/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:33:27,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:33:27,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:33:28,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:33:28,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:33:28,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:33:28,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:33:28,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:33:28,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:33:28,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:33:28,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:33:28,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:33:28,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:33:28,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:33:28,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:33:28,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:33:28,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:33:28,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:33:28,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:33:28,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:33:28,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:33:28,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:33:28,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:33:28,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:33:28,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:33:28,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:33:28,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:33:28,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:33:28,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:33:28,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:33:28,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:33:28,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:33:28,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:33:28,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:33:28,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:33:28,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:33:28,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:33:28,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:33:28,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:33:28,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:33:28,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:33:28,099 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 07:33:28,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:33:28,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:33:28,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:33:28,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:33:28,152 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:33:28,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:33:28,153 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:33:28,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:33:28,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:33:28,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:33:28,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:33:28,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:33:28,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:33:28,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:33:28,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:33:28,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:33:28,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:33:28,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:33:28,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:33:28,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:33:28,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:33:28,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:33:28,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:33:28,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:33:28,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:33:28,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:33:28,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:33:28,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:33:28,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:33:28,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:33:28,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:33:28,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:33:28,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:33:28,636 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:33:28,637 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:33:28,638 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-25 07:33:28,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5e0a844a/8b4f2ccfd28a495a93897d44bef557a3/FLAG37503c0a9 [2020-09-25 07:33:29,326 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:33:29,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-25 07:33:29,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5e0a844a/8b4f2ccfd28a495a93897d44bef557a3/FLAG37503c0a9 [2020-09-25 07:33:29,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f5e0a844a/8b4f2ccfd28a495a93897d44bef557a3 [2020-09-25 07:33:29,613 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:33:29,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:33:29,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:33:29,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:33:29,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:33:29,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:33:29" (1/1) ... [2020-09-25 07:33:29,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c2817c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:29, skipping insertion in model container [2020-09-25 07:33:29,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:33:29" (1/1) ... [2020-09-25 07:33:29,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:33:29,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:33:30,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:33:30,111 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:33:30,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:33:30,408 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:33:30,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30 WrapperNode [2020-09-25 07:33:30,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:33:30,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:33:30,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:33:30,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:33:30,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (1/1) ... [2020-09-25 07:33:30,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (1/1) ... [2020-09-25 07:33:30,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (1/1) ... [2020-09-25 07:33:30,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (1/1) ... [2020-09-25 07:33:30,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (1/1) ... [2020-09-25 07:33:30,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (1/1) ... [2020-09-25 07:33:30,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (1/1) ... [2020-09-25 07:33:30,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:33:30,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:33:30,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:33:30,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:33:30,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (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 07:33:30,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:33:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:33:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:33:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:33:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:33:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:33:30,631 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:33:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:33:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:33:30,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:33:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:33:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:33:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:33:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:33:30,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:33:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:33:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:33:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:33:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:33:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:33:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:33:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:33:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:33:30,637 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:33:30,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:33:30,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:33:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:33:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:33:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:33:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:33:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:33:30,638 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:33:30,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:33:30,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:33:30,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:33:30,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:33:30,640 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:33:30,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:33:30,640 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:33:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:33:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:33:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:33:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:33:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:33:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:33:30,644 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:33:30,644 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:33:30,644 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:33:30,645 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:33:30,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:33:30,645 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:33:30,645 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:33:30,646 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:33:30,646 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:33:30,646 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:33:30,646 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:33:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:33:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:33:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:33:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:33:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:33:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:33:30,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:33:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:33:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:33:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:33:30,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:33:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:33:30,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:33:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:33:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:33:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:33:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:33:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:33:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:33:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:33:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:33:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:33:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:33:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:33:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:33:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:33:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:33:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:33:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:33:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:33:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:33:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:33:30,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:33:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:33:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:33:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:33:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:33:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:33:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:33:30,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:33:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:33:30,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:33:31,808 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:33:31,809 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:33:31,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:33:31 BoogieIcfgContainer [2020-09-25 07:33:31,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:33:31,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:33:31,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:33:31,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:33:31,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:33:29" (1/3) ... [2020-09-25 07:33:31,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2550985d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:33:31, skipping insertion in model container [2020-09-25 07:33:31,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:30" (2/3) ... [2020-09-25 07:33:31,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2550985d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:33:31, skipping insertion in model container [2020-09-25 07:33:31,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:33:31" (3/3) ... [2020-09-25 07:33:31,826 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-09-25 07:33:31,839 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:33:31,851 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:33:31,875 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:33:31,912 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:33:31,912 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:33:31,913 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:33:31,913 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:33:31,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:33:31,913 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:33:31,913 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:33:31,913 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:33:31,946 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states. [2020-09-25 07:33:31,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 07:33:31,966 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:31,967 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 07:33:31,968 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:31,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:31,977 INFO L82 PathProgramCache]: Analyzing trace with hash 71377499, now seen corresponding path program 1 times [2020-09-25 07:33:31,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:31,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582509260] [2020-09-25 07:33:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:32,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:32,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:34,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:37,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:37,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:33:37,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:33:37,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 07:33:37,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:37,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:37,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:37,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:33:37,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:37,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 07:33:37,840 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:37,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:37,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:37,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:37,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:38,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 07:33:38,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:38,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:38,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:38,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:38,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:38,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:38,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:38,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:33:38,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:38,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:38,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:38,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:38,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:38,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:38,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:38,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:38,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:38,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:38,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:38,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:38,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:38,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:38,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:38,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:38,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:38,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:38,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:33:38,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:38,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:38,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:38,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:38,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:38,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:38,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:38,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:38,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:38,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:38,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:38,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:38,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:33:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:38,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:38,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:38,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:38,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:38,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:38,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:38,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:38,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:33:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:38,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:38,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:38,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:38,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:38,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:38,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:38,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:38,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:38,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:38,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:33:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:38,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:38,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:38,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:38,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:38,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:38,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:38,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:38,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:38,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:38,171 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 07:33:38,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582509260] [2020-09-25 07:33:38,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:38,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:33:38,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48678012] [2020-09-25 07:33:38,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:33:38,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:38,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:33:38,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:33:38,204 INFO L87 Difference]: Start difference. First operand 339 states. Second operand 3 states. [2020-09-25 07:33:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:39,681 INFO L93 Difference]: Finished difference Result 534 states and 633 transitions. [2020-09-25 07:33:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:33:39,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 07:33:39,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:39,704 INFO L225 Difference]: With dead ends: 534 [2020-09-25 07:33:39,704 INFO L226 Difference]: Without dead ends: 326 [2020-09-25 07:33:39,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:33:39,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-25 07:33:39,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 282. [2020-09-25 07:33:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 07:33:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 307 transitions. [2020-09-25 07:33:39,822 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 307 transitions. Word has length 153 [2020-09-25 07:33:39,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:39,823 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 307 transitions. [2020-09-25 07:33:39,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:33:39,823 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 307 transitions. [2020-09-25 07:33:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 07:33:39,829 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:39,830 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 07:33:39,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:33:39,830 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:39,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1758648365, now seen corresponding path program 1 times [2020-09-25 07:33:39,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:39,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344360302] [2020-09-25 07:33:39,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:39,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:40,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:41,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:44,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:44,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:33:44,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:33:44,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 07:33:44,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:44,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:33:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:33:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,277 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:45,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:45,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:45,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:45,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:45,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:45,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 07:33:45,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:45,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:45,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:45,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:45,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:45,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:45,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:45,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:45,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:45,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:45,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:45,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:45,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:45,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:45,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:45,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:45,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:45,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:45,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:33:45,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:45,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:45,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:45,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:45,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:45,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:45,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:45,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:45,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:45,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:45,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:45,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:45,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:45,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:33:45,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:45,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:45,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:33:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:45,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:45,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:45,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:45,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:45,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:45,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:45,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:45,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:33:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:45,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:45,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:45,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:45,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:45,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:45,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:45,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:45,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:45,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:45,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:33:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:45,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:45,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:45,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:45,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:45,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:45,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:45,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:45,492 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 07:33:45,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [344360302] [2020-09-25 07:33:45,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:45,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:33:45,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737599843] [2020-09-25 07:33:45,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:33:45,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:45,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:33:45,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:33:45,496 INFO L87 Difference]: Start difference. First operand 282 states and 307 transitions. Second operand 4 states. [2020-09-25 07:33:46,175 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:33:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:47,400 INFO L93 Difference]: Finished difference Result 441 states and 496 transitions. [2020-09-25 07:33:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:33:47,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 07:33:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:47,409 INFO L225 Difference]: With dead ends: 441 [2020-09-25 07:33:47,410 INFO L226 Difference]: Without dead ends: 309 [2020-09-25 07:33:47,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:33:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-25 07:33:47,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 272. [2020-09-25 07:33:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-25 07:33:47,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 294 transitions. [2020-09-25 07:33:47,461 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 294 transitions. Word has length 154 [2020-09-25 07:33:47,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:47,462 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 294 transitions. [2020-09-25 07:33:47,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:33:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 294 transitions. [2020-09-25 07:33:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:33:47,467 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:47,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:33:47,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:33:47,467 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:47,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:47,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1306567739, now seen corresponding path program 1 times [2020-09-25 07:33:47,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:47,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686649224] [2020-09-25 07:33:47,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:47,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:47,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:33:50,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:33:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2944 [2020-09-25 07:33:50,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:33:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:33:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,725 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:50,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:50,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 07:33:50,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:50,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:50,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:33:50,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:50,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:33:50,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:50,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:50,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:33:50,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:50,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:50,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:50,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:50,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:50,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:33:50,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:50,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:33:50,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:50,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:50,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:50,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:50,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:50,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:50,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:50,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:33:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:50,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:51,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:51,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:33:51,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:51,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:33:51,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:51,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:51,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:33:51,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:51,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:33:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:51,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:51,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:51,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:51,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:51,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:51,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:51,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:51,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:51,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:33:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:51,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:51,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:51,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:51,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:51,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:51,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:51,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:51,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:33:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:51,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:51,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:51,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:51,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:51,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:51,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:51,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:51,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:51,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:51,103 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 07:33:51,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686649224] [2020-09-25 07:33:51,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:51,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:33:51,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596439739] [2020-09-25 07:33:51,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:33:51,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:51,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:33:51,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:33:51,108 INFO L87 Difference]: Start difference. First operand 272 states and 294 transitions. Second operand 5 states. [2020-09-25 07:33:51,559 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:53,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:33:53,566 INFO L93 Difference]: Finished difference Result 666 states and 769 transitions. [2020-09-25 07:33:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:33:53,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 07:33:53,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:33:53,572 INFO L225 Difference]: With dead ends: 666 [2020-09-25 07:33:53,572 INFO L226 Difference]: Without dead ends: 504 [2020-09-25 07:33:53,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:33:53,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-25 07:33:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 424. [2020-09-25 07:33:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-09-25 07:33:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 469 transitions. [2020-09-25 07:33:53,653 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 469 transitions. Word has length 167 [2020-09-25 07:33:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:33:53,654 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 469 transitions. [2020-09-25 07:33:53,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:33:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 469 transitions. [2020-09-25 07:33:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 07:33:53,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:33:53,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:33:53,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:33:53,659 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:33:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:33:53,660 INFO L82 PathProgramCache]: Analyzing trace with hash 189083004, now seen corresponding path program 1 times [2020-09-25 07:33:53,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:33:53,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567894197] [2020-09-25 07:33:53,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:33:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:53,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:55,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:55,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 07:33:55,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1684 [2020-09-25 07:33:55,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:55,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:33:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 07:33:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 07:33:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:55,837 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:33:55,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:33:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:55,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:33:56,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 07:33:56,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 07:33:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:33:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:56,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:56,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:56,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:33:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:56,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:56,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:56,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:56,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:33:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:56,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:56,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:33:56,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:56,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:33:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:56,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:33:56,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:56,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:56,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:33:56,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:33:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:56,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:33:56,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:56,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:33:56,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 07:33:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:56,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:56,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:33:56,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:33:56,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:56,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:56,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 07:33:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:56,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:56,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:33:56,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:33:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:33:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:33:56,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 07:33:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:33:56,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:33:56,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:33:56,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:33:56,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:33:56,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:33:56,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:33:56,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:33:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:33:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:33:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:33:56,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:33:56,300 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 07:33:56,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567894197] [2020-09-25 07:33:56,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:33:56,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:33:56,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129392392] [2020-09-25 07:33:56,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:33:56,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:33:56,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:33:56,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:33:56,303 INFO L87 Difference]: Start difference. First operand 424 states and 469 transitions. Second operand 10 states. [2020-09-25 07:33:56,941 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:33:59,087 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:33:59,425 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:33:59,800 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:34:00,178 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:34:00,538 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:34:00,846 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:34:01,150 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:34:01,637 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:34:02,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:34:02,627 INFO L93 Difference]: Finished difference Result 1150 states and 1410 transitions. [2020-09-25 07:34:02,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:34:02,628 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 07:34:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:34:02,636 INFO L225 Difference]: With dead ends: 1150 [2020-09-25 07:34:02,636 INFO L226 Difference]: Without dead ends: 836 [2020-09-25 07:34:02,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 07:34:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-25 07:34:02,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 709. [2020-09-25 07:34:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2020-09-25 07:34:02,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 808 transitions. [2020-09-25 07:34:02,780 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 808 transitions. Word has length 172 [2020-09-25 07:34:02,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:34:02,780 INFO L479 AbstractCegarLoop]: Abstraction has 709 states and 808 transitions. [2020-09-25 07:34:02,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:34:02,781 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 808 transitions. [2020-09-25 07:34:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 07:34:02,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:34:02,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:34:02,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:34:02,786 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:34:02,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:34:02,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1049977612, now seen corresponding path program 1 times [2020-09-25 07:34:02,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:34:02,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528677556] [2020-09-25 07:34:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:34:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:34:02,854 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:34:02,854 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:34:02,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:34:02,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:34:02 BoogieIcfgContainer [2020-09-25 07:34:02,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:34:02,892 INFO L168 Benchmark]: Toolchain (without parser) took 33277.29 ms. Allocated memory was 140.0 MB in the beginning and 646.4 MB in the end (delta: 506.5 MB). Free memory was 102.4 MB in the beginning and 577.8 MB in the end (delta: -475.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:34:02,894 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 07:34:02,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.10 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.7 MB in the beginning and 173.0 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:34:02,896 INFO L168 Benchmark]: Boogie Preprocessor took 109.50 ms. Allocated memory is still 203.9 MB. Free memory was 173.0 MB in the beginning and 168.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:34:02,897 INFO L168 Benchmark]: RCFGBuilder took 1294.74 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 168.9 MB in the beginning and 175.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:34:02,898 INFO L168 Benchmark]: TraceAbstraction took 31072.24 ms. Allocated memory was 237.5 MB in the beginning and 646.4 MB in the end (delta: 408.9 MB). Free memory was 175.6 MB in the beginning and 577.8 MB in the end (delta: -402.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:34:02,902 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.10 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.7 MB in the beginning and 173.0 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.50 ms. Allocated memory is still 203.9 MB. Free memory was 173.0 MB in the beginning and 168.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1294.74 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 168.9 MB in the beginning and 175.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31072.24 ms. Allocated memory was 237.5 MB in the beginning and 646.4 MB in the end (delta: 408.9 MB). Free memory was 175.6 MB in the beginning and 577.8 MB in the end (delta: -402.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 853]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 [L790] COND TRUE 1 [L792] COND TRUE splverifierCounter < 4 [L798] tmp = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp) [L802] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L802] RET waterRise() [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L759] COND FALSE !(\read(pumpRunning)) [L766] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L566] COND FALSE !(\read(pumpRunning)) [L573] COND FALSE !(\read(systemActive)) [L581] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L853] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1091 SDtfs, 1792 SDslu, 893 SDs, 0 SdLazy, 2375 SolverSat, 634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=709occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 288 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 256061 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...