/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:41:43,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:41:43,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:41:43,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:41:43,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:41:43,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:41:43,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:41:43,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:41:43,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:41:43,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:41:43,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:41:43,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:41:43,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:41:43,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:41:43,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:41:43,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:41:43,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:41:43,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:41:43,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:41:43,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:41:43,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:41:43,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:41:43,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:41:43,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:41:43,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:41:43,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:41:43,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:41:43,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:41:43,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:41:43,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:41:43,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:41:43,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:41:43,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:41:43,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:41:43,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:41:43,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:41:43,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:41:43,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:41:43,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:41:43,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:41:43,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:41:43,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:41:43,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:41:43,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:41:43,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:41:43,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:41:43,274 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:41:43,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:41:43,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:41:43,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:41:43,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:41:43,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:41:43,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:41:43,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:41:43,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:41:43,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:41:43,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:41:43,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:41:43,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:41:43,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:41:43,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:41:43,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:41:43,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:41:43,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:41:43,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:41:43,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:41:43,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:41:43,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:41:43,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:41:43,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:41:43,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:41:43,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:41:43,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:41:43,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:41:43,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:41:43,770 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:41:43,771 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:41:43,772 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-09-25 08:41:43,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ead6c7a7e/2b4f02a0d5d747e3abab015be2ac467b/FLAG31ded9f9e [2020-09-25 08:41:44,405 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:41:44,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-09-25 08:41:44,434 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ead6c7a7e/2b4f02a0d5d747e3abab015be2ac467b/FLAG31ded9f9e [2020-09-25 08:41:44,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ead6c7a7e/2b4f02a0d5d747e3abab015be2ac467b [2020-09-25 08:41:44,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:41:44,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:41:44,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:41:44,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:41:44,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:41:44,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:41:44" (1/1) ... [2020-09-25 08:41:44,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c06c3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:44, skipping insertion in model container [2020-09-25 08:41:44,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:41:44" (1/1) ... [2020-09-25 08:41:44,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:41:44,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:41:45,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:41:45,327 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:41:45,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:41:45,443 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:41:45,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45 WrapperNode [2020-09-25 08:41:45,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:41:45,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:41:45,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:41:45,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:41:45,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (1/1) ... [2020-09-25 08:41:45,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (1/1) ... [2020-09-25 08:41:45,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (1/1) ... [2020-09-25 08:41:45,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (1/1) ... [2020-09-25 08:41:45,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (1/1) ... [2020-09-25 08:41:45,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (1/1) ... [2020-09-25 08:41:45,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (1/1) ... [2020-09-25 08:41:45,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:41:45,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:41:45,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:41:45,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:41:45,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:41:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:41:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:41:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:41:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:41:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:41:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:41:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:41:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:41:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:41:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:41:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:41:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:41:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:41:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:41:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:41:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:41:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:41:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:41:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:41:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:41:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:41:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:41:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:41:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:41:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:41:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:41:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:41:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:41:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:41:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:41:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:41:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:41:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:41:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:41:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:41:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:41:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:41:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:41:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:41:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:41:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:41:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:41:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:41:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:41:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:41:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:41:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:41:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:41:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:41:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:41:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:41:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:41:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:41:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:41:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:41:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:41:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:41:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:41:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:41:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:41:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:41:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:41:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:41:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:41:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:41:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:41:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:41:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:41:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:41:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:41:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:41:45,659 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:41:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:41:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:41:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:41:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:41:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:41:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:41:45,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:41:45,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:41:45,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:41:45,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:41:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:41:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:41:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:41:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:41:45,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:41:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:41:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:41:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:41:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:41:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:41:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:41:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:41:46,756 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:41:46,757 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:41:46,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:41:46 BoogieIcfgContainer [2020-09-25 08:41:46,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:41:46,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:41:46,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:41:46,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:41:46,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:41:44" (1/3) ... [2020-09-25 08:41:46,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218f93d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:41:46, skipping insertion in model container [2020-09-25 08:41:46,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:45" (2/3) ... [2020-09-25 08:41:46,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218f93d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:41:46, skipping insertion in model container [2020-09-25 08:41:46,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:41:46" (3/3) ... [2020-09-25 08:41:46,775 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-09-25 08:41:46,787 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:41:46,799 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:41:46,822 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:41:46,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:41:46,858 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:41:46,858 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:41:46,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:41:46,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:41:46,858 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:41:46,858 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:41:46,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:41:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-25 08:41:46,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 08:41:46,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:46,912 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 08:41:46,913 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:46,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:46,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times [2020-09-25 08:41:46,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:46,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981179532] [2020-09-25 08:41:46,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:47,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:49,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:52,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:52,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 08:41:52,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:41:52,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 08:41:52,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:52,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:41:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:52,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:41:52,805 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:52,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:52,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:52,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:52,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:41:52,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:52,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 08:41:52,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:52,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:52,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:52,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:41:53,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:41:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:53,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:53,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:53,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:53,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:53,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:53,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:53,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:53,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:41:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:53,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:53,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:53,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:53,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:53,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:53,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:53,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:53,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:53,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:53,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:53,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:53,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:41:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:53,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:53,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:53,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:53,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:53,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:41:53,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:53,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:53,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:53,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:41:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:53,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:53,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:53,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:53,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:53,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:53,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:53,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:53,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:53,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:53,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:41:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:53,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:53,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:53,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:53,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:53,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:53,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:53,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:53,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:53,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:53,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:41:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:53,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:53,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:53,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:53,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:53,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:53,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:53,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:53,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:53,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:53,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:53,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:53,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:41:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:53,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:53,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:53,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:53,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:53,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:41:53,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:53,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:53,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:53,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:53,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:53,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:53,159 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 08:41:53,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981179532] [2020-09-25 08:41:53,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:41:53,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:41:53,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794926469] [2020-09-25 08:41:53,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:41:53,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:41:53,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:41:53,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:41:53,200 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-09-25 08:41:54,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:54,489 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-09-25 08:41:54,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:41:54,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 08:41:54,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:54,512 INFO L225 Difference]: With dead ends: 458 [2020-09-25 08:41:54,512 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 08:41:54,519 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 08:41:54,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 08:41:54,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 08:41:54,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 08:41:54,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-25 08:41:54,623 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-09-25 08:41:54,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:54,624 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-25 08:41:54,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:41:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-25 08:41:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 08:41:54,629 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:54,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:41:54,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:41:54,630 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:54,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:54,631 INFO L82 PathProgramCache]: Analyzing trace with hash 319840535, now seen corresponding path program 1 times [2020-09-25 08:41:54,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:54,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199525912] [2020-09-25 08:41:54,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:54,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:56,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:59,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:59,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:41:59,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:41:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 08:41:59,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:59,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:59,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:59,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:41:59,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:41:59,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:59,986 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:59,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:00,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:00,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:00,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:00,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:00,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 08:42:00,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:00,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:00,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:00,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:00,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:00,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:00,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:00,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:00,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:00,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:00,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:00,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:00,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:00,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:00,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:00,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:42:00,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:00,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:00,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:00,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:00,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:00,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:42:00,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:00,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:00,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:00,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:00,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:00,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:00,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:00,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:00,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:00,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:42:00,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:00,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:00,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:00,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:00,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:00,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:00,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:00,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:00,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:42:00,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:00,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:00,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:00,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:00,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:00,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 08:42:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:00,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:00,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:00,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:00,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:00,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:00,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:00,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:00,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:00,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:00,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 08:42:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:00,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:00,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:00,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:00,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:00,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:00,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:00,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:00,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:00,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:00,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 08:42:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:00,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:00,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:00,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:00,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:00,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:00,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:00,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:00,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 08:42:00,217 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 08:42:00,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199525912] [2020-09-25 08:42:00,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:00,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:42:00,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120078559] [2020-09-25 08:42:00,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:42:00,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:00,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:42:00,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:42:00,223 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-25 08:42:00,912 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:42:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:42:01,730 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-09-25 08:42:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:42:01,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 08:42:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:42:01,735 INFO L225 Difference]: With dead ends: 365 [2020-09-25 08:42:01,736 INFO L226 Difference]: Without dead ends: 270 [2020-09-25 08:42:01,737 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 08:42:01,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-25 08:42:01,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-09-25 08:42:01,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 08:42:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 08:42:01,813 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 08:42:01,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:42:01,816 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 08:42:01,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:42:01,816 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 08:42:01,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 08:42:01,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:01,820 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 08:42:01,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:42:01,821 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:01,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:01,821 INFO L82 PathProgramCache]: Analyzing trace with hash 2018801783, now seen corresponding path program 1 times [2020-09-25 08:42:01,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:01,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466667345] [2020-09-25 08:42:01,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:01,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:02,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 08:42:05,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:42:05,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3159 [2020-09-25 08:42:05,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:05,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:42:05,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:42:05,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,489 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:42:05,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:42:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:05,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 08:42:05,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:05,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:05,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:42:05,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:05,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:05,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:05,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:05,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:42:05,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:05,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:05,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:42:05,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:05,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:05,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:05,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:05,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:42:05,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:05,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:05,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:05,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:42:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:42:05,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:05,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:05,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:42:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:42:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:05,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:05,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:05,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 08:42:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:05,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:05,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:05,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 08:42:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:05,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:05,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:05,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:05,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:05,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:05,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:05,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:05,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:05,745 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 08:42:05,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466667345] [2020-09-25 08:42:05,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:05,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:42:05,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954460168] [2020-09-25 08:42:05,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:42:05,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:05,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:42:05,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:42:05,748 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 08:42:06,202 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:42:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:42:07,731 INFO L93 Difference]: Finished difference Result 551 states and 637 transitions. [2020-09-25 08:42:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:42:07,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 08:42:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:42:07,739 INFO L225 Difference]: With dead ends: 551 [2020-09-25 08:42:07,741 INFO L226 Difference]: Without dead ends: 426 [2020-09-25 08:42:07,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:42:07,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-25 08:42:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 350. [2020-09-25 08:42:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 08:42:07,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 385 transitions. [2020-09-25 08:42:07,829 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 385 transitions. Word has length 167 [2020-09-25 08:42:07,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:42:07,829 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 385 transitions. [2020-09-25 08:42:07,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:42:07,830 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 385 transitions. [2020-09-25 08:42:07,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 08:42:07,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:07,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:42:07,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:42:07,833 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:07,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:07,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1851726168, now seen corresponding path program 1 times [2020-09-25 08:42:07,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:07,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330693003] [2020-09-25 08:42:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:07,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:09,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:09,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 08:42:09,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:09,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1799 [2020-09-25 08:42:09,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:09,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:09,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:42:09,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 08:42:09,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 08:42:09,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:10,031 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:42:10,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:42:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:42:10,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 08:42:10,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:10,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 08:42:10,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:10,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:42:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:10,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:10,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:10,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:10,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:42:10,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:10,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:42:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:10,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:10,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:10,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:42:10,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:10,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:42:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:10,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:42:10,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:10,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:10,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:42:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:42:10,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:42:10,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:10,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:42:10,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:10,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:42:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:42:10,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:10,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:42:10,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 08:42:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:10,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:10,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:42:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:10,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:10,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 08:42:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:10,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:42:10,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:42:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:42:10,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:42:10,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:42:10,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 08:42:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:42:10,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:42:10,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:42:10,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:42:10,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:42:10,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:42:10,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:42:10,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:42:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:42:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:42:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:42:10,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:42:10,468 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 08:42:10,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330693003] [2020-09-25 08:42:10,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:42:10,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:42:10,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837591600] [2020-09-25 08:42:10,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:42:10,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:42:10,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:42:10,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:42:10,473 INFO L87 Difference]: Start difference. First operand 350 states and 385 transitions. Second operand 9 states. [2020-09-25 08:42:11,069 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:42:12,978 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:42:13,246 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:42:13,625 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:42:14,010 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:42:14,351 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:42:14,638 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:42:14,936 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:42:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:42:15,677 INFO L93 Difference]: Finished difference Result 912 states and 1087 transitions. [2020-09-25 08:42:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 08:42:15,679 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-25 08:42:15,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:42:15,685 INFO L225 Difference]: With dead ends: 912 [2020-09-25 08:42:15,685 INFO L226 Difference]: Without dead ends: 672 [2020-09-25 08:42:15,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:42:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-09-25 08:42:15,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 577. [2020-09-25 08:42:15,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-09-25 08:42:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 653 transitions. [2020-09-25 08:42:15,770 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 653 transitions. Word has length 172 [2020-09-25 08:42:15,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:42:15,770 INFO L479 AbstractCegarLoop]: Abstraction has 577 states and 653 transitions. [2020-09-25 08:42:15,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:42:15,771 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 653 transitions. [2020-09-25 08:42:15,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 08:42:15,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:42:15,775 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] [2020-09-25 08:42:15,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:42:15,775 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:42:15,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:42:15,775 INFO L82 PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times [2020-09-25 08:42:15,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:42:15,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683415145] [2020-09-25 08:42:15,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:42:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:42:15,836 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:42:15,836 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:42:15,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:42:15,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:42:15 BoogieIcfgContainer [2020-09-25 08:42:15,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:42:15,870 INFO L168 Benchmark]: Toolchain (without parser) took 31135.82 ms. Allocated memory was 141.6 MB in the beginning and 604.5 MB in the end (delta: 462.9 MB). Free memory was 102.1 MB in the beginning and 190.9 MB in the end (delta: -88.8 MB). Peak memory consumption was 374.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:42:15,871 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:42:15,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.86 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 171.8 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-25 08:42:15,873 INFO L168 Benchmark]: Boogie Preprocessor took 110.14 ms. Allocated memory is still 204.5 MB. Free memory was 171.8 MB in the beginning and 168.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:42:15,873 INFO L168 Benchmark]: RCFGBuilder took 1209.72 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 168.0 MB in the beginning and 170.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-09-25 08:42:15,874 INFO L168 Benchmark]: TraceAbstraction took 29101.57 ms. Allocated memory was 235.4 MB in the beginning and 604.5 MB in the end (delta: 369.1 MB). Free memory was 170.6 MB in the beginning and 190.9 MB in the end (delta: -20.3 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2020-09-25 08:42:15,878 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.86 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 171.8 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.14 ms. Allocated memory is still 204.5 MB. Free memory was 171.8 MB in the beginning and 168.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1209.72 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 168.0 MB in the beginning and 170.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29101.57 ms. Allocated memory was 235.4 MB in the beginning and 604.5 MB in the end (delta: 369.1 MB). Free memory was 170.6 MB in the beginning and 190.9 MB in the end (delta: -20.3 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L89] int pumpRunning = 0; [L90] int systemActive = 1; [L356] int waterLevel = 1; [L357] int methaneLevelCritical = 0; [L445] int cleanupTimeShifts = 4; [L753] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L287] int splverifierCounter ; [L288] int tmp ; [L289] int tmp___0 ; [L290] int tmp___1 ; [L291] int tmp___2 ; [L294] splverifierCounter = 0 [L296] COND TRUE 1 [L298] COND TRUE splverifierCounter < 4 [L304] tmp = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp) [L308] CALL waterRise() [L374] COND TRUE waterLevel < 2 [L375] waterLevel = waterLevel + 1 [L308] RET waterRise() [L314] tmp___0 = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp___0)) [L324] tmp___2 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___2)) [L332] tmp___1 = __VERIFIER_nondet_int() [L334] COND TRUE \read(tmp___1) [L336] CALL stopSystem() [L263] COND FALSE !(\read(pumpRunning)) [L270] systemActive = 0 [L336] RET stopSystem() [L343] CALL timeShift() [L97] COND FALSE !(\read(pumpRunning)) [L104] COND FALSE !(\read(systemActive)) [L112] CALL __utac_acc__Specification3_spec__1() [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L557] CALL, EXPR isMethaneLevelCritical() [L395] int retValue_acc ; [L398] retValue_acc = methaneLevelCritical [L399] return (retValue_acc); [L557] RET, EXPR isMethaneLevelCritical() [L557] tmp = isMethaneLevelCritical() [L559] COND FALSE !(\read(tmp)) [L563] CALL, EXPR getWaterLevel() [L427] int retValue_acc ; [L430] retValue_acc = waterLevel [L431] return (retValue_acc); [L563] RET, EXPR getWaterLevel() [L563] tmp___0 = getWaterLevel() [L565] COND TRUE tmp___0 == 2 [L567] CALL, EXPR isPumpRunning() [L196] int retValue_acc ; [L199] retValue_acc = pumpRunning [L200] return (retValue_acc); [L567] RET, EXPR isPumpRunning() [L567] tmp___1 = isPumpRunning() [L569] COND FALSE !(\read(tmp___1)) [L573] CALL __automaton_fail() [L545] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 953 SDtfs, 1104 SDslu, 867 SDs, 0 SdLazy, 1981 SolverSat, 353 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 248 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 245972 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...