/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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:12:12,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:12:12,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:12:12,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:12:12,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:12:12,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:12:12,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:12:12,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:12:12,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:12:12,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:12:12,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:12:12,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:12:12,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:12:12,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:12:12,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:12:12,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:12:12,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:12:12,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:12:12,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:12:12,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:12:12,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:12:12,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:12:12,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:12:12,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:12:12,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:12:12,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:12:12,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:12:12,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:12:12,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:12:12,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:12:12,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:12:12,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:12:12,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:12:12,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:12:12,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:12:12,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:12:12,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:12:12,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:12:12,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:12:12,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:12:12,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:12:12,200 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 07:12:12,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:12:12,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:12:12,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:12:12,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:12:12,224 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:12:12,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:12:12,225 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:12:12,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:12:12,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:12:12,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:12:12,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:12:12,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:12:12,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:12:12,226 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:12:12,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:12:12,226 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:12:12,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:12:12,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:12:12,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:12:12,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:12:12,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:12:12,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:12:12,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:12:12,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:12:12,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:12:12,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:12:12,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:12:12,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:12:12,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:12:12,230 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 07:12:12,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:12:12,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:12:12,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:12:12,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:12:12,575 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:12:12,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-10-14 07:12:12,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953d006b7/594a027d21614a21a973ce91dd8a2c1e/FLAGcc7dd90b0 [2020-10-14 07:12:13,177 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:12:13,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-10-14 07:12:13,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953d006b7/594a027d21614a21a973ce91dd8a2c1e/FLAGcc7dd90b0 [2020-10-14 07:12:13,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953d006b7/594a027d21614a21a973ce91dd8a2c1e [2020-10-14 07:12:13,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:12:13,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:12:13,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:12:13,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:12:13,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:12:13,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:12:13" (1/1) ... [2020-10-14 07:12:13,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e51550b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:13, skipping insertion in model container [2020-10-14 07:12:13,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:12:13" (1/1) ... [2020-10-14 07:12:13,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:12:13,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:12:14,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:12:14,087 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:12:14,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:12:14,210 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:12:14,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14 WrapperNode [2020-10-14 07:12:14,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:12:14,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:12:14,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:12:14,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:12:14,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (1/1) ... [2020-10-14 07:12:14,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (1/1) ... [2020-10-14 07:12:14,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (1/1) ... [2020-10-14 07:12:14,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (1/1) ... [2020-10-14 07:12:14,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (1/1) ... [2020-10-14 07:12:14,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (1/1) ... [2020-10-14 07:12:14,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (1/1) ... [2020-10-14 07:12:14,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:12:14,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:12:14,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:12:14,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:12:14,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (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 07:12:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:12:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:12:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:12:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:12:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:12:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:12:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:12:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:12:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-14 07:12:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:12:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:12:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:12:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:12:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:12:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-14 07:12:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-14 07:12:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-14 07:12:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-14 07:12:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:12:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:12:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:12:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:12:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:12:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:12:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:12:14,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:12:14,401 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:12:14,402 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:12:14,402 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:12:14,402 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:12:14,402 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:12:14,402 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:12:14,403 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:12:14,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:12:14,403 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:12:14,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:12:14,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-14 07:12:14,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-14 07:12:14,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:12:14,404 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:12:14,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:12:14,404 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:12:14,404 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:12:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:12:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:12:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:12:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:12:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:12:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-14 07:12:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-14 07:12:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:12:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:12:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:12:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:12:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:12:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:12:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-14 07:12:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-14 07:12:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:12:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:12:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:12:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:12:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:12:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:12:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:12:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-14 07:12:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:12:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-14 07:12:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-14 07:12:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:12:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:12:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:12:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:12:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:12:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:12:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:12:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:12:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:12:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:12:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:12:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:12:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:12:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:12:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:12:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:12:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:12:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:12:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:12:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:12:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:12:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:12:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:12:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:12:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:12:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:12:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:12:14,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:12:14,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:12:14,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:12:14,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:12:15,430 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:12:15,430 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:12:15,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:12:15 BoogieIcfgContainer [2020-10-14 07:12:15,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:12:15,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:12:15,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:12:15,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:12:15,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:12:13" (1/3) ... [2020-10-14 07:12:15,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758ac4ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:12:15, skipping insertion in model container [2020-10-14 07:12:15,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:12:14" (2/3) ... [2020-10-14 07:12:15,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758ac4ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:12:15, skipping insertion in model container [2020-10-14 07:12:15,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:12:15" (3/3) ... [2020-10-14 07:12:15,444 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-10-14 07:12:15,455 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:12:15,463 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:12:15,479 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:12:15,505 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:12:15,505 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:12:15,506 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:12:15,506 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:12:15,506 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:12:15,506 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:12:15,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:12:15,507 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:12:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-10-14 07:12:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:12:15,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:15,544 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 07:12:15,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:15,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:15,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1529441714, now seen corresponding path program 1 times [2020-10-14 07:12:15,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:15,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19006926] [2020-10-14 07:12:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:15,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:17,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 07:12:18,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:12:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2416 [2020-10-14 07:12:18,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:18,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:12:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-14 07:12:18,835 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:18,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:18,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:18,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 07:12:18,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:18,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:18,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:18,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:18,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:18,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:18,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:18,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:18,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:18,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:18,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:18,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:18,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:18,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:18,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:18,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:18,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:18,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:18,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:18,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:18,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:18,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:18,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:18,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:18,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:18,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:18,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:18,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:18,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:18,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:18,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:18,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:18,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:18,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:18,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:18,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:12:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:18,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:18,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:18,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:18,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:18,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:12:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:18,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:18,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:18,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:18,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:18,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:18,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:12:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:18,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:18,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:18,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:18,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:19,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:19,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:19,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:19,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:19,016 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 07:12:19,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19006926] [2020-10-14 07:12:19,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:19,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:12:19,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501221464] [2020-10-14 07:12:19,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:12:19,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:19,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:12:19,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:12:19,051 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-10-14 07:12:20,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:20,458 INFO L93 Difference]: Finished difference Result 358 states and 461 transitions. [2020-10-14 07:12:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:12:20,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-14 07:12:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:20,476 INFO L225 Difference]: With dead ends: 358 [2020-10-14 07:12:20,476 INFO L226 Difference]: Without dead ends: 193 [2020-10-14 07:12:20,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:12:20,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-14 07:12:20,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 156. [2020-10-14 07:12:20,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-14 07:12:20,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2020-10-14 07:12:20,592 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 52 [2020-10-14 07:12:20,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:20,593 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2020-10-14 07:12:20,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:12:20,593 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2020-10-14 07:12:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:12:20,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:20,600 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 07:12:20,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:12:20,600 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:20,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:20,601 INFO L82 PathProgramCache]: Analyzing trace with hash 2080089166, now seen corresponding path program 1 times [2020-10-14 07:12:20,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:20,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800103236] [2020-10-14 07:12:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:20,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:20,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:21,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:22,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:22,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:12:22,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:12:22,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2121 [2020-10-14 07:12:22,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:22,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:12:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:12:22,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,064 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:23,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:12:23,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:23,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:23,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:23,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:23,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:23,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:23,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:23,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:23,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:12:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:23,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:23,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 07:12:23,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:12:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:23,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:23,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:23,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 07:12:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:23,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:23,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:23,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:23,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:23,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:23,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:23,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:23,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:23,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:23,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:23,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:23,172 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 07:12:23,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800103236] [2020-10-14 07:12:23,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:23,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:12:23,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744671896] [2020-10-14 07:12:23,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:12:23,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:23,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:12:23,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:12:23,178 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand 4 states. [2020-10-14 07:12:23,578 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:12:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:24,633 INFO L93 Difference]: Finished difference Result 281 states and 340 transitions. [2020-10-14 07:12:24,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:12:24,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 07:12:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:24,637 INFO L225 Difference]: With dead ends: 281 [2020-10-14 07:12:24,637 INFO L226 Difference]: Without dead ends: 177 [2020-10-14 07:12:24,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 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 07:12:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-14 07:12:24,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 147. [2020-10-14 07:12:24,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-14 07:12:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 171 transitions. [2020-10-14 07:12:24,699 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 171 transitions. Word has length 53 [2020-10-14 07:12:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:24,699 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 171 transitions. [2020-10-14 07:12:24,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:12:24,700 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 171 transitions. [2020-10-14 07:12:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 07:12:24,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:24,702 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] [2020-10-14 07:12:24,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:12:24,702 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:24,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:24,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1856420908, now seen corresponding path program 1 times [2020-10-14 07:12:24,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:24,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739463388] [2020-10-14 07:12:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:24,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:24,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:25,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:25,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 07:12:25,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:12:25,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1051 [2020-10-14 07:12:25,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:25,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:25,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:12:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 07:12:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,120 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:26,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:26,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:26,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:26,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:26,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 07:12:26,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:26,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:26,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:26,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:26,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:12:26,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:26,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:26,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:26,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:26,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:26,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:26,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:26,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:26,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:26,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:26,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:26,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:26,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:26,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:26,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:26,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:26,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:26,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:26,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:26,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:26,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:26,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:26,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:26,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:26,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:26,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:26,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:26,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:26,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:26,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:26,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:26,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:26,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:26,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:26,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:26,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:26,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:26,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:12:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:26,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:26,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:26,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:26,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:26,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:26,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:12:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:26,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:26,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:26,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:26,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:26,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:26,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:26,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:26,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 07:12:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:26,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:26,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:26,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:26,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:26,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:26,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:26,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:26,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:26,302 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 07:12:26,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [739463388] [2020-10-14 07:12:26,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:26,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:12:26,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815934445] [2020-10-14 07:12:26,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:12:26,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:26,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:12:26,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:12:26,305 INFO L87 Difference]: Start difference. First operand 147 states and 171 transitions. Second operand 4 states. [2020-10-14 07:12:26,570 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:12:28,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:28,477 INFO L93 Difference]: Finished difference Result 437 states and 533 transitions. [2020-10-14 07:12:28,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:12:28,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-14 07:12:28,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:28,483 INFO L225 Difference]: With dead ends: 437 [2020-10-14 07:12:28,484 INFO L226 Difference]: Without dead ends: 314 [2020-10-14 07:12:28,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:12:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-14 07:12:28,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 260. [2020-10-14 07:12:28,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-10-14 07:12:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 309 transitions. [2020-10-14 07:12:28,609 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 309 transitions. Word has length 58 [2020-10-14 07:12:28,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:28,610 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 309 transitions. [2020-10-14 07:12:28,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:12:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 309 transitions. [2020-10-14 07:12:28,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 07:12:28,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:28,619 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] [2020-10-14 07:12:28,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:12:28,619 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:28,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:28,619 INFO L82 PathProgramCache]: Analyzing trace with hash 425111279, now seen corresponding path program 1 times [2020-10-14 07:12:28,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:28,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328642747] [2020-10-14 07:12:28,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:28,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:29,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:29,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 07:12:29,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:29,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1111 [2020-10-14 07:12:29,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:29,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:12:29,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:29,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:12:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:30,097 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:30,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:30,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 07:12:30,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:12:30,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:30,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:30,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:30,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:30,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:30,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:30,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:30,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:30,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:30,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:30,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:30,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:30,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:12:30,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:30,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:30,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:30,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:12:30,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:30,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:30,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:30,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:30,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:12:30,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:30,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:12:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:12:30,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:30,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:30,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:12:30,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:30,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:12:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:30,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:30,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:30,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:12:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:30,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:12:30,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:12:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:30,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:30,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 07:12:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:30,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:30,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:30,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:30,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:30,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:30,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:12:30,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:30,303 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 07:12:30,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328642747] [2020-10-14 07:12:30,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:30,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:12:30,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112911736] [2020-10-14 07:12:30,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:12:30,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:30,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:12:30,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:12:30,306 INFO L87 Difference]: Start difference. First operand 260 states and 309 transitions. Second operand 8 states. [2020-10-14 07:12:30,625 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:12:32,133 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:12:32,513 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:12:32,809 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:12:33,084 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:12:34,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:34,203 INFO L93 Difference]: Finished difference Result 811 states and 1042 transitions. [2020-10-14 07:12:34,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:12:34,204 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-14 07:12:34,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:34,210 INFO L225 Difference]: With dead ends: 811 [2020-10-14 07:12:34,210 INFO L226 Difference]: Without dead ends: 575 [2020-10-14 07:12:34,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:12:34,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-10-14 07:12:34,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 503. [2020-10-14 07:12:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-10-14 07:12:34,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 607 transitions. [2020-10-14 07:12:34,326 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 607 transitions. Word has length 63 [2020-10-14 07:12:34,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:34,326 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 607 transitions. [2020-10-14 07:12:34,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:12:34,327 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 607 transitions. [2020-10-14 07:12:34,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:12:34,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:34,330 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] [2020-10-14 07:12:34,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:12:34,330 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:34,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:34,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1458119221, now seen corresponding path program 1 times [2020-10-14 07:12:34,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:34,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430865718] [2020-10-14 07:12:34,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:34,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:34,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:35,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:38,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 07:12:39,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 07:12:39,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 07:12:39,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:12:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 07:12:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 07:12:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,757 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:12:39,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:12:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:39,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:12:39,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:39,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:12:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:39,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:39,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:39,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:12:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:39,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:12:39,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:12:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:39,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:39,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:39,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:12:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:12:39,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:39,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:39,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:39,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:12:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:12:39,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:12:39,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:12:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:12:39,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 07:12:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:39,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:39,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:39,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 07:12:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:39,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:12:39,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:39,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 07:12:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:39,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:12:39,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:12:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-14 07:12:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:12:39,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:12:39,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:12:39,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:12:39,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:12:39,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:12:39,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:12:39,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:12:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:12:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:12:39,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:12:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:12:39,938 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 07:12:39,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430865718] [2020-10-14 07:12:39,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:12:39,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 07:12:39,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101746554] [2020-10-14 07:12:39,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 07:12:39,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:12:39,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 07:12:39,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 07:12:39,940 INFO L87 Difference]: Start difference. First operand 503 states and 607 transitions. Second operand 9 states. [2020-10-14 07:12:40,819 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:12:42,254 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:12:42,522 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-14 07:12:42,916 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-14 07:12:43,188 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-14 07:12:43,472 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:12:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:12:44,962 INFO L93 Difference]: Finished difference Result 1342 states and 1762 transitions. [2020-10-14 07:12:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 07:12:44,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 07:12:44,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:12:44,970 INFO L225 Difference]: With dead ends: 1342 [2020-10-14 07:12:44,971 INFO L226 Difference]: Without dead ends: 863 [2020-10-14 07:12:44,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-14 07:12:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2020-10-14 07:12:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 749. [2020-10-14 07:12:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-10-14 07:12:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 906 transitions. [2020-10-14 07:12:45,135 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 906 transitions. Word has length 67 [2020-10-14 07:12:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:12:45,135 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 906 transitions. [2020-10-14 07:12:45,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 07:12:45,136 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 906 transitions. [2020-10-14 07:12:45,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:12:45,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:12:45,139 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] [2020-10-14 07:12:45,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:12:45,139 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:12:45,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:12:45,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1610113419, now seen corresponding path program 1 times [2020-10-14 07:12:45,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:12:45,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285202198] [2020-10-14 07:12:45,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:12:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:12:45,177 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:12:45,177 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:12:45,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:12:45,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:12:45 BoogieIcfgContainer [2020-10-14 07:12:45,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:12:45,207 INFO L168 Benchmark]: Toolchain (without parser) took 31685.25 ms. Allocated memory was 145.8 MB in the beginning and 759.7 MB in the end (delta: 613.9 MB). Free memory was 101.0 MB in the beginning and 295.9 MB in the end (delta: -195.0 MB). Peak memory consumption was 419.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:45,208 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 07:12:45,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.67 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 100.5 MB in the beginning and 166.5 MB in the end (delta: -65.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:45,210 INFO L168 Benchmark]: Boogie Preprocessor took 99.86 ms. Allocated memory is still 201.3 MB. Free memory was 166.5 MB in the beginning and 162.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:45,211 INFO L168 Benchmark]: RCFGBuilder took 1124.19 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 162.5 MB in the beginning and 189.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:45,212 INFO L168 Benchmark]: TraceAbstraction took 29768.46 ms. Allocated memory was 233.3 MB in the beginning and 759.7 MB in the end (delta: 526.4 MB). Free memory was 188.1 MB in the beginning and 295.9 MB in the end (delta: -107.9 MB). Peak memory consumption was 418.5 MB. Max. memory is 7.1 GB. [2020-10-14 07:12:45,215 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 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.67 ms. Allocated memory was 145.8 MB in the beginning and 201.3 MB in the end (delta: 55.6 MB). Free memory was 100.5 MB in the beginning and 166.5 MB in the end (delta: -65.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.86 ms. Allocated memory is still 201.3 MB. Free memory was 166.5 MB in the beginning and 162.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1124.19 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 162.5 MB in the beginning and 189.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29768.46 ms. Allocated memory was 233.3 MB in the beginning and 759.7 MB in the end (delta: 526.4 MB). Free memory was 188.1 MB in the beginning and 295.9 MB in the end (delta: -107.9 MB). Peak memory consumption was 418.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; [L988] int retValue_acc ; [L989] int tmp ; [L993] FCALL select_helpers() [L994] FCALL select_features() [L995] CALL, EXPR valid_product() [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] return (retValue_acc); [L995] RET, EXPR valid_product() [L995] tmp = valid_product() [L997] COND TRUE \read(tmp) [L999] FCALL setup() [L1000] CALL runTest() [L982] CALL test() [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) [L68] CALL waterRise() [L830] COND TRUE waterLevel < 2 [L831] waterLevel = waterLevel + 1 [L68] RET waterRise() [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___1) [L96] CALL stopSystem() [L343] COND FALSE !(\read(pumpRunning)) [L350] systemActive = 0 [L96] RET stopSystem() [L103] CALL timeShift() [L132] COND FALSE !(\read(pumpRunning)) [L139] COND FALSE !(\read(systemActive)) [L147] CALL __utac_acc__Specification3_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L368] int tmp___1 ; [L372] CALL, EXPR isMethaneLevelCritical() [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] return (retValue_acc); [L372] RET, EXPR isMethaneLevelCritical() [L372] tmp = isMethaneLevelCritical() [L374] COND FALSE !(\read(tmp)) [L378] CALL, EXPR getWaterLevel() [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp___0 = getWaterLevel() [L380] COND TRUE tmp___0 == 2 [L382] CALL, EXPR isPumpRunning() [L257] int retValue_acc ; [L260] retValue_acc = pumpRunning [L261] return (retValue_acc); [L382] RET, EXPR isPumpRunning() [L382] tmp___1 = isPumpRunning() [L384] COND FALSE !(\read(tmp___1)) [L388] CALL __automaton_fail() [L769] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 795 SDtfs, 964 SDslu, 586 SDs, 0 SdLazy, 2900 SolverSat, 628 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=749occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 307 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 84844 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...