./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product53.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_spec5_product53.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 e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:02:29,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:02:29,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:02:29,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:02:29,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:02:29,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:02:29,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:02:29,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:02:29,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:02:29,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:02:29,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:02:29,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:02:29,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:02:29,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:02:29,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:02:29,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:02:29,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:02:29,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:02:29,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:02:29,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:02:29,838 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:02:29,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:02:29,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:02:29,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:02:29,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:02:29,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:02:29,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:02:29,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:02:29,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:02:29,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:02:29,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:02:29,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:02:29,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:02:29,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:02:29,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:02:29,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:02:29,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:02:29,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:02:29,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:02:29,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:02:29,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:02:29,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:02:29,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:02:29,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:02:29,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:02:29,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:02:29,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:02:29,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:02:29,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:02:29,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:02:29,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:02:29,912 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:02:29,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:02:29,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:02:29,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:02:29,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:02:29,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:02:29,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:02:29,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:02:29,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:02:29,915 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:02:29,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:02:29,915 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:02:29,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:02:29,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:02:29,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:02:29,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:02:29,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:02:29,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:02:29,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:02:29,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:02:29,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:02:29,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:02:29,918 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:02:29,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:02:29,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:02:29,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2022-07-21 05:02:30,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:02:30,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:02:30,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:02:30,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:02:30,506 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:02:30,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-07-21 05:02:30,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59ccfa45e/fc17b5d7765a4d35b58f43070d764ebe/FLAGe02cafecf [2022-07-21 05:02:31,065 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:02:31,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-07-21 05:02:31,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59ccfa45e/fc17b5d7765a4d35b58f43070d764ebe/FLAGe02cafecf [2022-07-21 05:02:31,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59ccfa45e/fc17b5d7765a4d35b58f43070d764ebe [2022-07-21 05:02:31,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:02:31,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:02:31,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:02:31,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:02:31,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:02:31,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:02:31" (1/1) ... [2022-07-21 05:02:31,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a55c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:31, skipping insertion in model container [2022-07-21 05:02:31,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:02:31" (1/1) ... [2022-07-21 05:02:31,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:02:31,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:02:31,934 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_spec5_product53.cil.c[17915,17928] [2022-07-21 05:02:31,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:02:31,957 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:02:32,029 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_spec5_product53.cil.c[17915,17928] [2022-07-21 05:02:32,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:02:32,052 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:02:32,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32 WrapperNode [2022-07-21 05:02:32,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:02:32,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:02:32,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:02:32,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:02:32,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,117 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 286 [2022-07-21 05:02:32,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:02:32,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:02:32,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:02:32,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:02:32,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:02:32,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:02:32,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:02:32,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:02:32,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (1/1) ... [2022-07-21 05:02:32,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:02:32,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:02:32,203 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 05:02:32,225 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 05:02:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:02:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 05:02:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 05:02:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:02:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:02:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:02:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:02:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-21 05:02:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-21 05:02:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:02:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:02:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-21 05:02:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-21 05:02:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-07-21 05:02:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-07-21 05:02:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-21 05:02:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-21 05:02:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:02:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:02:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:02:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:02:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:02:32,309 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:02:32,311 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:02:32,600 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:02:32,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:02:32,618 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:02:32,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:02:32 BoogieIcfgContainer [2022-07-21 05:02:32,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:02:32,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:02:32,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:02:32,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:02:32,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:02:31" (1/3) ... [2022-07-21 05:02:32,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:02:32, skipping insertion in model container [2022-07-21 05:02:32,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:02:32" (2/3) ... [2022-07-21 05:02:32,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:02:32, skipping insertion in model container [2022-07-21 05:02:32,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:02:32" (3/3) ... [2022-07-21 05:02:32,626 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2022-07-21 05:02:32,636 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:02:32,636 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:02:32,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:02:32,710 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@285f6674, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@15ad83f4 [2022-07-21 05:02:32,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:02:32,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-21 05:02:32,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-21 05:02:32,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:32,736 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] [2022-07-21 05:02:32,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:32,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:32,740 INFO L85 PathProgramCache]: Analyzing trace with hash 836117038, now seen corresponding path program 1 times [2022-07-21 05:02:32,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:32,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065909642] [2022-07-21 05:02:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:32,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:32,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 05:02:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 05:02:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:32,990 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 05:02:32,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:32,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065909642] [2022-07-21 05:02:32,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065909642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:32,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:32,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:02:32,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23748148] [2022-07-21 05:02:32,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:32,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:02:32,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:33,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:02:33,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:02:33,023 INFO L87 Difference]: Start difference. First operand has 105 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:02:33,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:33,068 INFO L93 Difference]: Finished difference Result 201 states and 272 transitions. [2022-07-21 05:02:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:02:33,069 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-07-21 05:02:33,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:33,081 INFO L225 Difference]: With dead ends: 201 [2022-07-21 05:02:33,082 INFO L226 Difference]: Without dead ends: 96 [2022-07-21 05:02:33,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 05:02:33,089 INFO L413 NwaCegarLoop]: 133 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, 133 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 05:02:33,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:02:33,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-21 05:02:33,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-21 05:02:33,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 80 states have internal predecessors, (93), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-21 05:02:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2022-07-21 05:02:33,141 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 32 [2022-07-21 05:02:33,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:33,142 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-07-21 05:02:33,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:02:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2022-07-21 05:02:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-21 05:02:33,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:33,150 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] [2022-07-21 05:02:33,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:02:33,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:33,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:33,152 INFO L85 PathProgramCache]: Analyzing trace with hash 485124754, now seen corresponding path program 1 times [2022-07-21 05:02:33,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:33,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781647219] [2022-07-21 05:02:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:33,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 05:02:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 05:02:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,263 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 05:02:33,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:33,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781647219] [2022-07-21 05:02:33,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781647219] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:33,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:33,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:02:33,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104880221] [2022-07-21 05:02:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:33,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:02:33,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:33,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:02:33,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:02:33,271 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-21 05:02:33,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:33,305 INFO L93 Difference]: Finished difference Result 184 states and 243 transitions. [2022-07-21 05:02:33,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:02:33,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-07-21 05:02:33,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:33,310 INFO L225 Difference]: With dead ends: 184 [2022-07-21 05:02:33,310 INFO L226 Difference]: Without dead ends: 96 [2022-07-21 05:02:33,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 05:02:33,314 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 101 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 122 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 05:02:33,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:02:33,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-21 05:02:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-21 05:02:33,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.295774647887324) internal successors, (92), 80 states have internal predecessors, (92), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-21 05:02:33,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 123 transitions. [2022-07-21 05:02:33,331 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 123 transitions. Word has length 37 [2022-07-21 05:02:33,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:33,333 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 123 transitions. [2022-07-21 05:02:33,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-21 05:02:33,333 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 123 transitions. [2022-07-21 05:02:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-21 05:02:33,334 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:33,334 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] [2022-07-21 05:02:33,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:02:33,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash 88830114, now seen corresponding path program 1 times [2022-07-21 05:02:33,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:33,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192416856] [2022-07-21 05:02:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:33,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 05:02:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 05:02:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 05:02:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,384 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 05:02:33,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:33,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192416856] [2022-07-21 05:02:33,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192416856] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:33,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:33,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:02:33,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321984173] [2022-07-21 05:02:33,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:33,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:02:33,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:33,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:02:33,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:02:33,388 INFO L87 Difference]: Start difference. First operand 96 states and 123 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 05:02:33,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:33,614 INFO L93 Difference]: Finished difference Result 288 states and 392 transitions. [2022-07-21 05:02:33,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:02:33,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-07-21 05:02:33,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:33,619 INFO L225 Difference]: With dead ends: 288 [2022-07-21 05:02:33,619 INFO L226 Difference]: Without dead ends: 200 [2022-07-21 05:02:33,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 05:02:33,624 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 186 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:33,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 285 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:02:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-07-21 05:02:33,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 182. [2022-07-21 05:02:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 135 states have (on average 1.2740740740740741) internal successors, (172), 143 states have internal predecessors, (172), 26 states have call successors, (26), 17 states have call predecessors, (26), 20 states have return successors, (43), 26 states have call predecessors, (43), 24 states have call successors, (43) [2022-07-21 05:02:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 241 transitions. [2022-07-21 05:02:33,653 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 241 transitions. Word has length 46 [2022-07-21 05:02:33,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:33,653 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 241 transitions. [2022-07-21 05:02:33,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 05:02:33,654 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 241 transitions. [2022-07-21 05:02:33,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 05:02:33,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:33,656 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 05:02:33,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:02:33,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:33,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:33,657 INFO L85 PathProgramCache]: Analyzing trace with hash 385655368, now seen corresponding path program 1 times [2022-07-21 05:02:33,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:33,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058077670] [2022-07-21 05:02:33,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:33,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 05:02:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 05:02:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 05:02:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,735 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 05:02:33,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:33,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058077670] [2022-07-21 05:02:33,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058077670] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:33,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:33,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:02:33,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872075617] [2022-07-21 05:02:33,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:33,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 05:02:33,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:33,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 05:02:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:02:33,737 INFO L87 Difference]: Start difference. First operand 182 states and 241 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 05:02:33,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:33,821 INFO L93 Difference]: Finished difference Result 304 states and 389 transitions. [2022-07-21 05:02:33,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 05:02:33,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2022-07-21 05:02:33,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:33,824 INFO L225 Difference]: With dead ends: 304 [2022-07-21 05:02:33,824 INFO L226 Difference]: Without dead ends: 166 [2022-07-21 05:02:33,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 05:02:33,831 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 72 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:33,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 237 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:02:33,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-07-21 05:02:33,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2022-07-21 05:02:33,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 123 states have (on average 1.2845528455284554) internal successors, (158), 131 states have internal predecessors, (158), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2022-07-21 05:02:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 209 transitions. [2022-07-21 05:02:33,850 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 209 transitions. Word has length 52 [2022-07-21 05:02:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:33,851 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 209 transitions. [2022-07-21 05:02:33,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 05:02:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 209 transitions. [2022-07-21 05:02:33,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 05:02:33,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:33,854 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, 1, 1, 1, 1] [2022-07-21 05:02:33,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:02:33,854 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:33,855 INFO L85 PathProgramCache]: Analyzing trace with hash -2065653903, now seen corresponding path program 1 times [2022-07-21 05:02:33,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:33,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493235213] [2022-07-21 05:02:33,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:33,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 05:02:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 05:02:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 05:02:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:33,916 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 05:02:33,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:33,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493235213] [2022-07-21 05:02:33,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493235213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:33,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:33,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:02:33,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500713141] [2022-07-21 05:02:33,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:33,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:02:33,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:33,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:02:33,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:02:33,919 INFO L87 Difference]: Start difference. First operand 164 states and 209 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 05:02:34,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:34,071 INFO L93 Difference]: Finished difference Result 328 states and 426 transitions. [2022-07-21 05:02:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:02:34,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-07-21 05:02:34,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:34,073 INFO L225 Difference]: With dead ends: 328 [2022-07-21 05:02:34,073 INFO L226 Difference]: Without dead ends: 172 [2022-07-21 05:02:34,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-21 05:02:34,074 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 73 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:34,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 449 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:02:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-07-21 05:02:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2022-07-21 05:02:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 126 states have (on average 1.2777777777777777) internal successors, (161), 134 states have internal predecessors, (161), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2022-07-21 05:02:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 212 transitions. [2022-07-21 05:02:34,083 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 212 transitions. Word has length 56 [2022-07-21 05:02:34,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:34,083 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 212 transitions. [2022-07-21 05:02:34,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 05:02:34,084 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 212 transitions. [2022-07-21 05:02:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 05:02:34,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:34,084 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, 1, 1, 1, 1] [2022-07-21 05:02:34,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:02:34,085 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:34,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:34,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1642952077, now seen corresponding path program 1 times [2022-07-21 05:02:34,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:34,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422275774] [2022-07-21 05:02:34,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:34,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 05:02:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 05:02:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 05:02:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,127 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 05:02:34,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:34,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422275774] [2022-07-21 05:02:34,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422275774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:34,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:34,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:02:34,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735560528] [2022-07-21 05:02:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:34,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:02:34,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:34,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:02:34,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:02:34,131 INFO L87 Difference]: Start difference. First operand 167 states and 212 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 05:02:34,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:34,228 INFO L93 Difference]: Finished difference Result 336 states and 440 transitions. [2022-07-21 05:02:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:02:34,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-07-21 05:02:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:34,237 INFO L225 Difference]: With dead ends: 336 [2022-07-21 05:02:34,237 INFO L226 Difference]: Without dead ends: 177 [2022-07-21 05:02:34,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 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 05:02:34,238 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 77 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:34,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 350 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:02:34,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-07-21 05:02:34,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2022-07-21 05:02:34,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 128 states have (on average 1.2734375) internal successors, (163), 136 states have internal predecessors, (163), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2022-07-21 05:02:34,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2022-07-21 05:02:34,247 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 56 [2022-07-21 05:02:34,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:34,248 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2022-07-21 05:02:34,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 05:02:34,248 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2022-07-21 05:02:34,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 05:02:34,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:34,249 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, 1, 1, 1, 1] [2022-07-21 05:02:34,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:02:34,249 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:34,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:34,250 INFO L85 PathProgramCache]: Analyzing trace with hash 846576885, now seen corresponding path program 1 times [2022-07-21 05:02:34,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:34,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086964106] [2022-07-21 05:02:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:34,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 05:02:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 05:02:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 05:02:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,304 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 05:02:34,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:34,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086964106] [2022-07-21 05:02:34,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086964106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:34,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:34,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:02:34,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001735979] [2022-07-21 05:02:34,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:34,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:02:34,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:34,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:02:34,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:02:34,306 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-21 05:02:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:34,514 INFO L93 Difference]: Finished difference Result 477 states and 626 transitions. [2022-07-21 05:02:34,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:02:34,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2022-07-21 05:02:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:34,517 INFO L225 Difference]: With dead ends: 477 [2022-07-21 05:02:34,517 INFO L226 Difference]: Without dead ends: 316 [2022-07-21 05:02:34,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:02:34,519 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 232 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:34,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 361 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:02:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-07-21 05:02:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 308. [2022-07-21 05:02:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 231 states have (on average 1.2467532467532467) internal successors, (288), 243 states have internal predecessors, (288), 40 states have call successors, (40), 33 states have call predecessors, (40), 36 states have return successors, (66), 41 states have call predecessors, (66), 40 states have call successors, (66) [2022-07-21 05:02:34,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 394 transitions. [2022-07-21 05:02:34,537 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 394 transitions. Word has length 56 [2022-07-21 05:02:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:34,537 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 394 transitions. [2022-07-21 05:02:34,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-21 05:02:34,537 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 394 transitions. [2022-07-21 05:02:34,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 05:02:34,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:34,538 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, 1, 1, 1, 1, 1, 1] [2022-07-21 05:02:34,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:02:34,539 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1874240715, now seen corresponding path program 1 times [2022-07-21 05:02:34,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:34,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684373334] [2022-07-21 05:02:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:34,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 05:02:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 05:02:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 05:02:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 05:02:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 05:02:34,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:34,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684373334] [2022-07-21 05:02:34,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684373334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:34,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:34,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:02:34,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30267457] [2022-07-21 05:02:34,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:34,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:02:34,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:34,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:02:34,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:02:34,615 INFO L87 Difference]: Start difference. First operand 308 states and 394 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 05:02:34,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:34,841 INFO L93 Difference]: Finished difference Result 624 states and 811 transitions. [2022-07-21 05:02:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:02:34,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2022-07-21 05:02:34,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:34,844 INFO L225 Difference]: With dead ends: 624 [2022-07-21 05:02:34,844 INFO L226 Difference]: Without dead ends: 324 [2022-07-21 05:02:34,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:02:34,846 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 125 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:34,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 492 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:02:34,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-07-21 05:02:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 304. [2022-07-21 05:02:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 227 states have (on average 1.2158590308370043) internal successors, (276), 239 states have internal predecessors, (276), 40 states have call successors, (40), 33 states have call predecessors, (40), 36 states have return successors, (66), 41 states have call predecessors, (66), 40 states have call successors, (66) [2022-07-21 05:02:34,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 382 transitions. [2022-07-21 05:02:34,863 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 382 transitions. Word has length 58 [2022-07-21 05:02:34,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:34,863 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 382 transitions. [2022-07-21 05:02:34,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 05:02:34,864 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 382 transitions. [2022-07-21 05:02:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-21 05:02:34,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:34,864 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:02:34,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:02:34,865 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:34,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:34,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1421347697, now seen corresponding path program 1 times [2022-07-21 05:02:34,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:34,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421843132] [2022-07-21 05:02:34,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:34,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:02:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:02:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 05:02:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 05:02:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:34,975 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 05:02:34,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:34,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421843132] [2022-07-21 05:02:34,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421843132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:34,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:34,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 05:02:34,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456370080] [2022-07-21 05:02:34,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:34,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 05:02:34,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:34,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 05:02:34,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-21 05:02:34,977 INFO L87 Difference]: Start difference. First operand 304 states and 382 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-21 05:02:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:35,925 INFO L93 Difference]: Finished difference Result 950 states and 1254 transitions. [2022-07-21 05:02:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-21 05:02:35,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2022-07-21 05:02:35,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:35,929 INFO L225 Difference]: With dead ends: 950 [2022-07-21 05:02:35,929 INFO L226 Difference]: Without dead ends: 709 [2022-07-21 05:02:35,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2022-07-21 05:02:35,930 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 552 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:35,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 884 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 05:02:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-07-21 05:02:35,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 585. [2022-07-21 05:02:35,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 437 states have (on average 1.2151029748283753) internal successors, (531), 463 states have internal predecessors, (531), 77 states have call successors, (77), 58 states have call predecessors, (77), 70 states have return successors, (127), 79 states have call predecessors, (127), 77 states have call successors, (127) [2022-07-21 05:02:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 735 transitions. [2022-07-21 05:02:35,953 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 735 transitions. Word has length 60 [2022-07-21 05:02:35,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:35,953 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 735 transitions. [2022-07-21 05:02:35,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-21 05:02:35,953 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 735 transitions. [2022-07-21 05:02:35,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-21 05:02:35,954 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:35,955 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:02:35,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:02:35,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:35,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:35,955 INFO L85 PathProgramCache]: Analyzing trace with hash 118762499, now seen corresponding path program 1 times [2022-07-21 05:02:35,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:35,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849160568] [2022-07-21 05:02:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:35,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:02:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:02:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 05:02:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:36,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:36,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 05:02:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:36,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 05:02:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 05:02:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:36,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:36,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 05:02:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 05:02:36,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:36,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849160568] [2022-07-21 05:02:36,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849160568] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:02:36,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396347962] [2022-07-21 05:02:36,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:36,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:02:36,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:02:36,031 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 05:02:36,068 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 05:02:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:36,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 05:02:36,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:02:36,320 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:02:36,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:02:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-21 05:02:36,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396347962] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:02:36,459 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:02:36,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2022-07-21 05:02:36,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145245456] [2022-07-21 05:02:36,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:02:36,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 05:02:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 05:02:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 05:02:36,460 INFO L87 Difference]: Start difference. First operand 585 states and 735 transitions. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-21 05:02:37,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:37,181 INFO L93 Difference]: Finished difference Result 1239 states and 1603 transitions. [2022-07-21 05:02:37,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-21 05:02:37,182 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 109 [2022-07-21 05:02:37,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:37,185 INFO L225 Difference]: With dead ends: 1239 [2022-07-21 05:02:37,185 INFO L226 Difference]: Without dead ends: 715 [2022-07-21 05:02:37,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=269, Invalid=921, Unknown=0, NotChecked=0, Total=1190 [2022-07-21 05:02:37,187 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 342 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:37,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1371 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:02:37,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2022-07-21 05:02:37,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 641. [2022-07-21 05:02:37,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 475 states have (on average 1.2) internal successors, (570), 507 states have internal predecessors, (570), 86 states have call successors, (86), 71 states have call predecessors, (86), 79 states have return successors, (114), 83 states have call predecessors, (114), 86 states have call successors, (114) [2022-07-21 05:02:37,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 770 transitions. [2022-07-21 05:02:37,214 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 770 transitions. Word has length 109 [2022-07-21 05:02:37,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:37,214 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 770 transitions. [2022-07-21 05:02:37,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-21 05:02:37,214 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 770 transitions. [2022-07-21 05:02:37,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-21 05:02:37,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:37,217 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 05:02:37,250 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 05:02:37,435 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 05:02:37,435 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1755329041, now seen corresponding path program 1 times [2022-07-21 05:02:37,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:37,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442548043] [2022-07-21 05:02:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:37,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:02:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:02:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 05:02:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 05:02:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 05:02:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 05:02:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 05:02:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-21 05:02:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 05:02:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 05:02:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-07-21 05:02:37,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:37,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442548043] [2022-07-21 05:02:37,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442548043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:02:37,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:02:37,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 05:02:37,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595649927] [2022-07-21 05:02:37,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:02:37,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 05:02:37,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:37,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 05:02:37,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-21 05:02:37,621 INFO L87 Difference]: Start difference. First operand 641 states and 770 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 05:02:38,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:38,276 INFO L93 Difference]: Finished difference Result 1786 states and 2182 transitions. [2022-07-21 05:02:38,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-21 05:02:38,277 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 191 [2022-07-21 05:02:38,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:38,281 INFO L225 Difference]: With dead ends: 1786 [2022-07-21 05:02:38,281 INFO L226 Difference]: Without dead ends: 1153 [2022-07-21 05:02:38,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 05:02:38,283 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 509 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:38,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 754 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:02:38,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-07-21 05:02:38,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1138. [2022-07-21 05:02:38,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 849 states have (on average 1.16489988221437) internal successors, (989), 897 states have internal predecessors, (989), 149 states have call successors, (149), 128 states have call predecessors, (149), 139 states have return successors, (195), 146 states have call predecessors, (195), 149 states have call successors, (195) [2022-07-21 05:02:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1333 transitions. [2022-07-21 05:02:38,327 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1333 transitions. Word has length 191 [2022-07-21 05:02:38,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:38,327 INFO L495 AbstractCegarLoop]: Abstraction has 1138 states and 1333 transitions. [2022-07-21 05:02:38,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-21 05:02:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1333 transitions. [2022-07-21 05:02:38,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-21 05:02:38,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:38,331 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-07-21 05:02:38,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 05:02:38,331 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:38,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:38,332 INFO L85 PathProgramCache]: Analyzing trace with hash -813407625, now seen corresponding path program 1 times [2022-07-21 05:02:38,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:38,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318112183] [2022-07-21 05:02:38,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:38,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:02:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:02:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 05:02:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 05:02:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 05:02:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 05:02:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 05:02:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-21 05:02:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 05:02:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 05:02:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 87 proven. 28 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-07-21 05:02:38,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:38,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318112183] [2022-07-21 05:02:38,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318112183] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:02:38,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060005478] [2022-07-21 05:02:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:38,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:02:38,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:02:38,499 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 05:02:38,524 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 05:02:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:38,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 05:02:38,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:02:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 143 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-21 05:02:38,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:02:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 77 proven. 39 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-21 05:02:39,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060005478] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:02:39,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:02:39,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 11] total 26 [2022-07-21 05:02:39,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527066783] [2022-07-21 05:02:39,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:02:39,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-21 05:02:39,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:39,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-21 05:02:39,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2022-07-21 05:02:39,159 INFO L87 Difference]: Start difference. First operand 1138 states and 1333 transitions. Second operand has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 22 states have internal predecessors, (218), 10 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2022-07-21 05:02:40,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:40,273 INFO L93 Difference]: Finished difference Result 2431 states and 2924 transitions. [2022-07-21 05:02:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-21 05:02:40,273 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 22 states have internal predecessors, (218), 10 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) Word has length 191 [2022-07-21 05:02:40,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:40,278 INFO L225 Difference]: With dead ends: 2431 [2022-07-21 05:02:40,278 INFO L226 Difference]: Without dead ends: 1301 [2022-07-21 05:02:40,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 414 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=492, Invalid=1764, Unknown=0, NotChecked=0, Total=2256 [2022-07-21 05:02:40,281 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 831 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:40,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 553 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 05:02:40,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-07-21 05:02:40,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1148. [2022-07-21 05:02:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 862 states have (on average 1.1392111368909512) internal successors, (982), 903 states have internal predecessors, (982), 151 states have call successors, (151), 130 states have call predecessors, (151), 134 states have return successors, (188), 143 states have call predecessors, (188), 151 states have call successors, (188) [2022-07-21 05:02:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1321 transitions. [2022-07-21 05:02:40,327 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1321 transitions. Word has length 191 [2022-07-21 05:02:40,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:40,327 INFO L495 AbstractCegarLoop]: Abstraction has 1148 states and 1321 transitions. [2022-07-21 05:02:40,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 22 states have internal predecessors, (218), 10 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2022-07-21 05:02:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1321 transitions. [2022-07-21 05:02:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-21 05:02:40,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:40,331 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 05:02:40,349 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 05:02:40,548 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,SelfDestructingSolverStorable11 [2022-07-21 05:02:40,549 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:40,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1314092273, now seen corresponding path program 1 times [2022-07-21 05:02:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:40,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396518562] [2022-07-21 05:02:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:02:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:02:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 05:02:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 05:02:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 05:02:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 05:02:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 05:02:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 05:02:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 05:02:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 05:02:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 05:02:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 05:02:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 05:02:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 86 proven. 58 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 05:02:40,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:40,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396518562] [2022-07-21 05:02:40,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396518562] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:02:40,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151751419] [2022-07-21 05:02:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:40,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:02:40,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:02:40,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 05:02:40,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 05:02:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:40,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-21 05:02:40,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:02:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 186 proven. 11 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 05:02:40,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:02:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 101 proven. 61 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-21 05:02:41,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151751419] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:02:41,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:02:41,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 22 [2022-07-21 05:02:41,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754793519] [2022-07-21 05:02:41,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:02:41,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 05:02:41,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:41,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 05:02:41,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:02:41,398 INFO L87 Difference]: Start difference. First operand 1148 states and 1321 transitions. Second operand has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) [2022-07-21 05:02:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:42,406 INFO L93 Difference]: Finished difference Result 2250 states and 2629 transitions. [2022-07-21 05:02:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-21 05:02:42,407 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) Word has length 207 [2022-07-21 05:02:42,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:42,411 INFO L225 Difference]: With dead ends: 2250 [2022-07-21 05:02:42,411 INFO L226 Difference]: Without dead ends: 1216 [2022-07-21 05:02:42,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 460 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=483, Invalid=1869, Unknown=0, NotChecked=0, Total=2352 [2022-07-21 05:02:42,413 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 644 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:42,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 578 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 05:02:42,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-07-21 05:02:42,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1172. [2022-07-21 05:02:42,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 878 states have (on average 1.1309794988610478) internal successors, (993), 919 states have internal predecessors, (993), 151 states have call successors, (151), 138 states have call predecessors, (151), 142 states have return successors, (188), 143 states have call predecessors, (188), 151 states have call successors, (188) [2022-07-21 05:02:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1332 transitions. [2022-07-21 05:02:42,515 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1332 transitions. Word has length 207 [2022-07-21 05:02:42,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:42,516 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1332 transitions. [2022-07-21 05:02:42,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) [2022-07-21 05:02:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1332 transitions. [2022-07-21 05:02:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-21 05:02:42,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:42,520 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-07-21 05:02:42,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 05:02:42,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:02:42,721 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:42,722 INFO L85 PathProgramCache]: Analyzing trace with hash -916420892, now seen corresponding path program 1 times [2022-07-21 05:02:42,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:42,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220973897] [2022-07-21 05:02:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:42,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:02:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:02:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 05:02:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 05:02:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 05:02:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 05:02:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 05:02:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 05:02:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 05:02:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-21 05:02:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 05:02:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 05:02:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 05:02:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:42,982 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 90 proven. 43 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-21 05:02:42,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:42,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220973897] [2022-07-21 05:02:42,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220973897] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:02:42,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628099240] [2022-07-21 05:02:42,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:42,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:02:42,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:02:42,985 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 05:02:42,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 05:02:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:43,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-21 05:02:43,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:02:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 131 proven. 26 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-07-21 05:02:43,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:02:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 99 proven. 45 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-21 05:02:43,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628099240] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:02:43,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:02:43,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 13] total 23 [2022-07-21 05:02:43,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904129357] [2022-07-21 05:02:43,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:02:43,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-21 05:02:43,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:43,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-21 05:02:43,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2022-07-21 05:02:43,660 INFO L87 Difference]: Start difference. First operand 1172 states and 1332 transitions. Second operand has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) [2022-07-21 05:02:45,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:45,231 INFO L93 Difference]: Finished difference Result 2220 states and 2579 transitions. [2022-07-21 05:02:45,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-07-21 05:02:45,231 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) Word has length 208 [2022-07-21 05:02:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:45,242 INFO L225 Difference]: With dead ends: 2220 [2022-07-21 05:02:45,242 INFO L226 Difference]: Without dead ends: 1624 [2022-07-21 05:02:45,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=822, Invalid=2484, Unknown=0, NotChecked=0, Total=3306 [2022-07-21 05:02:45,246 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1030 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 2084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:45,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 638 Invalid, 2084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 05:02:45,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2022-07-21 05:02:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1484. [2022-07-21 05:02:45,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1113 states have (on average 1.1311769991015275) internal successors, (1259), 1160 states have internal predecessors, (1259), 192 states have call successors, (192), 176 states have call predecessors, (192), 178 states have return successors, (235), 182 states have call predecessors, (235), 192 states have call successors, (235) [2022-07-21 05:02:45,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1686 transitions. [2022-07-21 05:02:45,321 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1686 transitions. Word has length 208 [2022-07-21 05:02:45,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:45,321 INFO L495 AbstractCegarLoop]: Abstraction has 1484 states and 1686 transitions. [2022-07-21 05:02:45,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) [2022-07-21 05:02:45,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1686 transitions. [2022-07-21 05:02:45,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-07-21 05:02:45,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:02:45,326 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:02:45,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 05:02:45,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:02:45,552 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:02:45,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:02:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1779854262, now seen corresponding path program 1 times [2022-07-21 05:02:45,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:02:45,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478106571] [2022-07-21 05:02:45,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:45,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:02:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 05:02:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:02:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 05:02:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 05:02:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 05:02:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 05:02:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 05:02:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 05:02:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:02:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 05:02:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-21 05:02:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 05:02:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 05:02:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 05:02:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 05:02:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 05:02:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-21 05:02:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-21 05:02:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-21 05:02:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 05:02:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-21 05:02:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 127 proven. 85 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-21 05:02:45,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:02:45,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478106571] [2022-07-21 05:02:45,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478106571] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:02:45,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469063856] [2022-07-21 05:02:45,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:02:45,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:02:45,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:02:45,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 05:02:45,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 05:02:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:02:45,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 30 conjunts are in the unsatisfiable core [2022-07-21 05:02:45,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:02:46,183 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 153 proven. 89 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-21 05:02:46,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:02:46,557 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 98 proven. 136 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-07-21 05:02:46,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469063856] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:02:46,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:02:46,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 16] total 28 [2022-07-21 05:02:46,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915810139] [2022-07-21 05:02:46,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:02:46,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-21 05:02:46,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:02:46,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-21 05:02:46,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2022-07-21 05:02:46,559 INFO L87 Difference]: Start difference. First operand 1484 states and 1686 transitions. Second operand has 28 states, 28 states have (on average 10.892857142857142) internal successors, (305), 24 states have internal predecessors, (305), 16 states have call successors, (55), 12 states have call predecessors, (55), 17 states have return successors, (58), 16 states have call predecessors, (58), 16 states have call successors, (58) [2022-07-21 05:02:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:02:47,641 INFO L93 Difference]: Finished difference Result 1984 states and 2246 transitions. [2022-07-21 05:02:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-21 05:02:47,641 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.892857142857142) internal successors, (305), 24 states have internal predecessors, (305), 16 states have call successors, (55), 12 states have call predecessors, (55), 17 states have return successors, (58), 16 states have call predecessors, (58), 16 states have call successors, (58) Word has length 263 [2022-07-21 05:02:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:02:47,642 INFO L225 Difference]: With dead ends: 1984 [2022-07-21 05:02:47,642 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 05:02:47,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 578 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=693, Invalid=2277, Unknown=0, NotChecked=0, Total=2970 [2022-07-21 05:02:47,647 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 761 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:02:47,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 641 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 05:02:47,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 05:02:47,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 05:02:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:02:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 05:02:47,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 263 [2022-07-21 05:02:47,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:02:47,649 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 05:02:47,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.892857142857142) internal successors, (305), 24 states have internal predecessors, (305), 16 states have call successors, (55), 12 states have call predecessors, (55), 17 states have return successors, (58), 16 states have call predecessors, (58), 16 states have call successors, (58) [2022-07-21 05:02:47,650 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 05:02:47,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 05:02:47,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:02:47,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 05:02:47,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-21 05:02:47,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 05:02:54,962 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 551 558) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 1 ~switchedOnBeforeTS~0))) [2022-07-21 05:02:54,962 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 551 558) no Hoare annotation was computed. [2022-07-21 05:02:54,962 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 551 558) no Hoare annotation was computed. [2022-07-21 05:02:54,962 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 458 464) no Hoare annotation was computed. [2022-07-21 05:02:54,962 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 458 464) the Hoare annotation is: true [2022-07-21 05:02:54,962 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 943 954) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse3 (not (<= ~waterLevel~0 2)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (< 1 ~waterLevel~0)) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (not (<= 1 ~pumpRunning~0)) .cse3 (< ~waterLevel~0 2)))) [2022-07-21 05:02:54,962 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 943 954) no Hoare annotation was computed. [2022-07-21 05:02:54,962 INFO L899 garLoopResultBuilder]: For program point L947-1(lines 943 954) no Hoare annotation was computed. [2022-07-21 05:02:54,962 INFO L899 garLoopResultBuilder]: For program point L833(line 833) no Hoare annotation was computed. [2022-07-21 05:02:54,962 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 812 841) no Hoare annotation was computed. [2022-07-21 05:02:54,962 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 812 841) the Hoare annotation is: true [2022-07-21 05:02:54,962 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 830) no Hoare annotation was computed. [2022-07-21 05:02:54,962 INFO L902 garLoopResultBuilder]: At program point L826-1(lines 826 830) the Hoare annotation is: true [2022-07-21 05:02:54,963 INFO L899 garLoopResultBuilder]: For program point L823(line 823) no Hoare annotation was computed. [2022-07-21 05:02:54,963 INFO L902 garLoopResultBuilder]: At program point L822-2(lines 822 836) the Hoare annotation is: true [2022-07-21 05:02:54,963 INFO L902 garLoopResultBuilder]: At program point L818(line 818) the Hoare annotation is: true [2022-07-21 05:02:54,963 INFO L899 garLoopResultBuilder]: For program point L818-1(line 818) no Hoare annotation was computed. [2022-07-21 05:02:54,963 INFO L902 garLoopResultBuilder]: At program point L837(lines 812 841) the Hoare annotation is: true [2022-07-21 05:02:54,963 INFO L895 garLoopResultBuilder]: At program point L960(lines 955 963) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:02:54,963 INFO L899 garLoopResultBuilder]: For program point L923(lines 923 927) no Hoare annotation was computed. [2022-07-21 05:02:54,963 INFO L895 garLoopResultBuilder]: At program point L923-2(lines 919 930) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:02:54,963 INFO L895 garLoopResultBuilder]: At program point L791(line 791) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|)) (.cse4 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse5 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 .cse4 .cse5)) (or (and (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) .cse2 .cse3 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse4 .cse5 (<= 1 ~switchedOnBeforeTS~0)) .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse6) (or .cse0 .cse1 .cse6 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:02:54,963 INFO L899 garLoopResultBuilder]: For program point L791-1(line 791) no Hoare annotation was computed. [2022-07-21 05:02:54,963 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 431 457) no Hoare annotation was computed. [2022-07-21 05:02:54,963 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 445 451) no Hoare annotation was computed. [2022-07-21 05:02:54,964 INFO L895 garLoopResultBuilder]: At program point L532(line 532) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse2 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse4))) [2022-07-21 05:02:54,964 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse4 .cse0 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse3))) [2022-07-21 05:02:54,964 INFO L899 garLoopResultBuilder]: For program point L912(line 912) no Hoare annotation was computed. [2022-07-21 05:02:54,964 INFO L895 garLoopResultBuilder]: At program point L776(line 776) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (< 1 ~waterLevel~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6 (not (<= 2 |old(~waterLevel~0)|))) (or (and .cse2 .cse3 (= ~waterLevel~0 1)) .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4 .cse5) .cse6))) [2022-07-21 05:02:54,964 INFO L899 garLoopResultBuilder]: For program point L776-1(line 776) no Hoare annotation was computed. [2022-07-21 05:02:54,964 INFO L895 garLoopResultBuilder]: At program point L537(line 537) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 (< 1 ~waterLevel~0) (<= ~waterLevel~0 2)) .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse3))) [2022-07-21 05:02:54,964 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 803) no Hoare annotation was computed. [2022-07-21 05:02:54,964 INFO L895 garLoopResultBuilder]: At program point L537-1(lines 518 542) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 1)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or (and (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) .cse0 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse1 (<= 1 ~switchedOnBeforeTS~0)) .cse2 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse0 .cse1)) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse4 (and .cse0 .cse5) .cse2 (and (<= 1 ~pumpRunning~0) .cse5) .cse3 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-07-21 05:02:54,964 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 444) no Hoare annotation was computed. [2022-07-21 05:02:54,964 INFO L895 garLoopResultBuilder]: At program point L566(lines 559 569) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:02:54,964 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 806) no Hoare annotation was computed. [2022-07-21 05:02:54,964 INFO L899 garLoopResultBuilder]: For program point L438-2(lines 434 456) no Hoare annotation was computed. [2022-07-21 05:02:54,964 INFO L895 garLoopResultBuilder]: At program point L789-1(lines 781 809) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or (and (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) .cse0 .cse1 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse2 (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse4) (or .cse5 (not (= |old(~waterLevel~0)| 1)) .cse3 (and .cse0 .cse1 (<= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) .cse2 .cse6)) (let ((.cse7 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse8 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2))) (or .cse5 (and (<= 1 ~pumpRunning~0) .cse7 .cse6 .cse8) .cse3 (and .cse0 .cse7 .cse6 .cse8) .cse4 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-07-21 05:02:54,964 INFO L895 garLoopResultBuilder]: At program point L913(lines 908 915) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:02:54,965 INFO L895 garLoopResultBuilder]: At program point L992(lines 987 995) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|)) (.cse7 (= ~waterLevel~0 1))) (and (let ((.cse1 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) .cse3 .cse4 (and (<= 1 ~pumpRunning~0) .cse1 .cse2) .cse5 (not (<= 2 |old(~waterLevel~0)|)))) (or .cse3 (and .cse0 .cse6 .cse7) (not (= |old(~waterLevel~0)| 1)) .cse4) (or .cse4 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse5 (and (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) .cse0 .cse6 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse7 (<= 1 ~switchedOnBeforeTS~0))))) [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 800) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 431 457) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (< 1 ~waterLevel~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6 (not (<= 2 |old(~waterLevel~0)|))) (or (and .cse2 .cse3 (= ~waterLevel~0 1)) .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4 .cse5) .cse6))) [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 534) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 431 457) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L895 garLoopResultBuilder]: At program point L778(lines 771 780) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse1 (= ~waterLevel~0 1))) (or .cse2 (not (<= 1 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< 1 ~waterLevel~0) (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0)) (not (< 1 |old(~waterLevel~0)|)) .cse3))) [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 539) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 912) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 901) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point L894-2(lines 894 901) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 731) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L899 garLoopResultBuilder]: For program point L725-1(lines 725 731) no Hoare annotation was computed. [2022-07-21 05:02:54,965 INFO L902 garLoopResultBuilder]: At program point L754(lines 695 758) the Hoare annotation is: true [2022-07-21 05:02:54,965 INFO L895 garLoopResultBuilder]: At program point L717(line 717) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2) (and (<= 1 ~pumpRunning~0) .cse3 .cse1 .cse2))) [2022-07-21 05:02:54,965 INFO L902 garLoopResultBuilder]: At program point L903(lines 884 906) the Hoare annotation is: true [2022-07-21 05:02:54,965 INFO L895 garLoopResultBuilder]: At program point L870(lines 866 872) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:02:54,965 INFO L895 garLoopResultBuilder]: At program point L672(lines 668 674) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L895 garLoopResultBuilder]: At program point L751(lines 704 752) the Hoare annotation is: false [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point L706(lines 705 750) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L895 garLoopResultBuilder]: At program point L768(lines 763 770) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point L735(lines 735 746) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L895 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse4 .cse0 .cse1 .cse2 .cse3))) [2022-07-21 05:02:54,966 INFO L895 garLoopResultBuilder]: At program point L748(lines 705 750) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2) (and (<= 1 ~pumpRunning~0) .cse3 .cse1 .cse2))) [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point L715(lines 715 721) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point L715-1(lines 715 721) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point L707(lines 707 711) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L902 garLoopResultBuilder]: At program point L881(lines 873 883) the Hoare annotation is: true [2022-07-21 05:02:54,966 INFO L895 garLoopResultBuilder]: At program point L687(lines 682 690) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:02:54,966 INFO L895 garLoopResultBuilder]: At program point L679(lines 675 681) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:02:54,966 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 745) no Hoare annotation was computed. [2022-07-21 05:02:54,966 INFO L895 garLoopResultBuilder]: At program point L741-2(lines 735 746) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse4 .cse0 .cse1 .cse2 .cse3))) [2022-07-21 05:02:54,967 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 466 490) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2022-07-21 05:02:54,967 INFO L895 garLoopResultBuilder]: At program point L630(lines 615 633) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0)) .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))))) [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 628) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point L624-2(lines 624 628) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point L1000(lines 1000 1006) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L895 garLoopResultBuilder]: At program point L548(lines 543 550) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or (<= 1 ~pumpRunning~0) .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))))) [2022-07-21 05:02:54,967 INFO L895 garLoopResultBuilder]: At program point L480(line 480) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse3)) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2)))) [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 466 490) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 482) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 487) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L895 garLoopResultBuilder]: At program point L1005(lines 996 1009) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse0 .cse2 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))))) [2022-07-21 05:02:54,967 INFO L895 garLoopResultBuilder]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 466 490) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 931 942) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L899 garLoopResultBuilder]: For program point L935-1(lines 931 942) no Hoare annotation was computed. [2022-07-21 05:02:54,967 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 931 942) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse1 (not (<= 1 ~pumpRunning~0)) .cse2 .cse3 .cse4))) [2022-07-21 05:02:54,968 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 492 516) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse3 .cse0 .cse1 .cse2))) [2022-07-21 05:02:54,968 INFO L895 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (not (<= 1 ~switchedOnBeforeTS~0))))) [2022-07-21 05:02:54,968 INFO L895 garLoopResultBuilder]: At program point L502(line 502) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~7#1| 0) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (not (<= 1 ~switchedOnBeforeTS~0))))) [2022-07-21 05:02:54,968 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 508) no Hoare annotation was computed. [2022-07-21 05:02:54,968 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 513) no Hoare annotation was computed. [2022-07-21 05:02:54,968 INFO L895 garLoopResultBuilder]: At program point L649(lines 634 652) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~1#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~7#1| 0) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) (not (<= 1 ~switchedOnBeforeTS~0))))) [2022-07-21 05:02:54,968 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 647) no Hoare annotation was computed. [2022-07-21 05:02:54,968 INFO L899 garLoopResultBuilder]: For program point L643-2(lines 643 647) no Hoare annotation was computed. [2022-07-21 05:02:54,968 INFO L895 garLoopResultBuilder]: At program point L511(line 511) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse3 .cse2 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse3 .cse0 .cse1 .cse2))) [2022-07-21 05:02:54,968 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 492 516) no Hoare annotation was computed. [2022-07-21 05:02:54,968 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 492 516) no Hoare annotation was computed. [2022-07-21 05:02:54,968 INFO L895 garLoopResultBuilder]: At program point L1015(lines 1010 1018) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse2 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse0 .cse2 .cse1))) [2022-07-21 05:02:54,968 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 570 578) no Hoare annotation was computed. [2022-07-21 05:02:54,968 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 570 578) the Hoare annotation is: true [2022-07-21 05:02:54,968 INFO L899 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 570 578) no Hoare annotation was computed. [2022-07-21 05:02:54,971 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:02:54,972 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:02:54,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:02:54 BoogieIcfgContainer [2022-07-21 05:02:54,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:02:54,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:02:54,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:02:54,990 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:02:54,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:02:32" (3/4) ... [2022-07-21 05:02:54,992 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 05:02:54,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-21 05:02:54,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-21 05:02:54,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-21 05:02:54,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-21 05:02:54,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-21 05:02:54,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-21 05:02:54,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-21 05:02:54,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-07-21 05:02:54,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-07-21 05:02:55,002 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2022-07-21 05:02:55,003 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-21 05:02:55,003 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 05:02:55,004 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-21 05:02:55,004 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 05:02:55,005 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:02:55,005 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:02:55,021 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((pumpRunning == \old(pumpRunning) && 1 < waterLevel) && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) [2022-07-21 05:02:55,022 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-21 05:02:55,022 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((methaneLevelCritical == \result && pumpRunning == 0) && waterLevel == \result) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((pumpRunning == 0 && waterLevel == \result) && pumpRunning <= tmp___0) && tmp == waterLevel) && \old(waterLevel) == waterLevel))) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel) && tmp == 2)) || !(1 == systemActive)) || (((pumpRunning == 0 && 2 == \result) && \old(waterLevel) == waterLevel) && tmp == 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-21 05:02:55,022 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((methaneLevelCritical == \result && pumpRunning == 0) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-21 05:02:55,022 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-21 05:02:55,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == 0 && 2 == \result) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && waterLevel == \result) && waterLevel == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((((((methaneLevelCritical == \result && pumpRunning == 0) && waterLevel == \result) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2022-07-21 05:02:55,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || (((pumpRunning == \old(pumpRunning) && \result == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-21 05:02:55,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || ((((pumpRunning == \old(pumpRunning) && methaneLevelCritical == \result) && \result == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-21 05:02:55,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(waterLevel == 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && \result == 0)) || !(1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2))) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) [2022-07-21 05:02:55,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) [2022-07-21 05:02:55,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive))) && (((((!(waterLevel == 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && 1 <= tmp___0) && tmp == 0) && \result == 0)) || !(1 <= switchedOnBeforeTS)) [2022-07-21 05:02:55,024 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \result == 0) && tmp___0 == 0)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) [2022-07-21 05:02:55,024 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) && ((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) [2022-07-21 05:02:55,037 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:02:55,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:02:55,038 INFO L158 Benchmark]: Toolchain (without parser) took 23470.25ms. Allocated memory was 48.2MB in the beginning and 360.7MB in the end (delta: 312.5MB). Free memory was 24.5MB in the beginning and 193.7MB in the end (delta: -169.2MB). Peak memory consumption was 143.8MB. Max. memory is 16.1GB. [2022-07-21 05:02:55,038 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:02:55,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.43ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 24.4MB in the beginning and 33.6MB in the end (delta: -9.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-07-21 05:02:55,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.01ms. Allocated memory is still 58.7MB. Free memory was 33.4MB in the beginning and 30.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 05:02:55,039 INFO L158 Benchmark]: Boogie Preprocessor took 41.30ms. Allocated memory is still 58.7MB. Free memory was 30.9MB in the beginning and 29.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:02:55,039 INFO L158 Benchmark]: RCFGBuilder took 460.33ms. Allocated memory is still 58.7MB. Free memory was 29.1MB in the beginning and 39.3MB in the end (delta: -10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 05:02:55,039 INFO L158 Benchmark]: TraceAbstraction took 22368.11ms. Allocated memory was 58.7MB in the beginning and 360.7MB in the end (delta: 302.0MB). Free memory was 38.9MB in the beginning and 200.0MB in the end (delta: -161.1MB). Peak memory consumption was 218.4MB. Max. memory is 16.1GB. [2022-07-21 05:02:55,040 INFO L158 Benchmark]: Witness Printer took 48.11ms. Allocated memory is still 360.7MB. Free memory was 200.0MB in the beginning and 193.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-21 05:02:55,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.43ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 24.4MB in the beginning and 33.6MB in the end (delta: -9.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.01ms. Allocated memory is still 58.7MB. Free memory was 33.4MB in the beginning and 30.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.30ms. Allocated memory is still 58.7MB. Free memory was 30.9MB in the beginning and 29.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 460.33ms. Allocated memory is still 58.7MB. Free memory was 29.1MB in the beginning and 39.3MB in the end (delta: -10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 22368.11ms. Allocated memory was 58.7MB in the beginning and 360.7MB in the end (delta: 302.0MB). Free memory was 38.9MB in the beginning and 200.0MB in the end (delta: -161.1MB). Peak memory consumption was 218.4MB. Max. memory is 16.1GB. * Witness Printer took 48.11ms. Allocated memory is still 360.7MB. Free memory was 200.0MB in the beginning and 193.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 912]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.3s, OverallIterations: 15, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5597 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5535 mSDsluCounter, 7848 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5525 mSDsCounter, 2384 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10019 IncrementalHoareTripleChecker+Invalid, 12403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2384 mSolverCounterUnsat, 2323 mSDtfsCounter, 10019 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2651 GetRequests, 2297 SyntacticMatches, 17 SemanticMatches, 337 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2919 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1484occurred in iteration=14, InterpolantAutomatonStates: 266, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 611 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 3929 PreInvPairs, 4093 NumberOfFragments, 2088 HoareAnnotationTreeSize, 3929 FomulaSimplifications, 5131 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 49 FomulaSimplificationsInter, 79977 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2600 NumberOfCodeBlocks, 2600 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3553 ConstructedInterpolants, 0 QuantifiedInterpolants, 8331 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3646 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 3055/3702 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 996]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \result == 0) && tmp___0 == 0)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 771]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((pumpRunning == \old(pumpRunning) && 1 < waterLevel) && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1) || (((pumpRunning == 0 && 2 == waterLevel) && 1 == systemActive) && splverifierCounter == 0)) || (((1 <= pumpRunning && 2 == waterLevel) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || ((((pumpRunning == \old(pumpRunning) && methaneLevelCritical == \result) && \result == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 987]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0 && 2 == \result) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && waterLevel == \result) && waterLevel == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((((((methaneLevelCritical == \result && pumpRunning == 0) && waterLevel == \result) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 955]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || (((pumpRunning == \old(pumpRunning) && \result == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: ((((((((((methaneLevelCritical == \result && pumpRunning == 0) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 634]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive))) && (((((!(waterLevel == 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && 1 <= tmp___0) && tmp == 0) && \result == 0)) || !(1 <= switchedOnBeforeTS)) - InvariantResult [Line: 682]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) && ((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) - InvariantResult [Line: 781]: Loop Invariant Derived loop invariant: ((((((((((((methaneLevelCritical == \result && pumpRunning == 0) && waterLevel == \result) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((pumpRunning == 0 && waterLevel == \result) && pumpRunning <= tmp___0) && tmp == waterLevel) && \old(waterLevel) == waterLevel))) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel) && tmp == 2)) || !(1 == systemActive)) || (((pumpRunning == 0 && 2 == \result) && \old(waterLevel) == waterLevel) && tmp == 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 1010]: Loop Invariant Derived loop invariant: ((((((!(waterLevel == 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && \result == 0)) || !(1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2))) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 675]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2022-07-21 05:02:55,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE