:10,811 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:07:11,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:11,706 INFO L93 Difference]: Finished difference Result 399 states and 451 transitions. [2020-09-25 04:07:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:07:11,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 04:07:11,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:11,713 INFO L225 Difference]: With dead ends: 399 [2020-09-25 04:07:11,713 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 04:07:11,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:07:11,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 04:07:11,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-25 04:07:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 04:07:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-25 04:07:11,779 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 154 [2020-09-25 04:07:11,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:11,780 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-25 04:07:11,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:07:11,780 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-25 04:07:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 04:07:11,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:11,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:07:11,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:07:11,783 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:11,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:11,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1092236248, now seen corresponding path program 1 times [2020-09-25 04:07:11,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:11,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615154726] [2020-09-25 04:07:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:11,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:12,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:14,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:14,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 04:07:14,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:07:14,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2904 [2020-09-25 04:07:14,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:14,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:14,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:14,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:07:14,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:07:14,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:07:14,996 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:14,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:15,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:07:15,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:15,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:15,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:15,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:15,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:15,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:15,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:07:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:07:15,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:15,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:15,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:15,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:07:15,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:07:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:15,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:15,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:15,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 04:07:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:15,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:15,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:15,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 04:07:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:15,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:15,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:15,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:15,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:15,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:15,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:15,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:15,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:15,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:15,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:15,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:07:15,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615154726] [2020-09-25 04:07:15,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:15,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:07:15,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695192363] [2020-09-25 04:07:15,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:07:15,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:15,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:07:15,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:07:15,300 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 5 states. [2020-09-25 04:07:15,766 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:16,829 INFO L93 Difference]: Finished difference Result 445 states and 513 transitions. [2020-09-25 04:07:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:07:16,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 04:07:16,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:16,833 INFO L225 Difference]: With dead ends: 445 [2020-09-25 04:07:16,833 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 04:07:16,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:07:16,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 04:07:16,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-25 04:07:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 04:07:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2020-09-25 04:07:16,873 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 167 [2020-09-25 04:07:16,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:16,874 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2020-09-25 04:07:16,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:07:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2020-09-25 04:07:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 04:07:16,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:16,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:07:16,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:07:16,878 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:16,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:16,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1656489563, now seen corresponding path program 1 times [2020-09-25 04:07:16,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:16,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100100875] [2020-09-25 04:07:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:16,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:18,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:18,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 04:07:18,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:18,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1689 [2020-09-25 04:07:18,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:18,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:18,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:07:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 04:07:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 04:07:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:18,970 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:18,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:19,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 04:07:19,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:19,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 04:07:19,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:19,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:19,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:19,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:19,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:19,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:19,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:19,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:07:19,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:19,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:19,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:19,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:19,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:19,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:19,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:07:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:07:19,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:19,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:07:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 04:07:19,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:07:19,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:07:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:07:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:07:19,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:19,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:07:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:19,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:19,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 04:07:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:19,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:19,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:19,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 04:07:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:19,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:07:19,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:07:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 04:07:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:19,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:19,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:19,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:19,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:19,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:07:19,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:19,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:19,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:19,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:19,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:07:19,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100100875] [2020-09-25 04:07:19,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:19,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:07:19,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993050905] [2020-09-25 04:07:19,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:07:19,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:19,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:07:19,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:07:19,663 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 11 states. [2020-09-25 04:07:20,410 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:22,949 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:07:23,347 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:07:23,670 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:07:23,984 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:07:24,265 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:07:24,775 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:25,073 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:07:25,429 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:07:26,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:26,030 INFO L93 Difference]: Finished difference Result 697 states and 868 transitions. [2020-09-25 04:07:26,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 04:07:26,031 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-09-25 04:07:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:26,038 INFO L225 Difference]: With dead ends: 697 [2020-09-25 04:07:26,038 INFO L226 Difference]: Without dead ends: 558 [2020-09-25 04:07:26,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 04:07:26,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-25 04:07:26,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 385. [2020-09-25 04:07:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-25 04:07:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 428 transitions. [2020-09-25 04:07:26,106 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 428 transitions. Word has length 180 [2020-09-25 04:07:26,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:26,106 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 428 transitions. [2020-09-25 04:07:26,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:07:26,107 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 428 transitions. [2020-09-25 04:07:26,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 04:07:26,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:26,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:07:26,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:07:26,110 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:26,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:26,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1994642045, now seen corresponding path program 1 times [2020-09-25 04:07:26,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:26,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360655397] [2020-09-25 04:07:26,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:07:26,171 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:07:26,171 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:07:26,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:07:26,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:07:26 BoogieIcfgContainer [2020-09-25 04:07:26,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:07:26,206 INFO L168 Benchmark]: Toolchain (without parser) took 32388.23 ms. Allocated memory was 141.0 MB in the beginning and 649.1 MB in the end (delta: 508.0 MB). Free memory was 103.4 MB in the beginning and 490.6 MB in the end (delta: -387.2 MB). Peak memory consumption was 120.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:26,207 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-25 04:07:26,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.53 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 174.3 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:26,208 INFO L168 Benchmark]: Boogie Preprocessor took 96.05 ms. Allocated memory is still 205.0 MB. Free memory was 174.3 MB in the beginning and 170.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:26,209 INFO L168 Benchmark]: RCFGBuilder took 1408.85 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 170.4 MB in the beginning and 173.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:26,210 INFO L168 Benchmark]: TraceAbstraction took 30161.20 ms. Allocated memory was 236.5 MB in the beginning and 649.1 MB in the end (delta: 412.6 MB). Free memory was 173.3 MB in the beginning and 490.6 MB in the end (delta: -317.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:07:26,214 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.53 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 174.3 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.05 ms. Allocated memory is still 205.0 MB. Free memory was 174.3 MB in the beginning and 170.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1408.85 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 170.4 MB in the beginning and 173.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30161.20 ms. Allocated memory was 236.5 MB in the beginning and 649.1 MB in the end (delta: 412.6 MB). Free memory was 173.3 MB in the beginning and 490.6 MB in the end (delta: -317.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 883]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L136] int cleanupTimeShifts = 4; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L675] int pumpRunning = 0; [L676] int systemActive = 1; [L215] int retValue_acc ; [L216] int tmp ; [L220] FCALL select_helpers() [L221] FCALL select_features() [L222] CALL, EXPR valid_product() [L914] int retValue_acc ; [L917] retValue_acc = 1 [L918] return (retValue_acc); [L222] RET, EXPR valid_product() [L222] tmp = valid_product() [L224] COND TRUE \read(tmp) [L226] FCALL setup() [L227] CALL runTest() [L206] CALL test() [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) [L627] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L627] RET waterRise() [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND TRUE \read(tmp___2) [L647] CALL startSystem() [L874] systemActive = 1 [L647] RET startSystem() [L660] CALL timeShift() [L683] COND FALSE !(\read(pumpRunning)) [L690] COND TRUE \read(systemActive) [L692] CALL processEnvironment() [L738] int tmp ; [L741] COND FALSE !(\read(pumpRunning)) [L756] CALL processEnvironment__wrappee__methaneQuery() [L712] int tmp ; [L715] COND FALSE !(\read(pumpRunning)) [L730] FCALL processEnvironment__wrappee__base() [L756] RET processEnvironment__wrappee__methaneQuery() [L692] RET processEnvironment() [L698] CALL __utac_acc__Specification3_spec__1() [L924] int tmp ; [L925] int tmp___0 ; [L926] int tmp___1 ; [L930] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L930] RET, EXPR isMethaneLevelCritical() [L930] tmp = isMethaneLevelCritical() [L932] COND FALSE !(\read(tmp)) [L936] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L936] RET, EXPR getWaterLevel() [L936] tmp___0 = getWaterLevel() [L938] COND TRUE tmp___0 == 2 [L940] CALL, EXPR isPumpRunning() [L807] int retValue_acc ; [L810] retValue_acc = pumpRunning [L811] return (retValue_acc); [L940] RET, EXPR isPumpRunning() [L940] tmp___1 = isPumpRunning() [L942] COND FALSE !(\read(tmp___1)) [L946] CALL __automaton_fail() [L883] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 953 SDtfs, 1893 SDslu, 891 SDs, 0 SdLazy, 2231 SolverSat, 720 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 307 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.3s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 650 ConstructedInterpolants, 0 QuantifiedInterpolants, 260063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...