/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:10:39,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:10:39,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:10:39,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:10:39,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:10:39,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:10:39,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:10:39,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:10:39,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:10:39,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:10:39,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:10:39,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:10:39,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:10:39,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:10:39,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:10:39,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:10:39,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:10:39,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:10:39,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:10:39,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:10:39,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:10:39,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:10:39,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:10:39,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:10:39,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:10:39,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:10:39,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:10:39,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:10:39,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:10:39,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:10:39,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:10:39,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:10:39,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:10:39,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:10:39,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:10:39,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:10:39,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:10:39,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:10:39,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:10:39,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:10:39,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:10:39,225 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 [2020-10-14 07:10:39,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:10:39,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:10:39,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:10:39,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:10:39,275 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:10:39,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:10:39,276 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:10:39,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:10:39,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:10:39,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:10:39,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:10:39,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:10:39,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:10:39,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:10:39,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:10:39,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:10:39,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:10:39,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:10:39,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:10:39,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:10:39,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:10:39,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:10:39,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:10:39,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:10:39,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:10:39,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:10:39,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:10:39,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:10:39,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:10:39,284 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:10:39,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:10:39,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:10:39,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:10:39,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:10:39,598 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:10:39,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-10-14 07:10:39,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9811edf5a/4958bbc95a914edd8acdeae2e19213ab/FLAG8cde5ff3c [2020-10-14 07:10:40,186 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:10:40,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-10-14 07:10:40,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9811edf5a/4958bbc95a914edd8acdeae2e19213ab/FLAG8cde5ff3c [2020-10-14 07:10:40,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9811edf5a/4958bbc95a914edd8acdeae2e19213ab [2020-10-14 07:10:40,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:10:40,511 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:10:40,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:10:40,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:10:40,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:10:40,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:40" (1/1) ... [2020-10-14 07:10:40,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c8b7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:40, skipping insertion in model container [2020-10-14 07:10:40,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:40" (1/1) ... [2020-10-14 07:10:40,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:10:40,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:10:41,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:10:41,030 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:10:41,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:10:41,180 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:10:41,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41 WrapperNode [2020-10-14 07:10:41,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:10:41,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:10:41,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:10:41,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:10:41,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (1/1) ... [2020-10-14 07:10:41,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (1/1) ... [2020-10-14 07:10:41,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (1/1) ... [2020-10-14 07:10:41,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (1/1) ... [2020-10-14 07:10:41,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (1/1) ... [2020-10-14 07:10:41,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (1/1) ... [2020-10-14 07:10:41,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (1/1) ... [2020-10-14 07:10:41,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:10:41,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:10:41,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:10:41,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:10:41,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (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 [2020-10-14 07:10:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:10:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:10:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:10:41,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:10:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:10:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:10:41,363 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:10:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:10:41,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:10:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:10:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-14 07:10:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:10:41,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:10:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:10:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:10:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:10:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:10:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:10:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:10:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:10:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:10:41,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:10:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:10:41,369 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:10:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:10:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:10:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:10:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:10:41,370 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:10:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-14 07:10:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:10:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-14 07:10:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:10:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:10:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:10:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:10:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:10:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-14 07:10:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:10:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:10:41,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:10:41,373 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:10:41,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:10:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:10:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:10:41,375 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:10:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:10:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:10:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:10:41,376 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-14 07:10:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:10:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:10:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:10:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:10:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:10:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:10:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:10:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:10:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:10:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:10:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:10:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:10:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:10:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:10:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:10:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:10:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:10:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:10:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:10:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:10:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:10:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:10:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:10:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:10:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:10:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:10:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:10:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:10:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:10:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:10:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:10:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:10:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:10:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-14 07:10:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-14 07:10:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:10:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-14 07:10:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:10:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:10:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:10:42,599 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:10:42,600 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:10:42,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:42 BoogieIcfgContainer [2020-10-14 07:10:42,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:10:42,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:10:42,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:10:42,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:10:42,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:10:40" (1/3) ... [2020-10-14 07:10:42,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d097842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:42, skipping insertion in model container [2020-10-14 07:10:42,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:41" (2/3) ... [2020-10-14 07:10:42,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d097842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:42, skipping insertion in model container [2020-10-14 07:10:42,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:42" (3/3) ... [2020-10-14 07:10:42,620 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2020-10-14 07:10:42,631 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:10:42,638 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:10:42,652 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:10:42,678 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:10:42,679 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:10:42,679 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:10:42,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:10:42,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:10:42,680 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:10:42,680 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:10:42,680 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:10:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-10-14 07:10:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:10:42,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:42,717 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] [2020-10-14 07:10:42,718 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:42,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:42,725 INFO L82 PathProgramCache]: Analyzing trace with hash -720125183, now seen corresponding path program 1 times [2020-10-14 07:10:42,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:42,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899608173] [2020-10-14 07:10:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:43,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:43,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 07:10:45,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:10:45,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2051 [2020-10-14 07:10:45,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:10:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:10:45,543 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:45,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:45,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:45,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:45,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:10:45,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:45,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:45,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:45,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:45,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:45,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:45,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:45,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:45,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:45,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:45,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:45,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:45,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:45,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:45,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:45,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:45,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:45,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:45,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:45,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:45,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:45,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:10:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:45,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:45,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:45,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:45,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:45,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:10:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:45,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:45,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:45,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:45,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:45,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:10:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:45,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:45,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:45,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:45,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:45,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:45,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:45,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899608173] [2020-10-14 07:10:45,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:45,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:10:45,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432332940] [2020-10-14 07:10:45,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:10:45,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:45,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:10:45,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:10:45,721 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 3 states. [2020-10-14 07:10:46,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:46,868 INFO L93 Difference]: Finished difference Result 291 states and 384 transitions. [2020-10-14 07:10:46,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:10:46,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-14 07:10:46,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:46,886 INFO L225 Difference]: With dead ends: 291 [2020-10-14 07:10:46,886 INFO L226 Difference]: Without dead ends: 157 [2020-10-14 07:10:46,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:10:46,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-14 07:10:46,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 125. [2020-10-14 07:10:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-14 07:10:46,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2020-10-14 07:10:46,993 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 52 [2020-10-14 07:10:46,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:46,993 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2020-10-14 07:10:46,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:10:46,993 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2020-10-14 07:10:46,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:10:46,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:46,997 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] [2020-10-14 07:10:46,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:10:46,998 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:46,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:46,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1479231386, now seen corresponding path program 1 times [2020-10-14 07:10:46,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:46,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274371115] [2020-10-14 07:10:46,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:47,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:47,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:47,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:48,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:48,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:10:48,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:10:48,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1564 [2020-10-14 07:10:48,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:48,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:48,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 07:10:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:48,904 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:48,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:48,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:49,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:49,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:49,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 07:10:49,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:49,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:49,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:49,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:49,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:10:49,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:49,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:49,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:49,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:49,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:49,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:49,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:49,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:49,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:49,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:49,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:49,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:49,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:49,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:49,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:49,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:49,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:49,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:49,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:49,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:49,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:49,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:49,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:49,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:49,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:49,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:49,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:49,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:49,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:49,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:49,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:49,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:49,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:10:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:49,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:49,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:49,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:49,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:49,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:49,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:49,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:10:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:49,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:49,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:49,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:49,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:49,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:49,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:49,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:49,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 07:10:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:49,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:49,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:49,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:49,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:49,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:49,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:49,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:49,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:49,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274371115] [2020-10-14 07:10:49,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:49,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:10:49,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766210264] [2020-10-14 07:10:49,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:10:49,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:49,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:10:49,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:10:49,087 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand 4 states. [2020-10-14 07:10:49,409 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:10:50,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:50,326 INFO L93 Difference]: Finished difference Result 258 states and 328 transitions. [2020-10-14 07:10:50,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:10:50,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 07:10:50,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:50,330 INFO L225 Difference]: With dead ends: 258 [2020-10-14 07:10:50,330 INFO L226 Difference]: Without dead ends: 157 [2020-10-14 07:10:50,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:10:50,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-14 07:10:50,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 125. [2020-10-14 07:10:50,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-14 07:10:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 147 transitions. [2020-10-14 07:10:50,374 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 147 transitions. Word has length 53 [2020-10-14 07:10:50,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:50,375 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 147 transitions. [2020-10-14 07:10:50,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:10:50,375 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 147 transitions. [2020-10-14 07:10:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 07:10:50,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:50,378 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] [2020-10-14 07:10:50,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:10:50,379 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:50,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:50,379 INFO L82 PathProgramCache]: Analyzing trace with hash -524642989, now seen corresponding path program 1 times [2020-10-14 07:10:50,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:50,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401420905] [2020-10-14 07:10:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:50,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 07:10:51,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 661 [2020-10-14 07:10:51,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:10:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:51,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 07:10:51,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:51,487 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:51,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 07:10:51,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:10:51,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:51,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:51,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:51,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:51,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:51,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:51,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:51,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:51,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:10:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:10:51,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:10:51,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 07:10:51,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:10:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:10:51,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:10:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:51,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:10:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:51,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:51,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 07:10:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:10:51,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:10:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:51,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 07:10:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:51,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:51,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401420905] [2020-10-14 07:10:51,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:51,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:10:51,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251034440] [2020-10-14 07:10:51,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:10:51,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:51,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:10:51,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:10:51,762 INFO L87 Difference]: Start difference. First operand 125 states and 147 transitions. Second operand 8 states. [2020-10-14 07:10:52,359 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:10:53,979 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:10:54,261 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:10:54,588 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:10:55,010 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:10:55,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:55,774 INFO L93 Difference]: Finished difference Result 396 states and 539 transitions. [2020-10-14 07:10:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:10:55,775 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-10-14 07:10:55,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:55,782 INFO L225 Difference]: With dead ends: 396 [2020-10-14 07:10:55,782 INFO L226 Difference]: Without dead ends: 295 [2020-10-14 07:10:55,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:10:55,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-14 07:10:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 226. [2020-10-14 07:10:55,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-14 07:10:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 278 transitions. [2020-10-14 07:10:55,855 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 278 transitions. Word has length 70 [2020-10-14 07:10:55,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:55,855 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 278 transitions. [2020-10-14 07:10:55,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:10:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 278 transitions. [2020-10-14 07:10:55,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 07:10:55,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:55,860 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] [2020-10-14 07:10:55,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:10:55,861 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:55,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:55,861 INFO L82 PathProgramCache]: Analyzing trace with hash 691700877, now seen corresponding path program 1 times [2020-10-14 07:10:55,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:55,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034093871] [2020-10-14 07:10:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:56,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:56,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:56,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:00,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:00,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 07:11:00,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:11:00,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 07:11:00,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:00,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:00,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:11:00,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-14 07:11:00,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:11:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:01,140 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:11:01,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:11:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:01,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:11:01,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:01,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:11:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:01,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:11:01,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:01,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:11:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:01,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:11:01,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:01,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:01,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:11:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:01,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:11:01,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:01,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:11:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:01,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:11:01,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:01,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:01,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-14 07:11:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:01,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:01,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:11:01,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:01,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:11:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:11:01,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:11:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 07:11:01,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:11:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:11:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 07:11:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:01,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:11:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:11:01,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:11:01,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:01,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:01,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 07:11:01,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:01,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:11:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:01,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:11:01,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:01,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:01,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 07:11:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:01,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:01,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:01,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 07:11:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:01,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:01,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:01,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 07:11:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:01,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:01,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:01,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:01,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:11:01,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:01,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:01,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:01,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:11:01,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034093871] [2020-10-14 07:11:01,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:11:01,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:11:01,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630637613] [2020-10-14 07:11:01,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:11:01,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:11:01,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:11:01,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:11:01,332 INFO L87 Difference]: Start difference. First operand 226 states and 278 transitions. Second operand 7 states. [2020-10-14 07:11:01,955 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:11:02,173 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:11:04,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:11:04,792 INFO L93 Difference]: Finished difference Result 608 states and 863 transitions. [2020-10-14 07:11:04,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:11:04,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-14 07:11:04,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:11:04,808 INFO L225 Difference]: With dead ends: 608 [2020-10-14 07:11:04,808 INFO L226 Difference]: Without dead ends: 396 [2020-10-14 07:11:04,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:11:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-10-14 07:11:04,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 337. [2020-10-14 07:11:04,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-14 07:11:04,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 432 transitions. [2020-10-14 07:11:04,895 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 432 transitions. Word has length 74 [2020-10-14 07:11:04,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:11:04,896 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 432 transitions. [2020-10-14 07:11:04,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:11:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 432 transitions. [2020-10-14 07:11:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 07:11:04,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:04,900 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] [2020-10-14 07:11:04,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:11:04,901 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:04,901 INFO L82 PathProgramCache]: Analyzing trace with hash 35008173, now seen corresponding path program 1 times [2020-10-14 07:11:04,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:04,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953480326] [2020-10-14 07:11:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:11:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:11:04,939 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:11:04,940 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:11:04,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:11:04,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:11:04 BoogieIcfgContainer [2020-10-14 07:11:04,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:11:04,970 INFO L168 Benchmark]: Toolchain (without parser) took 24459.49 ms. Allocated memory was 148.9 MB in the beginning and 629.7 MB in the end (delta: 480.8 MB). Free memory was 103.5 MB in the beginning and 536.5 MB in the end (delta: -433.0 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:04,971 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 07:11:04,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.36 ms. Allocated memory was 148.9 MB in the beginning and 206.0 MB in the end (delta: 57.1 MB). Free memory was 103.1 MB in the beginning and 173.5 MB in the end (delta: -70.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:04,973 INFO L168 Benchmark]: Boogie Preprocessor took 97.21 ms. Allocated memory is still 206.0 MB. Free memory was 173.5 MB in the beginning and 168.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:04,974 INFO L168 Benchmark]: RCFGBuilder took 1327.97 ms. Allocated memory was 206.0 MB in the beginning and 233.8 MB in the end (delta: 27.8 MB). Free memory was 168.7 MB in the beginning and 190.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:04,975 INFO L168 Benchmark]: TraceAbstraction took 22356.73 ms. Allocated memory was 233.8 MB in the beginning and 629.7 MB in the end (delta: 395.8 MB). Free memory was 188.4 MB in the beginning and 536.5 MB in the end (delta: -348.1 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:04,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.36 ms. Allocated memory was 148.9 MB in the beginning and 206.0 MB in the end (delta: 57.1 MB). Free memory was 103.1 MB in the beginning and 173.5 MB in the end (delta: -70.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.21 ms. Allocated memory is still 206.0 MB. Free memory was 173.5 MB in the beginning and 168.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1327.97 ms. Allocated memory was 206.0 MB in the beginning and 233.8 MB in the end (delta: 27.8 MB). Free memory was 168.7 MB in the beginning and 190.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22356.73 ms. Allocated memory was 233.8 MB in the beginning and 629.7 MB in the end (delta: 395.8 MB). Free memory was 188.4 MB in the beginning and 536.5 MB in the end (delta: -348.1 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 580]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L83] int waterLevel = 1; [L84] int methaneLevelCritical = 0; [L341] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L666] FCALL select_helpers() [L667] FCALL select_features() [L668] CALL, EXPR valid_product() [L567] int retValue_acc ; [L570] retValue_acc = 1 [L571] return (retValue_acc); [L668] RET, EXPR valid_product() [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L672] FCALL setup() [L673] CALL runTest() [L655] CALL test() [L882] int splverifierCounter ; [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L886] int tmp___2 ; [L889] splverifierCounter = 0 [L891] COND TRUE 1 [L893] COND TRUE splverifierCounter < 4 [L899] tmp = __VERIFIER_nondet_int() [L901] COND TRUE \read(tmp) [L903] CALL waterRise() [L101] COND TRUE waterLevel < 2 [L102] waterLevel = waterLevel + 1 [L903] RET waterRise() [L909] tmp___0 = __VERIFIER_nondet_int() [L911] COND FALSE !(\read(tmp___0)) [L919] tmp___2 = __VERIFIER_nondet_int() [L921] COND TRUE \read(tmp___2) [L934] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L748] int tmp ; [L751] COND FALSE !(\read(pumpRunning)) [L766] CALL processEnvironment__wrappee__methaneQuery() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L766] RET processEnvironment__wrappee__methaneQuery() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L122] int retValue_acc ; [L125] retValue_acc = methaneLevelCritical [L126] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L154] int retValue_acc ; [L157] retValue_acc = waterLevel [L158] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L817] int retValue_acc ; [L820] retValue_acc = pumpRunning [L821] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L580] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 234 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 608 SDtfs, 838 SDslu, 426 SDs, 0 SdLazy, 1809 SolverSat, 528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=337occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 70742 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...