./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:00:17,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:00:17,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:00:17,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:00:17,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:00:17,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:00:17,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:00:17,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:00:17,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:00:17,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:00:17,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:00:17,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:00:17,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:00:17,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:00:17,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:00:17,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:00:17,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:00:17,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:00:17,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:00:17,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:00:17,681 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:00:17,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:00:17,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:00:17,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:00:17,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:00:17,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:00:17,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:00:17,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:00:17,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:00:17,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:00:17,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:00:17,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:00:17,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:00:17,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:00:17,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:00:17,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:00:17,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:00:17,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:00:17,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:00:17,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:00:17,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:00:17,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:00:17,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:00:17,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:00:17,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:00:17,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:00:17,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:00:17,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:00:17,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:00:17,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:00:17,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:00:17,739 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:00:17,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:00:17,740 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:00:17,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:00:17,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:00:17,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:00:17,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:00:17,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:00:17,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:00:17,741 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:00:17,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:00:17,742 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:00:17,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:00:17,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:00:17,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:00:17,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:00:17,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:00:17,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:00:17,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:00:17,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:00:17,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:00:17,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:00:17,745 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:00:17,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:00:17,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:00:17,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f15893fb26009b2882a55698a2d895d2e3e404fcbd45ba17e1cf64b2b2b34e [2022-07-21 05:00:18,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:00:18,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:00:18,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:00:18,113 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:00:18,115 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:00:18,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2022-07-21 05:00:18,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f9a372e/5cac4bbf46a14a9d882f9a4f5867b404/FLAG614bab92e [2022-07-21 05:00:18,724 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:00:18,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2022-07-21 05:00:18,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f9a372e/5cac4bbf46a14a9d882f9a4f5867b404/FLAG614bab92e [2022-07-21 05:00:19,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f9a372e/5cac4bbf46a14a9d882f9a4f5867b404 [2022-07-21 05:00:19,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:00:19,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:00:19,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:00:19,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:00:19,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:00:19,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707ef325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19, skipping insertion in model container [2022-07-21 05:00:19,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:00:19,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:00:19,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c[17055,17068] [2022-07-21 05:00:19,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:00:19,465 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:00:19,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c[17055,17068] [2022-07-21 05:00:19,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:00:19,587 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:00:19,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19 WrapperNode [2022-07-21 05:00:19,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:00:19,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:00:19,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:00:19,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:00:19,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,636 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 245 [2022-07-21 05:00:19,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:00:19,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:00:19,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:00:19,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:00:19,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:00:19,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:00:19,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:00:19,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:00:19,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (1/1) ... [2022-07-21 05:00:19,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:00:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:00:19,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 05:00:19,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 05:00:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:00:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 05:00:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 05:00:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-21 05:00:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-21 05:00:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:00:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:00:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:00:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:00:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:00:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:00:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:00:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:00:19,803 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:00:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:00:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:00:19,884 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:00:19,886 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:00:20,188 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:00:20,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:00:20,195 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:00:20,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:20 BoogieIcfgContainer [2022-07-21 05:00:20,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:00:20,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:00:20,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:00:20,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:00:20,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:00:19" (1/3) ... [2022-07-21 05:00:20,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7421a3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:00:20, skipping insertion in model container [2022-07-21 05:00:20,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:19" (2/3) ... [2022-07-21 05:00:20,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7421a3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:00:20, skipping insertion in model container [2022-07-21 05:00:20,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:20" (3/3) ... [2022-07-21 05:00:20,205 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2022-07-21 05:00:20,218 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:00:20,243 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:00:20,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:00:20,319 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@32df2656, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7bd5f68c [2022-07-21 05:00:20,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:00:20,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 64 states have (on average 1.390625) internal successors, (89), 70 states have internal predecessors, (89), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-21 05:00:20,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 05:00:20,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:20,339 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:00:20,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:20,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:20,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1298361785, now seen corresponding path program 1 times [2022-07-21 05:00:20,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:20,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162003774] [2022-07-21 05:00:20,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:20,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:20,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:00:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:20,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:20,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162003774] [2022-07-21 05:00:20,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162003774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:20,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:20,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:00:20,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734772437] [2022-07-21 05:00:20,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:20,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:00:20,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:20,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:00:20,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:00:20,672 INFO L87 Difference]: Start difference. First operand has 82 states, 64 states have (on average 1.390625) internal successors, (89), 70 states have internal predecessors, (89), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:20,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:20,705 INFO L93 Difference]: Finished difference Result 155 states and 212 transitions. [2022-07-21 05:00:20,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:00:20,708 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-21 05:00:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:20,720 INFO L225 Difference]: With dead ends: 155 [2022-07-21 05:00:20,720 INFO L226 Difference]: Without dead ends: 73 [2022-07-21 05:00:20,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:00:20,729 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:20,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:20,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-07-21 05:00:20,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-07-21 05:00:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 62 states have internal predecessors, (75), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-21 05:00:20,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2022-07-21 05:00:20,781 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 25 [2022-07-21 05:00:20,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:20,783 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2022-07-21 05:00:20,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:20,785 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2022-07-21 05:00:20,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-21 05:00:20,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:20,789 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:00:20,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:00:20,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:20,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:20,792 INFO L85 PathProgramCache]: Analyzing trace with hash -544570962, now seen corresponding path program 1 times [2022-07-21 05:00:20,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:20,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990373030] [2022-07-21 05:00:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:20,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 05:00:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:20,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:20,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:20,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990373030] [2022-07-21 05:00:20,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990373030] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:20,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:20,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:00:20,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085394213] [2022-07-21 05:00:20,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:20,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:00:20,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:20,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:00:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:20,929 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:20,951 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2022-07-21 05:00:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:00:20,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-21 05:00:20,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:20,956 INFO L225 Difference]: With dead ends: 110 [2022-07-21 05:00:20,958 INFO L226 Difference]: Without dead ends: 64 [2022-07-21 05:00:20,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:20,966 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 13 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:20,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:20,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-21 05:00:20,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-07-21 05:00:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 56 states have internal predecessors, (68), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-21 05:00:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2022-07-21 05:00:20,984 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 26 [2022-07-21 05:00:20,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:20,988 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2022-07-21 05:00:20,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2022-07-21 05:00:20,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-21 05:00:20,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:20,991 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:00:20,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:00:20,992 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:20,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:20,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2042208755, now seen corresponding path program 1 times [2022-07-21 05:00:20,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:20,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575506225] [2022-07-21 05:00:20,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:20,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 05:00:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:21,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:21,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575506225] [2022-07-21 05:00:21,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575506225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:21,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:21,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:00:21,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63810749] [2022-07-21 05:00:21,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:21,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:00:21,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:21,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:00:21,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:00:21,123 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:21,217 INFO L93 Difference]: Finished difference Result 120 states and 157 transitions. [2022-07-21 05:00:21,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:00:21,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-21 05:00:21,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:21,222 INFO L225 Difference]: With dead ends: 120 [2022-07-21 05:00:21,223 INFO L226 Difference]: Without dead ends: 64 [2022-07-21 05:00:21,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:00:21,226 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 109 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:21,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 191 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:21,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-21 05:00:21,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-07-21 05:00:21,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 56 states have internal predecessors, (67), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-21 05:00:21,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2022-07-21 05:00:21,244 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 31 [2022-07-21 05:00:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:21,245 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2022-07-21 05:00:21,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:00:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2022-07-21 05:00:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 05:00:21,248 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:21,249 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:00:21,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:00:21,249 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:21,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:21,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1332459068, now seen corresponding path program 1 times [2022-07-21 05:00:21,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:21,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489895766] [2022-07-21 05:00:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:21,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 05:00:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 05:00:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:21,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:21,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489895766] [2022-07-21 05:00:21,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489895766] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:21,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:21,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:00:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738051658] [2022-07-21 05:00:21,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:21,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:00:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:21,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:00:21,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:21,337 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:21,388 INFO L93 Difference]: Finished difference Result 161 states and 208 transitions. [2022-07-21 05:00:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:00:21,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-07-21 05:00:21,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:21,391 INFO L225 Difference]: With dead ends: 161 [2022-07-21 05:00:21,391 INFO L226 Difference]: Without dead ends: 105 [2022-07-21 05:00:21,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:21,393 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 53 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:21,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 147 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:21,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-21 05:00:21,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2022-07-21 05:00:21,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 81 states have (on average 1.308641975308642) internal successors, (106), 88 states have internal predecessors, (106), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-21 05:00:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2022-07-21 05:00:21,408 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 36 [2022-07-21 05:00:21,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:21,409 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-07-21 05:00:21,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,409 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2022-07-21 05:00:21,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-21 05:00:21,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:21,412 INFO L195 NwaCegarLoop]: 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] [2022-07-21 05:00:21,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:00:21,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:21,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:21,414 INFO L85 PathProgramCache]: Analyzing trace with hash -491826932, now seen corresponding path program 1 times [2022-07-21 05:00:21,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:21,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403274693] [2022-07-21 05:00:21,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:21,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 05:00:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 05:00:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:21,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:21,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403274693] [2022-07-21 05:00:21,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403274693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:21,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:21,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:00:21,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144575692] [2022-07-21 05:00:21,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:21,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:00:21,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:21,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:00:21,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:00:21,532 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:21,585 INFO L93 Difference]: Finished difference Result 203 states and 260 transitions. [2022-07-21 05:00:21,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:00:21,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-07-21 05:00:21,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:21,588 INFO L225 Difference]: With dead ends: 203 [2022-07-21 05:00:21,588 INFO L226 Difference]: Without dead ends: 108 [2022-07-21 05:00:21,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:00:21,594 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 43 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:21,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 335 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:21,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-07-21 05:00:21,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2022-07-21 05:00:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.2875) internal successors, (103), 87 states have internal predecessors, (103), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-21 05:00:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2022-07-21 05:00:21,606 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 42 [2022-07-21 05:00:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:21,607 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2022-07-21 05:00:21,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2022-07-21 05:00:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 05:00:21,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:21,608 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:21,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:00:21,609 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:21,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:21,609 INFO L85 PathProgramCache]: Analyzing trace with hash 552716463, now seen corresponding path program 1 times [2022-07-21 05:00:21,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:21,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781286471] [2022-07-21 05:00:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:21,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 05:00:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 05:00:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 05:00:21,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:21,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781286471] [2022-07-21 05:00:21,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781286471] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:21,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:21,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:00:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167942705] [2022-07-21 05:00:21,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:21,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:00:21,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:21,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:00:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:00:21,667 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:21,704 INFO L93 Difference]: Finished difference Result 220 states and 282 transitions. [2022-07-21 05:00:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:00:21,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-21 05:00:21,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:21,706 INFO L225 Difference]: With dead ends: 220 [2022-07-21 05:00:21,706 INFO L226 Difference]: Without dead ends: 126 [2022-07-21 05:00:21,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:00:21,707 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 33 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:21,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 355 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:21,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-07-21 05:00:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 105. [2022-07-21 05:00:21,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 90 states have internal predecessors, (106), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-21 05:00:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2022-07-21 05:00:21,719 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 48 [2022-07-21 05:00:21,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:21,719 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2022-07-21 05:00:21,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,720 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2022-07-21 05:00:21,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 05:00:21,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:21,721 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:21,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:00:21,721 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:21,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash 693265073, now seen corresponding path program 1 times [2022-07-21 05:00:21,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:21,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007394595] [2022-07-21 05:00:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:21,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 05:00:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 05:00:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 05:00:21,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:21,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007394595] [2022-07-21 05:00:21,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007394595] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:21,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:21,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:00:21,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472930357] [2022-07-21 05:00:21,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:21,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:00:21,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:21,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:00:21,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:00:21,784 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:21,828 INFO L93 Difference]: Finished difference Result 229 states and 292 transitions. [2022-07-21 05:00:21,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:00:21,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-21 05:00:21,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:21,830 INFO L225 Difference]: With dead ends: 229 [2022-07-21 05:00:21,830 INFO L226 Difference]: Without dead ends: 132 [2022-07-21 05:00:21,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:00:21,831 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 74 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:21,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 399 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-07-21 05:00:21,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2022-07-21 05:00:21,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 92 states have internal predecessors, (108), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-21 05:00:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2022-07-21 05:00:21,842 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 48 [2022-07-21 05:00:21,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:21,842 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2022-07-21 05:00:21,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2022-07-21 05:00:21,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 05:00:21,843 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:21,844 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:21,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:00:21,844 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:21,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:21,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1678474189, now seen corresponding path program 1 times [2022-07-21 05:00:21,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:21,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632586471] [2022-07-21 05:00:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:21,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 05:00:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 05:00:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 05:00:21,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:21,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632586471] [2022-07-21 05:00:21,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632586471] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:21,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:21,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:00:21,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316668849] [2022-07-21 05:00:21,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:21,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:00:21,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:21,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:00:21,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:21,897 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:21,918 INFO L93 Difference]: Finished difference Result 248 states and 310 transitions. [2022-07-21 05:00:21,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:00:21,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-21 05:00:21,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:21,922 INFO L225 Difference]: With dead ends: 248 [2022-07-21 05:00:21,922 INFO L226 Difference]: Without dead ends: 149 [2022-07-21 05:00:21,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:21,923 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 34 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:21,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 154 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:21,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-07-21 05:00:21,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-07-21 05:00:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 118 states have (on average 1.2457627118644068) internal successors, (147), 126 states have internal predecessors, (147), 16 states have call successors, (16), 15 states have call predecessors, (16), 14 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2022-07-21 05:00:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 181 transitions. [2022-07-21 05:00:21,941 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 181 transitions. Word has length 48 [2022-07-21 05:00:21,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:21,941 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 181 transitions. [2022-07-21 05:00:21,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:00:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 181 transitions. [2022-07-21 05:00:21,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 05:00:21,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:21,943 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:21,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:00:21,943 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1903900979, now seen corresponding path program 1 times [2022-07-21 05:00:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:21,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150038282] [2022-07-21 05:00:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:00:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 05:00:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 05:00:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 05:00:22,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:22,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150038282] [2022-07-21 05:00:22,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150038282] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:22,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:22,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:00:22,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588721836] [2022-07-21 05:00:22,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:22,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:00:22,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:22,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:00:22,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:00:22,008 INFO L87 Difference]: Start difference. First operand 149 states and 181 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 05:00:22,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:22,118 INFO L93 Difference]: Finished difference Result 318 states and 401 transitions. [2022-07-21 05:00:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:00:22,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2022-07-21 05:00:22,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:22,121 INFO L225 Difference]: With dead ends: 318 [2022-07-21 05:00:22,121 INFO L226 Difference]: Without dead ends: 316 [2022-07-21 05:00:22,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:00:22,122 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 125 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:22,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 218 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:00:22,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-07-21 05:00:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 302. [2022-07-21 05:00:22,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 242 states have (on average 1.2479338842975207) internal successors, (302), 264 states have internal predecessors, (302), 34 states have call successors, (34), 22 states have call predecessors, (34), 25 states have return successors, (47), 31 states have call predecessors, (47), 34 states have call successors, (47) [2022-07-21 05:00:22,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 383 transitions. [2022-07-21 05:00:22,154 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 383 transitions. Word has length 52 [2022-07-21 05:00:22,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:22,154 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 383 transitions. [2022-07-21 05:00:22,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-21 05:00:22,155 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 383 transitions. [2022-07-21 05:00:22,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 05:00:22,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:22,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:22,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:00:22,159 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1105031866, now seen corresponding path program 1 times [2022-07-21 05:00:22,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:22,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610132875] [2022-07-21 05:00:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:22,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:00:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 05:00:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 05:00:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:00:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 05:00:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 05:00:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-21 05:00:22,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:22,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610132875] [2022-07-21 05:00:22,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610132875] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:00:22,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236090174] [2022-07-21 05:00:22,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:22,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:00:22,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:00:22,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 05:00:22,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 05:00:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:22,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 05:00:22,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:00:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 05:00:22,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:00:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 05:00:23,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236090174] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 05:00:23,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-21 05:00:23,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 5] total 13 [2022-07-21 05:00:23,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596216189] [2022-07-21 05:00:23,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:23,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:00:23,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:23,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:00:23,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-21 05:00:23,115 INFO L87 Difference]: Start difference. First operand 302 states and 383 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-21 05:00:23,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:23,236 INFO L93 Difference]: Finished difference Result 867 states and 1126 transitions. [2022-07-21 05:00:23,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 05:00:23,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 84 [2022-07-21 05:00:23,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:23,243 INFO L225 Difference]: With dead ends: 867 [2022-07-21 05:00:23,244 INFO L226 Difference]: Without dead ends: 573 [2022-07-21 05:00:23,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:00:23,246 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 46 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:23,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 384 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:00:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-07-21 05:00:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 477. [2022-07-21 05:00:23,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 378 states have (on average 1.2275132275132274) internal successors, (464), 413 states have internal predecessors, (464), 55 states have call successors, (55), 37 states have call predecessors, (55), 43 states have return successors, (77), 51 states have call predecessors, (77), 55 states have call successors, (77) [2022-07-21 05:00:23,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 596 transitions. [2022-07-21 05:00:23,294 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 596 transitions. Word has length 84 [2022-07-21 05:00:23,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:23,294 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 596 transitions. [2022-07-21 05:00:23,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-21 05:00:23,295 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 596 transitions. [2022-07-21 05:00:23,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-21 05:00:23,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:23,297 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:23,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 05:00:23,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-21 05:00:23,508 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:23,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:23,508 INFO L85 PathProgramCache]: Analyzing trace with hash -138549802, now seen corresponding path program 1 times [2022-07-21 05:00:23,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:23,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971321667] [2022-07-21 05:00:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:23,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:00:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 05:00:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 05:00:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 05:00:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:00:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 05:00:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 05:00:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-21 05:00:23,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:23,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971321667] [2022-07-21 05:00:23,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971321667] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:00:23,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858112968] [2022-07-21 05:00:23,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:23,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:00:23,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:00:23,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 05:00:23,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 05:00:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:23,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 05:00:23,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:00:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 05:00:23,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 05:00:23,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858112968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:23,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 05:00:23,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 20 [2022-07-21 05:00:23,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628552420] [2022-07-21 05:00:23,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:23,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:00:23,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:23,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:00:23,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:00:23,904 INFO L87 Difference]: Start difference. First operand 477 states and 596 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-21 05:00:24,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:24,044 INFO L93 Difference]: Finished difference Result 962 states and 1218 transitions. [2022-07-21 05:00:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:00:24,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 88 [2022-07-21 05:00:24,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:24,048 INFO L225 Difference]: With dead ends: 962 [2022-07-21 05:00:24,048 INFO L226 Difference]: Without dead ends: 493 [2022-07-21 05:00:24,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:00:24,050 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 70 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:24,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 701 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:00:24,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-07-21 05:00:24,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 392. [2022-07-21 05:00:24,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 310 states have (on average 1.2161290322580645) internal successors, (377), 333 states have internal predecessors, (377), 44 states have call successors, (44), 34 states have call predecessors, (44), 37 states have return successors, (56), 42 states have call predecessors, (56), 44 states have call successors, (56) [2022-07-21 05:00:24,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 477 transitions. [2022-07-21 05:00:24,092 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 477 transitions. Word has length 88 [2022-07-21 05:00:24,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:24,093 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 477 transitions. [2022-07-21 05:00:24,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-21 05:00:24,094 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 477 transitions. [2022-07-21 05:00:24,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 05:00:24,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:24,101 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:24,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 05:00:24,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-21 05:00:24,323 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1845093653, now seen corresponding path program 1 times [2022-07-21 05:00:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:24,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455291251] [2022-07-21 05:00:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:24,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 05:00:24,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 05:00:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 05:00:24,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 05:00:24,429 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 05:00:24,430 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:00:24,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 05:00:24,435 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:00:24,438 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:00:24,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:00:24 BoogieIcfgContainer [2022-07-21 05:00:24,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:00:24,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:00:24,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:00:24,520 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:00:24,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:20" (3/4) ... [2022-07-21 05:00:24,522 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 05:00:24,614 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:00:24,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:00:24,615 INFO L158 Benchmark]: Toolchain (without parser) took 5461.44ms. Allocated memory was 52.4MB in the beginning and 96.5MB in the end (delta: 44.0MB). Free memory was 28.7MB in the beginning and 31.4MB in the end (delta: -2.8MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2022-07-21 05:00:24,616 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:00:24,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.71ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 28.5MB in the beginning and 40.4MB in the end (delta: -11.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-07-21 05:00:24,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.05ms. Allocated memory is still 65.0MB. Free memory was 40.4MB in the beginning and 38.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:00:24,617 INFO L158 Benchmark]: Boogie Preprocessor took 55.01ms. Allocated memory is still 65.0MB. Free memory was 37.9MB in the beginning and 36.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:00:24,617 INFO L158 Benchmark]: RCFGBuilder took 504.67ms. Allocated memory is still 65.0MB. Free memory was 36.5MB in the beginning and 35.6MB in the end (delta: 849.7kB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-07-21 05:00:24,618 INFO L158 Benchmark]: TraceAbstraction took 4320.25ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 35.1MB in the beginning and 40.9MB in the end (delta: -5.8MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-07-21 05:00:24,619 INFO L158 Benchmark]: Witness Printer took 95.04ms. Allocated memory is still 96.5MB. Free memory was 40.9MB in the beginning and 31.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 05:00:24,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.71ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 28.5MB in the beginning and 40.4MB in the end (delta: -11.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.05ms. Allocated memory is still 65.0MB. Free memory was 40.4MB in the beginning and 38.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.01ms. Allocated memory is still 65.0MB. Free memory was 37.9MB in the beginning and 36.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.67ms. Allocated memory is still 65.0MB. Free memory was 36.5MB in the beginning and 35.6MB in the end (delta: 849.7kB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4320.25ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 35.1MB in the beginning and 40.9MB in the end (delta: -5.8MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 95.04ms. Allocated memory is still 96.5MB. Free memory was 40.9MB in the beginning and 31.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 854]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L496] int pumpRunning = 0; [L497] int systemActive = 1; [L676] int methAndRunningLastTime ; [L753] int cleanupTimeShifts = 4; [L860] int waterLevel = 1; [L861] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] int retValue_acc ; [L828] int tmp ; [L832] FCALL select_helpers() [L833] FCALL select_features() [L834] CALL, EXPR valid_product() [L744] int retValue_acc ; [L747] retValue_acc = 1 [L748] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L834] RET, EXPR valid_product() [L834] tmp = valid_product() [L836] COND TRUE \read(tmp) [L838] FCALL setup() [L839] CALL runTest() [L820] CALL __utac_acc__Specification2_spec__1() [L681] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L820] RET __utac_acc__Specification2_spec__1() [L821] CALL test() [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L443] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] COND TRUE waterLevel < 2 [L879] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L504] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L536] COND TRUE ! pumpRunning [L538] CALL, EXPR isHighWaterLevel() [L648] int retValue_acc ; [L649] int tmp ; [L650] int tmp___0 ; [L654] CALL, EXPR isHighWaterSensorDry() [L940] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L943] COND FALSE !(waterLevel < 2) [L947] retValue_acc = 0 [L948] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L654] RET, EXPR isHighWaterSensorDry() [L654] tmp = isHighWaterSensorDry() [L656] COND FALSE !(\read(tmp)) [L659] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L661] retValue_acc = tmp___0 [L662] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L538] RET, EXPR isHighWaterLevel() [L538] tmp = isHighWaterLevel() [L540] COND TRUE \read(tmp) [L542] CALL activatePump() [L567] int tmp ; [L571] CALL, EXPR isMethaneAlarm() [L592] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L596] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] retValue_acc = isMethaneLevelCritical() [L598] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L571] RET, EXPR isMethaneAlarm() [L571] tmp = isMethaneAlarm() [L573] COND FALSE !(\read(tmp)) [L577] CALL activatePump__wrappee__highWaterSensor() [L561] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L577] RET activatePump__wrappee__highWaterSensor() [L542] RET activatePump() [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] tmp = isMethaneLevelCritical() [L693] COND FALSE !(\read(tmp)) [L709] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L519] RET __utac_acc__Specification2_spec__2() [L476] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L453] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] COND FALSE !(\read(methaneLevelCritical)) [L893] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L453] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L504] COND TRUE \read(pumpRunning) [L506] CALL lowerWaterLevel() [L866] COND TRUE waterLevel > 0 [L867] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L506] RET lowerWaterLevel() [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L536] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L551] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] tmp = isMethaneLevelCritical() [L693] COND TRUE \read(tmp) [L695] CALL, EXPR isPumpRunning() [L603] int retValue_acc ; [L606] retValue_acc = pumpRunning [L607] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L695] RET, EXPR isPumpRunning() [L695] tmp___0 = isPumpRunning() [L697] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L698] COND FALSE !(\read(methAndRunningLastTime)) [L703] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L519] RET __utac_acc__Specification2_spec__2() [L476] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L463] CALL startSystem() [L670] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L463] RET startSystem() [L476] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L504] COND TRUE \read(pumpRunning) [L506] CALL lowerWaterLevel() [L866] COND TRUE waterLevel > 0 [L867] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L506] RET lowerWaterLevel() [L511] COND TRUE \read(systemActive) [L513] CALL processEnvironment() [L533] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L536] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L551] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L513] RET processEnvironment() [L519] CALL __utac_acc__Specification2_spec__2() [L686] int tmp ; [L687] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L691] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L899] int retValue_acc ; [L902] retValue_acc = methaneLevelCritical [L903] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L691] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L691] tmp = isMethaneLevelCritical() [L693] COND TRUE \read(tmp) [L695] CALL, EXPR isPumpRunning() [L603] int retValue_acc ; [L606] retValue_acc = pumpRunning [L607] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L695] RET, EXPR isPumpRunning() [L695] tmp___0 = isPumpRunning() [L697] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L698] COND TRUE \read(methAndRunningLastTime) [L700] CALL __automaton_fail() [L854] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 618 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 600 mSDsluCounter, 3132 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2079 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 290 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 1053 mSDtfsCounter, 290 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 388 GetRequests, 323 SyntacticMatches, 6 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=10, InterpolantAutomatonStates: 55, 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, 11 MinimizatonAttempts, 265 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 2040 SizeOfPredicates, 6 NumberOfNonLiveVariables, 904 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 152/162 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! [2022-07-21 05:00:24,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE