/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:42:00,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:42:00,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:42:00,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:42:00,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:42:00,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:42:00,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:42:00,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:42:00,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:42:00,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:42:00,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:42:00,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:42:00,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:42:00,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:42:00,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:42:00,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:42:00,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:42:00,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:42:00,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:42:00,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:42:00,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:42:00,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:42:00,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:42:00,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:42:00,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:42:00,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:42:00,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:42:00,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:42:00,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:42:00,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:42:00,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:42:00,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:42:00,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:42:00,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:42:00,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:42:00,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:42:00,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:42:00,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:42:00,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:42:00,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:42:00,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:42:00,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:42:00,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:42:00,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:42:00,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:42:00,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:42:00,321 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:42:00,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:42:00,322 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:42:00,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:42:00,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:42:00,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:42:00,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:42:00,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:42:00,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:42:00,324 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:42:00,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:42:00,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:42:00,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:42:00,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:42:00,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:42:00,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:42:00,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:42:00,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:00,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:42:00,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:42:00,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:42:00,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:42:00,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:42:00,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:42:00,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:42:00,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:42:00,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:42:00,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:42:00,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:42:00,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:42:00,786 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:42:00,789 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c [2020-09-25 00:42:00,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb27d7f74/b2dfb994778e46ae974b0d6fb3f1cc48/FLAGcbe9fc2c6 [2020-09-25 00:42:01,487 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:42:01,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c [2020-09-25 00:42:01,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb27d7f74/b2dfb994778e46ae974b0d6fb3f1cc48/FLAGcbe9fc2c6 [2020-09-25 00:42:01,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb27d7f74/b2dfb994778e46ae974b0d6fb3f1cc48 [2020-09-25 00:42:01,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:42:01,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:42:01,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:01,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:42:01,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:42:01,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:01" (1/1) ... [2020-09-25 00:42:01,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:01, skipping insertion in model container [2020-09-25 00:42:01,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:01" (1/1) ... [2020-09-25 00:42:01,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:42:01,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:42:02,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:02,341 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:42:02,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:02,452 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:42:02,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02 WrapperNode [2020-09-25 00:42:02,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:02,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:42:02,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:42:02,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:42:02,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (1/1) ... [2020-09-25 00:42:02,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (1/1) ... [2020-09-25 00:42:02,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (1/1) ... [2020-09-25 00:42:02,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (1/1) ... [2020-09-25 00:42:02,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (1/1) ... [2020-09-25 00:42:02,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (1/1) ... [2020-09-25 00:42:02,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (1/1) ... [2020-09-25 00:42:02,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:42:02,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:42:02,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:42:02,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:42:02,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:42:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:42:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:42:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:42:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:42:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:42:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:42:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:42:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:42:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:42:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:42:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 00:42:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:42:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:42:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:42:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:42:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:42:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:42:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:42:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:42:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:42:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:42:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:42:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:42:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:42:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:42:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:42:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:42:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:42:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:42:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:42:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:42:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:42:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:42:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:42:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:42:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:42:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:42:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:42:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:42:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:42:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:42:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:42:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:42:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:42:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:42:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:42:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:42:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:42:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:42:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:42:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:42:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:42:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:42:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 00:42:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:42:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:42:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:42:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:42:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:42:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:42:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:42:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:42:02,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:42:02,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:42:02,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:42:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:42:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:42:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:42:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:42:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:42:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:42:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:42:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:42:03,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:42:03,716 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:42:03,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:03 BoogieIcfgContainer [2020-09-25 00:42:03,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:42:03,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:42:03,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:42:03,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:42:03,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:42:01" (1/3) ... [2020-09-25 00:42:03,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7503a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:03, skipping insertion in model container [2020-09-25 00:42:03,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:02" (2/3) ... [2020-09-25 00:42:03,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7503a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:03, skipping insertion in model container [2020-09-25 00:42:03,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:03" (3/3) ... [2020-09-25 00:42:03,732 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product09.cil.c [2020-09-25 00:42:03,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:42:03,752 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:42:03,773 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:42:03,806 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:42:03,806 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:42:03,806 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:42:03,806 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:42:03,806 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:42:03,807 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:42:03,807 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:42:03,807 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:42:03,832 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states. [2020-09-25 00:42:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:42:03,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:03,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:03,849 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:03,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:03,855 INFO L82 PathProgramCache]: Analyzing trace with hash -2059425041, now seen corresponding path program 1 times [2020-09-25 00:42:03,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:03,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253706748] [2020-09-25 00:42:03,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:04,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:04,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:08,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:08,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:42:08,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:08,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4259 [2020-09-25 00:42:08,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:08,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:08,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:42:08,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:08,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:42:09,049 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:09,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:09,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:09,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:09,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 00:42:09,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:09,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:09,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:09,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:09,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:09,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:09,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:09,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:09,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:09,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:09,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:09,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:09,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:09,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:09,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:09,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:09,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:09,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:09,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:09,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:09,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:09,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:09,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:09,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:09,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:09,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:09,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:09,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:09,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:09,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:09,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:09,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:42:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:09,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:09,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:09,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:09,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:09,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:09,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:09,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:42:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:09,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:09,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:09,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:09,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:42:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:09,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:09,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:09,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:09,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:09,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:09,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:09,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253706748] [2020-09-25 00:42:09,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:09,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:42:09,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501442316] [2020-09-25 00:42:09,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:42:09,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:09,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:42:09,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:09,384 INFO L87 Difference]: Start difference. First operand 268 states. Second operand 3 states. [2020-09-25 00:42:10,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:10,445 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions. [2020-09-25 00:42:10,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:42:10,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:42:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:10,467 INFO L225 Difference]: With dead ends: 365 [2020-09-25 00:42:10,467 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 00:42:10,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 00:42:10,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-09-25 00:42:10,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-09-25 00:42:10,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 215 transitions. [2020-09-25 00:42:10,566 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 215 transitions. Word has length 153 [2020-09-25 00:42:10,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:10,567 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 215 transitions. [2020-09-25 00:42:10,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:42:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 215 transitions. [2020-09-25 00:42:10,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:42:10,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:10,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:10,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:42:10,573 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:10,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:10,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1720620052, now seen corresponding path program 1 times [2020-09-25 00:42:10,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:10,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966427984] [2020-09-25 00:42:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:10,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:10,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:11,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:15,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:15,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:42:15,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:15,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 00:42:15,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:15,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:15,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:42:15,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:42:15,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:15,973 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:15,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:15,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:16,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:16,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:16,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 00:42:16,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:16,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:16,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:16,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:16,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:16,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:16,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:16,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:16,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:16,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:16,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:16,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:16,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:16,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:16,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:16,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:16,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:16,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:16,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:16,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:16,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:16,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:16,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:16,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:16,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:16,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:16,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:16,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:16,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:16,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:42:16,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:16,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:16,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:16,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:16,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:42:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:16,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:16,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:16,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:16,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:16,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:16,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:42:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:16,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:16,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:16,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:16,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:16,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:16,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:16,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:16,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:16,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:16,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:42:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:16,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:16,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:16,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:16,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:16,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:16,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:16,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:16,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:16,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966427984] [2020-09-25 00:42:16,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:16,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:42:16,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184519712] [2020-09-25 00:42:16,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:42:16,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:16,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:42:16,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:42:16,264 INFO L87 Difference]: Start difference. First operand 201 states and 215 transitions. Second operand 4 states. [2020-09-25 00:42:16,908 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:42:17,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:17,520 INFO L93 Difference]: Finished difference Result 282 states and 313 transitions. [2020-09-25 00:42:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:42:17,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:42:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:17,528 INFO L225 Difference]: With dead ends: 282 [2020-09-25 00:42:17,528 INFO L226 Difference]: Without dead ends: 221 [2020-09-25 00:42:17,533 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 [2020-09-25 00:42:17,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-25 00:42:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-25 00:42:17,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 00:42:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2020-09-25 00:42:17,592 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 154 [2020-09-25 00:42:17,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:17,595 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2020-09-25 00:42:17,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:42:17,595 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2020-09-25 00:42:17,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 00:42:17,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:17,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:17,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:42:17,604 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:17,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:17,605 INFO L82 PathProgramCache]: Analyzing trace with hash 2141035662, now seen corresponding path program 1 times [2020-09-25 00:42:17,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:17,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351518603] [2020-09-25 00:42:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:17,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:17,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:20,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:20,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 00:42:20,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:42:20,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2782 [2020-09-25 00:42:20,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:20,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:42:20,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 00:42:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 00:42:20,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:20,753 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:20,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:20,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:21,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 00:42:21,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 00:42:21,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:21,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:21,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:21,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:21,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:21,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:21,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:21,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:42:21,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:21,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:21,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:21,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:21,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:21,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:21,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:42:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:21,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:21,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:21,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:21,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:42:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:21,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:42:21,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:42:21,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:21,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:21,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:21,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 00:42:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:21,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:21,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:21,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:21,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:21,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:21,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:21,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:21,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:21,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:21,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:21,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:21,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351518603] [2020-09-25 00:42:21,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:21,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:42:21,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249061619] [2020-09-25 00:42:21,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:42:21,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:21,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:42:21,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:42:21,249 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand 9 states. [2020-09-25 00:42:21,840 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:23,302 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 00:42:23,909 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 00:42:24,254 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:24,580 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:42:24,867 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:42:25,189 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:42:25,473 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:42:25,834 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:42:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:26,271 INFO L93 Difference]: Finished difference Result 376 states and 435 transitions. [2020-09-25 00:42:26,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:42:26,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-25 00:42:26,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:26,279 INFO L225 Difference]: With dead ends: 376 [2020-09-25 00:42:26,279 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 00:42:26,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:42:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 00:42:26,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 265. [2020-09-25 00:42:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 00:42:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 291 transitions. [2020-09-25 00:42:26,317 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 291 transitions. Word has length 163 [2020-09-25 00:42:26,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:26,318 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 291 transitions. [2020-09-25 00:42:26,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:42:26,318 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 291 transitions. [2020-09-25 00:42:26,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 00:42:26,320 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:26,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:26,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:42:26,321 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:26,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:26,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1429262058, now seen corresponding path program 1 times [2020-09-25 00:42:26,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:26,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643525162] [2020-09-25 00:42:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:26,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:26,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:26,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 00:42:26,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:26,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-09-25 00:42:26,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:26,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 00:42:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:42:26,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:26,982 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:26,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:27,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 00:42:27,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 00:42:27,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:27,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:27,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:27,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:27,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:27,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:27,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:42:27,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:42:27,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:27,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:27,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:42:27,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 00:42:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:42:27,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:42:27,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:27,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:42:27,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 00:42:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:27,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:27,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 00:42:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:27,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:27,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:27,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 00:42:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:27,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:27,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:27,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:27,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:27,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:27,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:27,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:27,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:27,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643525162] [2020-09-25 00:42:27,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:27,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:42:27,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466541447] [2020-09-25 00:42:27,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:42:27,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:27,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:42:27,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:42:27,388 INFO L87 Difference]: Start difference. First operand 265 states and 291 transitions. Second operand 5 states. [2020-09-25 00:42:27,905 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:42:28,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:28,527 INFO L93 Difference]: Finished difference Result 467 states and 546 transitions. [2020-09-25 00:42:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:42:28,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 00:42:28,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:28,534 INFO L225 Difference]: With dead ends: 467 [2020-09-25 00:42:28,539 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 00:42:28,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:42:28,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 00:42:28,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 265. [2020-09-25 00:42:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 00:42:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 288 transitions. [2020-09-25 00:42:28,609 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 288 transitions. Word has length 168 [2020-09-25 00:42:28,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:28,611 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 288 transitions. [2020-09-25 00:42:28,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:42:28,611 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2020-09-25 00:42:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 00:42:28,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:28,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:42:28,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:42:28,614 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:28,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:28,615 INFO L82 PathProgramCache]: Analyzing trace with hash -645930008, now seen corresponding path program 1 times [2020-09-25 00:42:28,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:28,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584674659] [2020-09-25 00:42:28,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:42:28,675 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:42:28,675 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:42:28,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:42:28,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:42:28 BoogieIcfgContainer [2020-09-25 00:42:28,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:42:28,718 INFO L168 Benchmark]: Toolchain (without parser) took 26954.67 ms. Allocated memory was 141.6 MB in the beginning and 605.6 MB in the end (delta: 464.0 MB). Free memory was 102.9 MB in the beginning and 478.4 MB in the end (delta: -375.6 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:28,721 INFO L168 Benchmark]: CDTParser took 1.70 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:42:28,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.21 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 176.2 MB in the end (delta: -73.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:28,730 INFO L168 Benchmark]: Boogie Preprocessor took 93.45 ms. Allocated memory is still 205.5 MB. Free memory was 176.2 MB in the beginning and 172.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:28,731 INFO L168 Benchmark]: RCFGBuilder took 1175.50 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 172.2 MB in the beginning and 179.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:28,731 INFO L168 Benchmark]: TraceAbstraction took 24991.81 ms. Allocated memory was 234.9 MB in the beginning and 605.6 MB in the end (delta: 370.7 MB). Free memory was 179.7 MB in the beginning and 478.4 MB in the end (delta: -298.7 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:42:28,742 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.70 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.21 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 176.2 MB in the end (delta: -73.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.45 ms. Allocated memory is still 205.5 MB. Free memory was 176.2 MB in the beginning and 172.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1175.50 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 172.2 MB in the beginning and 179.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24991.81 ms. Allocated memory was 234.9 MB in the beginning and 605.6 MB in the end (delta: 370.7 MB). Free memory was 179.7 MB in the beginning and 478.4 MB in the end (delta: -298.7 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L224] int pumpRunning = 0; [L225] int systemActive = 1; [L589] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L411] int retValue_acc ; [L414] retValue_acc = 1 [L415] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L154] int splverifierCounter ; [L155] int tmp ; [L156] int tmp___0 ; [L157] int tmp___1 ; [L158] int tmp___2 ; [L161] splverifierCounter = 0 [L163] COND TRUE 1 [L165] COND TRUE splverifierCounter < 4 [L171] tmp = __VERIFIER_nondet_int() [L173] COND TRUE \read(tmp) [L175] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L175] RET waterRise() [L181] tmp___0 = __VERIFIER_nondet_int() [L183] COND FALSE !(\read(tmp___0)) [L191] tmp___2 = __VERIFIER_nondet_int() [L193] COND TRUE \read(tmp___2) [L206] CALL timeShift() [L232] COND FALSE !(\read(pumpRunning)) [L239] COND TRUE \read(systemActive) [L241] FCALL processEnvironment() [L247] CALL __utac_acc__Specification3_spec__1() [L352] int tmp ; [L353] int tmp___0 ; [L354] int tmp___1 ; [L358] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L358] RET, EXPR isMethaneLevelCritical() [L358] tmp = isMethaneLevelCritical() [L360] COND FALSE !(\read(tmp)) [L364] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L364] RET, EXPR getWaterLevel() [L364] tmp___0 = getWaterLevel() [L366] COND TRUE tmp___0 == 2 [L368] CALL, EXPR isPumpRunning() [L305] int retValue_acc ; [L308] retValue_acc = pumpRunning [L309] return (retValue_acc); [L368] RET, EXPR isPumpRunning() [L368] tmp___1 = isPumpRunning() [L370] COND FALSE !(\read(tmp___1)) [L374] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 587 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 741 SDtfs, 743 SDslu, 822 SDs, 0 SdLazy, 1407 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 144 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 259830 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...