/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:12:26,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:12:26,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:12:26,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:12:26,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:12:26,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:12:26,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:12:26,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:12:26,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:12:26,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:12:26,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:12:26,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:12:26,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:12:26,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:12:26,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:12:26,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:12:26,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:12:26,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:12:26,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:12:26,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:12:26,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:12:26,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:12:26,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:12:26,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:12:26,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:12:26,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:12:26,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:12:26,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:12:26,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:12:26,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:12:26,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:12:26,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:12:26,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:12:26,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:12:26,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:12:26,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:12:26,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:12:26,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:12:26,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:12:26,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:12:26,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:12:26,224 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 13:12:26,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:12:26,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:12:26,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:12:26,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:12:26,252 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:12:26,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:12:26,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:12:26,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:12:26,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:12:26,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:12:26,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:12:26,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:12:26,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:12:26,254 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:12:26,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:12:26,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:12:26,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:12:26,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:12:26,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:12:26,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:12:26,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:12:26,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:12:26,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:12:26,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:12:26,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:12:26,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:12:26,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:12:26,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:12:26,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:12:26,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:12:26,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:12:26,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:12:26,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:12:26,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:12:26,741 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:12:26,742 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-09-25 13:12:26,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36e7870e1/8d60fd91012c41dbb3c8d9648a9453bd/FLAG702036e3a [2020-09-25 13:12:27,426 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:12:27,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-09-25 13:12:27,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36e7870e1/8d60fd91012c41dbb3c8d9648a9453bd/FLAG702036e3a [2020-09-25 13:12:27,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/36e7870e1/8d60fd91012c41dbb3c8d9648a9453bd [2020-09-25 13:12:27,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:12:27,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:12:27,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:12:27,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:12:27,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:12:27,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:12:27" (1/1) ... [2020-09-25 13:12:27,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:27, skipping insertion in model container [2020-09-25 13:12:27,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:12:27" (1/1) ... [2020-09-25 13:12:27,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:12:27,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:12:28,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:12:28,343 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:12:28,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:12:28,480 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:12:28,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28 WrapperNode [2020-09-25 13:12:28,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:12:28,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:12:28,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:12:28,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:12:28,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (1/1) ... [2020-09-25 13:12:28,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (1/1) ... [2020-09-25 13:12:28,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (1/1) ... [2020-09-25 13:12:28,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (1/1) ... [2020-09-25 13:12:28,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (1/1) ... [2020-09-25 13:12:28,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (1/1) ... [2020-09-25 13:12:28,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (1/1) ... [2020-09-25 13:12:28,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:12:28,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:12:28,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:12:28,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:12:28,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (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 13:12:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:12:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:12:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:12:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:12:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:12:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:12:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:12:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:12:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:12:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:12:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:12:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:12:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:12:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:12:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:12:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:12:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:12:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:12:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:12:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:12:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:12:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:12:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:12:28,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:12:28,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:12:28,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:12:28,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:12:28,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:12:28,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:12:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:12:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:12:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:12:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:12:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:12:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:12:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:12:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:12:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:12:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:12:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:12:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:12:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:12:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:12:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:12:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:12:28,670 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:12:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:12:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:12:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:12:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:12:28,671 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:12:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:12:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:12:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:12:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:12:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:12:28,672 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:12:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:12:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:12:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:12:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:12:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:12:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 13:12:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:12:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:12:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:12:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 13:12:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:12:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:12:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:12:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:12:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:12:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:12:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:12:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:12:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:12:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:12:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:12:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:12:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:12:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:12:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:12:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:12:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:12:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:12:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:12:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:12:28,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:12:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:12:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:12:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:12:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:12:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:12:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:12:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:12:29,918 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:12:29,918 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:12:29,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:12:29 BoogieIcfgContainer [2020-09-25 13:12:29,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:12:29,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:12:29,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:12:29,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:12:29,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:12:27" (1/3) ... [2020-09-25 13:12:29,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3958deda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:12:29, skipping insertion in model container [2020-09-25 13:12:29,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:12:28" (2/3) ... [2020-09-25 13:12:29,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3958deda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:12:29, skipping insertion in model container [2020-09-25 13:12:29,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:12:29" (3/3) ... [2020-09-25 13:12:29,937 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-09-25 13:12:29,950 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:12:29,962 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:12:29,986 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:12:30,028 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:12:30,028 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:12:30,028 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:12:30,028 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:12:30,029 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:12:30,029 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:12:30,029 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:12:30,029 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:12:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 13:12:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 13:12:30,085 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:30,087 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 13:12:30,087 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:30,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:30,097 INFO L82 PathProgramCache]: Analyzing trace with hash 179280132, now seen corresponding path program 1 times [2020-09-25 13:12:30,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:30,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949552834] [2020-09-25 13:12:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:30,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:30,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:32,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:35,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:35,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:12:35,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:12:35,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 13:12:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:35,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:12:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:12:35,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:12:35,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 13:12:36,102 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:12:36,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:12:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:36,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:36,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:36,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:12:36,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:36,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-25 13:12:36,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:36,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:36,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:12:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:36,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:12:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:36,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:36,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:36,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:36,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:36,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:12:36,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:36,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:36,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:36,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:36,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:36,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:12:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:36,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:36,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:36,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:36,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:36,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:36,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:12:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:36,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:36,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:36,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:36,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:36,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:12:36,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:36,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:36,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:36,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:12:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:36,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:36,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:36,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:36,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:36,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:36,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:36,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:36,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:36,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 13:12:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:36,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:36,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:36,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:36,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:36,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:36,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:36,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:36,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:36,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:12:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:36,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:36,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:36,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:36,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:36,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:36,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:36,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:36,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:36,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:36,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 13:12:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:36,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:36,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:36,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:36,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:36,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:12:36,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:36,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:36,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:36,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:36,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:36,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:36,701 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 13:12:36,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949552834] [2020-09-25 13:12:36,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:12:36,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:12:36,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706396455] [2020-09-25 13:12:36,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:12:36,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:12:36,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:12:36,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:12:36,743 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 4 states. [2020-09-25 13:12:37,478 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:40,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:12:40,306 INFO L93 Difference]: Finished difference Result 793 states and 949 transitions. [2020-09-25 13:12:40,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:12:40,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 13:12:40,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:12:40,340 INFO L225 Difference]: With dead ends: 793 [2020-09-25 13:12:40,340 INFO L226 Difference]: Without dead ends: 554 [2020-09-25 13:12:40,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:12:40,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-09-25 13:12:40,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 478. [2020-09-25 13:12:40,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-09-25 13:12:40,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 533 transitions. [2020-09-25 13:12:40,621 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 533 transitions. Word has length 153 [2020-09-25 13:12:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:12:40,625 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 533 transitions. [2020-09-25 13:12:40,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:12:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 533 transitions. [2020-09-25 13:12:40,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 13:12:40,645 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:40,645 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 13:12:40,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:12:40,646 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:40,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1284039027, now seen corresponding path program 1 times [2020-09-25 13:12:40,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:40,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55775032] [2020-09-25 13:12:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:40,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:40,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:41,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:41,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:45,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:45,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:45,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 13:12:45,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:12:45,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5125 [2020-09-25 13:12:45,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:45,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:45,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 13:12:45,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:12:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 13:12:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:46,380 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:12:46,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:12:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:46,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:12:46,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:46,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-09-25 13:12:46,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:46,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:46,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:46,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:12:46,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:46,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:12:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:46,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:46,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:46,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:46,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:46,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:46,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:46,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:12:46,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:12:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:46,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:46,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:46,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:46,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:12:46,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:46,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:46,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:46,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:46,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:12:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:46,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:46,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:46,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:12:46,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:46,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:46,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:46,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:12:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:46,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:46,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:46,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:46,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:12:46,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:46,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:12:46,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:12:46,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:12:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:46,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:46,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:12:46,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:12:46,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 13:12:46,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:46,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:46,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:46,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:46,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:12:46,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:12:46,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:12:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:46,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:46,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:12:46,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:12:46,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:46,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:46,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:12:46,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:12:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:46,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:46,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:46,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:12:46,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:47,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:47,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:47,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:12:47,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:12:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:47,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:47,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:47,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:47,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:47,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:12:47,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:47,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:12:47,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:47,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:47,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:47,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 13:12:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:47,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:47,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:47,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:47,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:47,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:12:47,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:47,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:12:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:12:47,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:12:47,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:12:47,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 13:12:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:12:47,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:12:47,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:12:47,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:12:47,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:12:47,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:12:47,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:12:47,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:12:47,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:12:47,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:12:47,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:12:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:12:47,160 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 13:12:47,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55775032] [2020-09-25 13:12:47,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:12:47,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:12:47,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045467890] [2020-09-25 13:12:47,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:12:47,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:12:47,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:12:47,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:12:47,176 INFO L87 Difference]: Start difference. First operand 478 states and 533 transitions. Second operand 9 states. [2020-09-25 13:12:47,947 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:50,055 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:50,363 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:12:50,752 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:51,142 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:12:51,459 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:51,920 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:12:52,223 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:12:54,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:12:54,279 INFO L93 Difference]: Finished difference Result 1417 states and 1822 transitions. [2020-09-25 13:12:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 13:12:54,280 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-09-25 13:12:54,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:12:54,292 INFO L225 Difference]: With dead ends: 1417 [2020-09-25 13:12:54,292 INFO L226 Difference]: Without dead ends: 1002 [2020-09-25 13:12:54,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 13:12:54,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2020-09-25 13:12:54,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 797. [2020-09-25 13:12:54,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-09-25 13:12:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 910 transitions. [2020-09-25 13:12:54,447 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 910 transitions. Word has length 167 [2020-09-25 13:12:54,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:12:54,448 INFO L479 AbstractCegarLoop]: Abstraction has 797 states and 910 transitions. [2020-09-25 13:12:54,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:12:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 910 transitions. [2020-09-25 13:12:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 13:12:54,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:12:54,454 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 13:12:54,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:12:54,454 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:12:54,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:12:54,455 INFO L82 PathProgramCache]: Analyzing trace with hash 403214129, now seen corresponding path program 1 times [2020-09-25 13:12:54,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:12:54,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267411410] [2020-09-25 13:12:54,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:12:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:12:54,524 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:12:54,524 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:12:54,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:12:54,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:12:54 BoogieIcfgContainer [2020-09-25 13:12:54,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:12:54,558 INFO L168 Benchmark]: Toolchain (without parser) took 26831.60 ms. Allocated memory was 140.0 MB in the beginning and 556.8 MB in the end (delta: 416.8 MB). Free memory was 102.4 MB in the beginning and 400.2 MB in the end (delta: -297.8 MB). Peak memory consumption was 119.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:54,559 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:12:54,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.06 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.8 MB in the beginning and 172.5 MB in the end (delta: -70.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:54,561 INFO L168 Benchmark]: Boogie Preprocessor took 99.84 ms. Allocated memory is still 203.9 MB. Free memory was 172.5 MB in the beginning and 168.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:54,562 INFO L168 Benchmark]: RCFGBuilder took 1345.66 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 168.3 MB in the beginning and 173.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:54,563 INFO L168 Benchmark]: TraceAbstraction took 24627.79 ms. Allocated memory was 238.0 MB in the beginning and 556.8 MB in the end (delta: 318.8 MB). Free memory was 173.4 MB in the beginning and 400.2 MB in the end (delta: -226.9 MB). Peak memory consumption was 91.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:12:54,567 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 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.06 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.8 MB in the beginning and 172.5 MB in the end (delta: -70.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.84 ms. Allocated memory is still 203.9 MB. Free memory was 172.5 MB in the beginning and 168.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1345.66 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 168.3 MB in the beginning and 173.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24627.79 ms. Allocated memory was 238.0 MB in the beginning and 556.8 MB in the end (delta: 318.8 MB). Free memory was 173.4 MB in the beginning and 400.2 MB in the end (delta: -226.9 MB). Peak memory consumption was 91.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; [L988] int retValue_acc ; [L989] int tmp ; [L993] FCALL select_helpers() [L994] FCALL select_features() [L995] CALL, EXPR valid_product() [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] return (retValue_acc); [L995] RET, EXPR valid_product() [L995] tmp = valid_product() [L997] COND TRUE \read(tmp) [L999] FCALL setup() [L1000] CALL runTest() [L982] CALL test() [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) [L68] CALL waterRise() [L830] COND TRUE waterLevel < 2 [L831] waterLevel = waterLevel + 1 [L68] RET waterRise() [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___1) [L96] CALL stopSystem() [L343] COND FALSE !(\read(pumpRunning)) [L350] systemActive = 0 [L96] RET stopSystem() [L103] CALL timeShift() [L132] COND FALSE !(\read(pumpRunning)) [L139] COND FALSE !(\read(systemActive)) [L147] CALL __utac_acc__Specification3_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L368] int tmp___1 ; [L372] CALL, EXPR isMethaneLevelCritical() [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] return (retValue_acc); [L372] RET, EXPR isMethaneLevelCritical() [L372] tmp = isMethaneLevelCritical() [L374] COND FALSE !(\read(tmp)) [L378] CALL, EXPR getWaterLevel() [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp___0 = getWaterLevel() [L380] COND TRUE tmp___0 == 2 [L382] CALL, EXPR isPumpRunning() [L257] int retValue_acc ; [L260] retValue_acc = pumpRunning [L261] return (retValue_acc); [L382] RET, EXPR isPumpRunning() [L382] tmp___1 = isPumpRunning() [L384] COND FALSE !(\read(tmp___1)) [L388] CALL __automaton_fail() [L769] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 662 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 584 SDtfs, 1184 SDslu, 731 SDs, 0 SdLazy, 2177 SolverSat, 405 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=797occurred in iteration=2, 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, 2 MinimizatonAttempts, 281 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 135514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...