./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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_spec4_product56.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 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:09:07,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:09:07,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:09:07,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:09:07,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:09:07,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:09:07,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:09:07,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:09:07,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:09:07,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:09:07,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:09:07,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:09:07,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:09:07,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:09:07,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:09:07,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:09:07,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:09:07,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:09:07,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:09:07,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:09:07,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:09:07,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:09:07,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:09:07,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:09:07,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:09:07,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:09:07,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:09:07,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:09:07,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:09:07,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:09:07,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:09:07,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:09:07,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:09:07,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:09:07,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:09:07,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:09:07,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:09:07,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:09:07,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:09:07,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:09:07,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:09:07,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:09:07,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:09:07,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:09:07,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:09:07,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:09:07,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:09:07,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:09:07,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:09:07,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:09:07,797 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:09:07,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:09:07,798 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:09:07,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:09:07,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:09:07,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:09:07,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:09:07,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:09:07,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:09:07,799 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:09:07,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:09:07,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:09:07,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:09:07,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:09:07,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:09:07,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:09:07,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:09:07,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:09:07,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:09:07,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:09:07,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:09:07,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:09:07,801 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:09:07,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:09:07,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:09:07,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:09:07,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 [2021-12-17 15:09:07,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:09:07,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:09:07,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:09:07,988 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:09:07,989 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:09:07,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2021-12-17 15:09:08,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b67e1ea/a6555f8dccde499b894fc1f232f67095/FLAG92c2b310c [2021-12-17 15:09:08,412 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:09:08,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2021-12-17 15:09:08,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b67e1ea/a6555f8dccde499b894fc1f232f67095/FLAG92c2b310c [2021-12-17 15:09:08,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b67e1ea/a6555f8dccde499b894fc1f232f67095 [2021-12-17 15:09:08,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:09:08,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:09:08,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:09:08,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:09:08,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:09:08,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5a186d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08, skipping insertion in model container [2021-12-17 15:09:08,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:09:08,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:09:08,693 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_spec4_product56.cil.c[17338,17351] [2021-12-17 15:09:08,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:09:08,707 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:09:08,745 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_spec4_product56.cil.c[17338,17351] [2021-12-17 15:09:08,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:09:08,761 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:09:08,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08 WrapperNode [2021-12-17 15:09:08,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:09:08,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:09:08,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:09:08,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:09:08,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,801 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 289 [2021-12-17 15:09:08,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:09:08,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:09:08,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:09:08,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:09:08,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:09:08,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:09:08,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:09:08,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:09:08,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (1/1) ... [2021-12-17 15:09:08,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:09:08,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:08,858 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) [2021-12-17 15:09:08,883 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 [2021-12-17 15:09:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:09:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:09:08,903 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:09:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:09:08,903 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:09:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:09:08,904 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:09:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:09:08,905 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:09:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:09:08,906 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:09:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-12-17 15:09:08,906 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-12-17 15:09:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-17 15:09:08,906 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-17 15:09:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:09:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:09:08,906 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:09:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:09:08,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:09:08,956 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:09:08,957 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:09:09,239 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:09:09,244 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:09:09,245 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:09:09,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:09:09 BoogieIcfgContainer [2021-12-17 15:09:09,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:09:09,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:09:09,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:09:09,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:09:09,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:09:08" (1/3) ... [2021-12-17 15:09:09,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39739d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:09:09, skipping insertion in model container [2021-12-17 15:09:09,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:08" (2/3) ... [2021-12-17 15:09:09,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39739d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:09:09, skipping insertion in model container [2021-12-17 15:09:09,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:09:09" (3/3) ... [2021-12-17 15:09:09,261 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2021-12-17 15:09:09,265 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:09:09,266 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:09:09,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:09:09,311 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 15:09:09,311 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:09:09,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 86 states have internal predecessors, (104), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2021-12-17 15:09:09,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-17 15:09:09,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:09,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:09,343 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:09,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash 975776348, now seen corresponding path program 1 times [2021-12-17 15:09:09,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:09,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69904269] [2021-12-17 15:09:09,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:09,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:09,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:09,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69904269] [2021-12-17 15:09:09,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69904269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:09,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:09,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:09:09,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341067722] [2021-12-17 15:09:09,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:09,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:09:09,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:09,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:09:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:09:09,565 INFO L87 Difference]: Start difference. First operand has 100 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 86 states have internal predecessors, (104), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:09,594 INFO L93 Difference]: Finished difference Result 192 states and 263 transitions. [2021-12-17 15:09:09,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:09:09,596 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-17 15:09:09,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:09,606 INFO L225 Difference]: With dead ends: 192 [2021-12-17 15:09:09,606 INFO L226 Difference]: Without dead ends: 91 [2021-12-17 15:09:09,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:09:09,614 INFO L933 BasicCegarLoop]: 128 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, 128 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 [2021-12-17 15:09:09,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:09,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-12-17 15:09:09,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-12-17 15:09:09,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 78 states have internal predecessors, (90), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-17 15:09:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-12-17 15:09:09,661 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 19 [2021-12-17 15:09:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:09,662 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-12-17 15:09:09,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-12-17 15:09:09,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-17 15:09:09,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:09,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:09,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:09:09,664 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1543378342, now seen corresponding path program 1 times [2021-12-17 15:09:09,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:09,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306431940] [2021-12-17 15:09:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:09,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:09,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:09,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306431940] [2021-12-17 15:09:09,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306431940] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:09,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:09,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:09:09,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78576302] [2021-12-17 15:09:09,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:09,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:09:09,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:09,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:09:09,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:09,742 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:09,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:09,761 INFO L93 Difference]: Finished difference Result 143 states and 187 transitions. [2021-12-17 15:09:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:09:09,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-17 15:09:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:09,763 INFO L225 Difference]: With dead ends: 143 [2021-12-17 15:09:09,763 INFO L226 Difference]: Without dead ends: 82 [2021-12-17 15:09:09,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:09,764 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 190 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 [2021-12-17 15:09:09,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:09,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-12-17 15:09:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-12-17 15:09:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 72 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-17 15:09:09,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2021-12-17 15:09:09,773 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 20 [2021-12-17 15:09:09,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:09,774 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2021-12-17 15:09:09,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:09,774 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2021-12-17 15:09:09,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 15:09:09,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:09,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:09,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:09:09,775 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:09,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:09,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1300509367, now seen corresponding path program 1 times [2021-12-17 15:09:09,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:09,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056443337] [2021-12-17 15:09:09,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:09,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:09,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:09,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056443337] [2021-12-17 15:09:09,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056443337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:09,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:09,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:09:09,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323065671] [2021-12-17 15:09:09,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:09,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:09:09,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:09:09,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:09,817 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:09,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:09,847 INFO L93 Difference]: Finished difference Result 230 states and 306 transitions. [2021-12-17 15:09:09,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:09:09,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-17 15:09:09,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:09,849 INFO L225 Difference]: With dead ends: 230 [2021-12-17 15:09:09,849 INFO L226 Difference]: Without dead ends: 155 [2021-12-17 15:09:09,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:09,851 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 99 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:09,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-17 15:09:09,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2021-12-17 15:09:09,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 113 states have (on average 1.3628318584070795) internal successors, (154), 132 states have internal predecessors, (154), 24 states have call successors, (24), 14 states have call predecessors, (24), 14 states have return successors, (24), 13 states have call predecessors, (24), 24 states have call successors, (24) [2021-12-17 15:09:09,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 202 transitions. [2021-12-17 15:09:09,871 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 202 transitions. Word has length 25 [2021-12-17 15:09:09,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:09,871 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 202 transitions. [2021-12-17 15:09:09,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:09,871 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 202 transitions. [2021-12-17 15:09:09,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-17 15:09:09,872 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:09,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:09,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:09:09,873 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:09,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:09,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1710585576, now seen corresponding path program 1 times [2021-12-17 15:09:09,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:09,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895768839] [2021-12-17 15:09:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:09,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:09,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:09,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895768839] [2021-12-17 15:09:09,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895768839] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:09,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:09,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 15:09:09,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603309149] [2021-12-17 15:09:09,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:09,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:09:09,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:09,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:09:09,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:09:09,930 INFO L87 Difference]: Start difference. First operand 152 states and 202 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:09,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:09,986 INFO L93 Difference]: Finished difference Result 430 states and 595 transitions. [2021-12-17 15:09:09,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:09:09,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-17 15:09:09,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:09,989 INFO L225 Difference]: With dead ends: 430 [2021-12-17 15:09:09,989 INFO L226 Difference]: Without dead ends: 285 [2021-12-17 15:09:09,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:09:09,991 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 78 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:09,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 430 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:09,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-12-17 15:09:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-12-17 15:09:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 210 states have (on average 1.3428571428571427) internal successors, (282), 245 states have internal predecessors, (282), 48 states have call successors, (48), 28 states have call predecessors, (48), 26 states have return successors, (50), 24 states have call predecessors, (50), 48 states have call successors, (50) [2021-12-17 15:09:10,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 380 transitions. [2021-12-17 15:09:10,016 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 380 transitions. Word has length 28 [2021-12-17 15:09:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:10,017 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 380 transitions. [2021-12-17 15:09:10,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 380 transitions. [2021-12-17 15:09:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-17 15:09:10,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:10,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:10,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:09:10,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash 298834221, now seen corresponding path program 1 times [2021-12-17 15:09:10,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:10,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563326971] [2021-12-17 15:09:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:10,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:10,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:10,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563326971] [2021-12-17 15:09:10,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563326971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:10,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:10,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:09:10,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323649253] [2021-12-17 15:09:10,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:10,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:09:10,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:10,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:09:10,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:10,054 INFO L87 Difference]: Start difference. First operand 285 states and 380 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:10,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:10,094 INFO L93 Difference]: Finished difference Result 681 states and 931 transitions. [2021-12-17 15:09:10,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:09:10,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-17 15:09:10,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:10,100 INFO L225 Difference]: With dead ends: 681 [2021-12-17 15:09:10,103 INFO L226 Difference]: Without dead ends: 403 [2021-12-17 15:09:10,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:10,107 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 59 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:10,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 181 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:10,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-12-17 15:09:10,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 394. [2021-12-17 15:09:10,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 299 states have (on average 1.2876254180602007) internal successors, (385), 321 states have internal predecessors, (385), 49 states have call successors, (49), 45 states have call predecessors, (49), 45 states have return successors, (73), 44 states have call predecessors, (73), 49 states have call successors, (73) [2021-12-17 15:09:10,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 507 transitions. [2021-12-17 15:09:10,144 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 507 transitions. Word has length 30 [2021-12-17 15:09:10,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:10,144 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 507 transitions. [2021-12-17 15:09:10,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:09:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 507 transitions. [2021-12-17 15:09:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-17 15:09:10,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:10,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:10,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:09:10,146 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:10,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:10,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1545723250, now seen corresponding path program 1 times [2021-12-17 15:09:10,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:10,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001109907] [2021-12-17 15:09:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:10,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:10,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:10,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:10,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001109907] [2021-12-17 15:09:10,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001109907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:10,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:10,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:09:10,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308866264] [2021-12-17 15:09:10,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:10,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:09:10,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:10,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:09:10,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:09:10,235 INFO L87 Difference]: Start difference. First operand 394 states and 507 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:09:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:10,631 INFO L93 Difference]: Finished difference Result 954 states and 1316 transitions. [2021-12-17 15:09:10,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 15:09:10,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-17 15:09:10,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:10,635 INFO L225 Difference]: With dead ends: 954 [2021-12-17 15:09:10,635 INFO L226 Difference]: Without dead ends: 727 [2021-12-17 15:09:10,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2021-12-17 15:09:10,636 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 318 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:10,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 465 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 15:09:10,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-12-17 15:09:10,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 693. [2021-12-17 15:09:10,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 528 states have (on average 1.2746212121212122) internal successors, (673), 576 states have internal predecessors, (673), 81 states have call successors, (81), 67 states have call predecessors, (81), 83 states have return successors, (177), 77 states have call predecessors, (177), 81 states have call successors, (177) [2021-12-17 15:09:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 931 transitions. [2021-12-17 15:09:10,670 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 931 transitions. Word has length 32 [2021-12-17 15:09:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:10,671 INFO L470 AbstractCegarLoop]: Abstraction has 693 states and 931 transitions. [2021-12-17 15:09:10,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:09:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 931 transitions. [2021-12-17 15:09:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-17 15:09:10,672 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:10,673 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-17 15:09:10,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:09:10,673 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:10,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:10,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1302522797, now seen corresponding path program 1 times [2021-12-17 15:09:10,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:10,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351933688] [2021-12-17 15:09:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:10,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:10,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:09:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-17 15:09:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:10,735 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:09:10,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:10,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351933688] [2021-12-17 15:09:10,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351933688] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:09:10,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193723717] [2021-12-17 15:09:10,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:10,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:10,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:10,737 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) [2021-12-17 15:09:10,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:09:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:10,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 15:09:10,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:09:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:09:10,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:09:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:11,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193723717] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:09:11,159 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:09:11,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2021-12-17 15:09:11,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151294604] [2021-12-17 15:09:11,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:09:11,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-17 15:09:11,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:11,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-17 15:09:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:09:11,161 INFO L87 Difference]: Start difference. First operand 693 states and 931 transitions. Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-17 15:09:12,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:12,587 INFO L93 Difference]: Finished difference Result 1832 states and 2549 transitions. [2021-12-17 15:09:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-12-17 15:09:12,588 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 54 [2021-12-17 15:09:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:12,593 INFO L225 Difference]: With dead ends: 1832 [2021-12-17 15:09:12,593 INFO L226 Difference]: Without dead ends: 1314 [2021-12-17 15:09:12,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=713, Invalid=2947, Unknown=0, NotChecked=0, Total=3660 [2021-12-17 15:09:12,597 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 1068 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:12,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 1401 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 15:09:12,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2021-12-17 15:09:12,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1128. [2021-12-17 15:09:12,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 850 states have (on average 1.2611764705882353) internal successors, (1072), 917 states have internal predecessors, (1072), 125 states have call successors, (125), 111 states have call predecessors, (125), 152 states have return successors, (303), 134 states have call predecessors, (303), 125 states have call successors, (303) [2021-12-17 15:09:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1500 transitions. [2021-12-17 15:09:12,644 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1500 transitions. Word has length 54 [2021-12-17 15:09:12,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:12,644 INFO L470 AbstractCegarLoop]: Abstraction has 1128 states and 1500 transitions. [2021-12-17 15:09:12,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-17 15:09:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1500 transitions. [2021-12-17 15:09:12,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-17 15:09:12,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:12,646 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-17 15:09:12,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 15:09:12,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:12,861 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:12,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:12,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1988079236, now seen corresponding path program 1 times [2021-12-17 15:09:12,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:12,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259276738] [2021-12-17 15:09:12,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:12,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:09:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:09:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:09:12,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:12,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259276738] [2021-12-17 15:09:12,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259276738] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:12,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:12,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 15:09:12,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719400209] [2021-12-17 15:09:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:12,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:09:12,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:12,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:09:12,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:09:12,922 INFO L87 Difference]: Start difference. First operand 1128 states and 1500 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:09:13,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:13,188 INFO L93 Difference]: Finished difference Result 1930 states and 2607 transitions. [2021-12-17 15:09:13,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 15:09:13,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2021-12-17 15:09:13,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:13,192 INFO L225 Difference]: With dead ends: 1930 [2021-12-17 15:09:13,192 INFO L226 Difference]: Without dead ends: 809 [2021-12-17 15:09:13,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-12-17 15:09:13,195 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 128 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:13,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 663 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:09:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-12-17 15:09:13,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 726. [2021-12-17 15:09:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 557 states have (on average 1.2459605026929983) internal successors, (694), 601 states have internal predecessors, (694), 77 states have call successors, (77), 70 states have call predecessors, (77), 91 states have return successors, (164), 82 states have call predecessors, (164), 77 states have call successors, (164) [2021-12-17 15:09:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 935 transitions. [2021-12-17 15:09:13,220 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 935 transitions. Word has length 67 [2021-12-17 15:09:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:13,220 INFO L470 AbstractCegarLoop]: Abstraction has 726 states and 935 transitions. [2021-12-17 15:09:13,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:09:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 935 transitions. [2021-12-17 15:09:13,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-17 15:09:13,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:13,222 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-17 15:09:13,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:09:13,223 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1747167065, now seen corresponding path program 1 times [2021-12-17 15:09:13,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:13,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410234579] [2021-12-17 15:09:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:13,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-17 15:09:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:09:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-17 15:09:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-17 15:09:13,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:13,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410234579] [2021-12-17 15:09:13,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410234579] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:09:13,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096887161] [2021-12-17 15:09:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:13,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:13,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:13,293 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) [2021-12-17 15:09:13,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:09:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 15:09:13,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:09:13,488 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-17 15:09:13,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:09:13,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096887161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:13,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:09:13,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2021-12-17 15:09:13,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888121262] [2021-12-17 15:09:13,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:13,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 15:09:13,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:13,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 15:09:13,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:09:13,490 INFO L87 Difference]: Start difference. First operand 726 states and 935 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-17 15:09:13,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:13,520 INFO L93 Difference]: Finished difference Result 1363 states and 1800 transitions. [2021-12-17 15:09:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 15:09:13,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 86 [2021-12-17 15:09:13,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:13,523 INFO L225 Difference]: With dead ends: 1363 [2021-12-17 15:09:13,523 INFO L226 Difference]: Without dead ends: 644 [2021-12-17 15:09:13,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:09:13,526 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 11 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:13,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 315 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:13,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2021-12-17 15:09:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2021-12-17 15:09:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 493 states have (on average 1.2393509127789046) internal successors, (611), 531 states have internal predecessors, (611), 73 states have call successors, (73), 66 states have call predecessors, (73), 77 states have return successors, (134), 72 states have call predecessors, (134), 73 states have call successors, (134) [2021-12-17 15:09:13,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 818 transitions. [2021-12-17 15:09:13,548 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 818 transitions. Word has length 86 [2021-12-17 15:09:13,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:13,548 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 818 transitions. [2021-12-17 15:09:13,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-17 15:09:13,548 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 818 transitions. [2021-12-17 15:09:13,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-17 15:09:13,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:13,549 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-17 15:09:13,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 15:09:13,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-17 15:09:13,768 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:13,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:13,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1953453445, now seen corresponding path program 1 times [2021-12-17 15:09:13,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:13,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705256686] [2021-12-17 15:09:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:13,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:09:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:09:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-17 15:09:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-17 15:09:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,862 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 15:09:13,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:13,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705256686] [2021-12-17 15:09:13,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705256686] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:09:13,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655722074] [2021-12-17 15:09:13,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:13,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:13,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:13,877 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) [2021-12-17 15:09:13,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 15:09:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:09:13,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:09:14,117 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:14,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:09:14,281 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-17 15:09:14,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655722074] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:09:14,282 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:09:14,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 11 [2021-12-17 15:09:14,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815383187] [2021-12-17 15:09:14,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:09:14,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 15:09:14,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:14,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 15:09:14,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:09:14,283 INFO L87 Difference]: Start difference. First operand 644 states and 818 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-17 15:09:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:14,848 INFO L93 Difference]: Finished difference Result 1245 states and 1595 transitions. [2021-12-17 15:09:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-17 15:09:14,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2021-12-17 15:09:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:14,852 INFO L225 Difference]: With dead ends: 1245 [2021-12-17 15:09:14,852 INFO L226 Difference]: Without dead ends: 685 [2021-12-17 15:09:14,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 197 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2021-12-17 15:09:14,854 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 284 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:14,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 864 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 15:09:14,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-12-17 15:09:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 586. [2021-12-17 15:09:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 445 states have (on average 1.2202247191011235) internal successors, (543), 481 states have internal predecessors, (543), 68 states have call successors, (68), 61 states have call predecessors, (68), 72 states have return successors, (129), 64 states have call predecessors, (129), 68 states have call successors, (129) [2021-12-17 15:09:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 740 transitions. [2021-12-17 15:09:14,872 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 740 transitions. Word has length 91 [2021-12-17 15:09:14,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:14,872 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 740 transitions. [2021-12-17 15:09:14,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-17 15:09:14,873 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 740 transitions. [2021-12-17 15:09:14,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 15:09:14,874 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:14,874 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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] [2021-12-17 15:09:14,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 15:09:15,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:15,091 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:15,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:15,092 INFO L85 PathProgramCache]: Analyzing trace with hash -91360441, now seen corresponding path program 2 times [2021-12-17 15:09:15,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:15,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338786585] [2021-12-17 15:09:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:15,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:09:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:09:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 15:09:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:09:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-17 15:09:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:09:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-17 15:09:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-17 15:09:15,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:15,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338786585] [2021-12-17 15:09:15,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338786585] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:09:15,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917917180] [2021-12-17 15:09:15,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-17 15:09:15,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:15,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:15,319 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) [2021-12-17 15:09:15,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 15:09:15,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-17 15:09:15,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 15:09:15,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 15:09:15,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:09:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-17 15:09:15,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:09:15,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917917180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:15,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:09:15,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 15 [2021-12-17 15:09:15,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361303609] [2021-12-17 15:09:15,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:15,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:09:15,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:15,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:09:15,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:09:15,611 INFO L87 Difference]: Start difference. First operand 586 states and 740 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-17 15:09:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:15,792 INFO L93 Difference]: Finished difference Result 1539 states and 2016 transitions. [2021-12-17 15:09:15,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 15:09:15,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 134 [2021-12-17 15:09:15,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:15,797 INFO L225 Difference]: With dead ends: 1539 [2021-12-17 15:09:15,797 INFO L226 Difference]: Without dead ends: 1036 [2021-12-17 15:09:15,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 152 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2021-12-17 15:09:15,799 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 195 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:15,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 722 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:09:15,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-12-17 15:09:15,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1011. [2021-12-17 15:09:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 770 states have (on average 1.216883116883117) internal successors, (937), 823 states have internal predecessors, (937), 117 states have call successors, (117), 107 states have call predecessors, (117), 123 states have return successors, (207), 113 states have call predecessors, (207), 117 states have call successors, (207) [2021-12-17 15:09:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1261 transitions. [2021-12-17 15:09:15,828 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1261 transitions. Word has length 134 [2021-12-17 15:09:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:15,828 INFO L470 AbstractCegarLoop]: Abstraction has 1011 states and 1261 transitions. [2021-12-17 15:09:15,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-17 15:09:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1261 transitions. [2021-12-17 15:09:15,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-17 15:09:15,830 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:15,830 INFO L514 BasicCegarLoop]: trace histogram [3, 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, 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] [2021-12-17 15:09:15,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 15:09:16,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:16,048 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:16,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:16,048 INFO L85 PathProgramCache]: Analyzing trace with hash -145753339, now seen corresponding path program 1 times [2021-12-17 15:09:16,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:16,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568389362] [2021-12-17 15:09:16,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:16,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:09:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:09:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-17 15:09:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:09:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-17 15:09:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-17 15:09:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-17 15:09:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,118 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-17 15:09:16,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:16,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568389362] [2021-12-17 15:09:16,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568389362] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:09:16,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74166630] [2021-12-17 15:09:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:16,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:16,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:16,120 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) [2021-12-17 15:09:16,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 15:09:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:16,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-17 15:09:16,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:09:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-17 15:09:16,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:09:16,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74166630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:16,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:09:16,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2021-12-17 15:09:16,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709583577] [2021-12-17 15:09:16,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:16,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:09:16,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:16,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:09:16,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:09:16,356 INFO L87 Difference]: Start difference. First operand 1011 states and 1261 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-17 15:09:16,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:16,386 INFO L93 Difference]: Finished difference Result 1374 states and 1708 transitions. [2021-12-17 15:09:16,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:09:16,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 134 [2021-12-17 15:09:16,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:16,387 INFO L225 Difference]: With dead ends: 1374 [2021-12-17 15:09:16,387 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:09:16,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:09:16,390 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:16,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 403 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:16,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:09:16,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:09:16,390 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) [2021-12-17 15:09:16,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:09:16,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2021-12-17 15:09:16,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:16,391 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:09:16,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-17 15:09:16,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:09:16,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:09:16,394 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:09:16,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 15:09:16,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-17 15:09:16,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:09:18,259 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 183 190) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (<= 1 ~waterLevel~0)) .cse0 (not (= ~systemActive~0 1))))) [2021-12-17 15:09:18,259 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 183 190) no Hoare annotation was computed. [2021-12-17 15:09:18,259 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 183 190) no Hoare annotation was computed. [2021-12-17 15:09:18,259 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 90 96) no Hoare annotation was computed. [2021-12-17 15:09:18,260 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 90 96) the Hoare annotation is: true [2021-12-17 15:09:18,260 INFO L858 garLoopResultBuilder]: For program point L913-1(lines 909 920) no Hoare annotation was computed. [2021-12-17 15:09:18,260 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 909 920) the Hoare annotation is: true [2021-12-17 15:09:18,260 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 909 920) no Hoare annotation was computed. [2021-12-17 15:09:18,260 INFO L861 garLoopResultBuilder]: At program point L801(lines 776 805) the Hoare annotation is: true [2021-12-17 15:09:18,260 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 776 805) no Hoare annotation was computed. [2021-12-17 15:09:18,260 INFO L858 garLoopResultBuilder]: For program point L797(line 797) no Hoare annotation was computed. [2021-12-17 15:09:18,260 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 776 805) the Hoare annotation is: true [2021-12-17 15:09:18,260 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 794) no Hoare annotation was computed. [2021-12-17 15:09:18,261 INFO L861 garLoopResultBuilder]: At program point L790-1(lines 790 794) the Hoare annotation is: true [2021-12-17 15:09:18,261 INFO L858 garLoopResultBuilder]: For program point L787(line 787) no Hoare annotation was computed. [2021-12-17 15:09:18,261 INFO L861 garLoopResultBuilder]: At program point L786-2(lines 786 800) the Hoare annotation is: true [2021-12-17 15:09:18,261 INFO L861 garLoopResultBuilder]: At program point L782(line 782) the Hoare annotation is: true [2021-12-17 15:09:18,261 INFO L858 garLoopResultBuilder]: For program point L782-1(line 782) no Hoare annotation was computed. [2021-12-17 15:09:18,261 INFO L858 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2021-12-17 15:09:18,261 INFO L858 garLoopResultBuilder]: For program point L77-1(lines 77 83) no Hoare annotation was computed. [2021-12-17 15:09:18,261 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 66 89) no Hoare annotation was computed. [2021-12-17 15:09:18,262 INFO L854 garLoopResultBuilder]: At program point L164(line 164) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse2) (or .cse0 .cse2 .cse1))) [2021-12-17 15:09:18,262 INFO L854 garLoopResultBuilder]: At program point L160(line 160) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse2) (or .cse0 .cse2 .cse1))) [2021-12-17 15:09:18,262 INFO L854 garLoopResultBuilder]: At program point L879(lines 874 881) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or .cse1 .cse2 (not (= ~systemActive~0 0))) (or .cse1 .cse0 .cse2))) [2021-12-17 15:09:18,262 INFO L854 garLoopResultBuilder]: At program point L169(line 169) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse0) .cse1 .cse2 .cse3) (or .cse1 .cse3 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse2))) [2021-12-17 15:09:18,262 INFO L854 garLoopResultBuilder]: At program point L169-1(lines 150 174) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse5 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (let ((.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse2 .cse3) (and .cse2 .cse4) .cse0 .cse5 .cse1)) (or (not (<= 2 |old(~waterLevel~0)|)) (and (<= 1 ~waterLevel~0) .cse4) .cse3 .cse5))) [2021-12-17 15:09:18,262 INFO L854 garLoopResultBuilder]: At program point L198(lines 191 201) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse2) (or .cse0 .cse2 .cse1))) [2021-12-17 15:09:18,262 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 69 88) no Hoare annotation was computed. [2021-12-17 15:09:18,263 INFO L854 garLoopResultBuilder]: At program point L958(lines 953 961) the Hoare annotation is: (let ((.cse3 (not (= ~systemActive~0 0))) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (not (<= 1 |old(~waterLevel~0)|))) (.cse8 (<= 2 ~waterLevel~0)) (.cse5 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse6 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6) .cse2 .cse7 .cse3) (or (and .cse4 .cse8) (and .cse4 .cse6) .cse2 .cse9 .cse7) (or (not (<= 2 |old(~waterLevel~0)|)) (and .cse8 .cse5) (and (<= 1 ~waterLevel~0) .cse5 .cse6) .cse9) (or .cse0 .cse1 .cse2 .cse9))) [2021-12-17 15:09:18,263 INFO L854 garLoopResultBuilder]: At program point L207(lines 202 210) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or .cse1 .cse2 (not (= ~systemActive~0 0))) (or .cse1 .cse0 .cse2))) [2021-12-17 15:09:18,263 INFO L854 garLoopResultBuilder]: At program point L926(lines 921 929) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse2) (or .cse0 .cse2 .cse1))) [2021-12-17 15:09:18,263 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 166) no Hoare annotation was computed. [2021-12-17 15:09:18,263 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 171) no Hoare annotation was computed. [2021-12-17 15:09:18,263 INFO L858 garLoopResultBuilder]: For program point L889(lines 889 893) no Hoare annotation was computed. [2021-12-17 15:09:18,263 INFO L858 garLoopResultBuilder]: For program point L761(lines 761 767) no Hoare annotation was computed. [2021-12-17 15:09:18,264 INFO L854 garLoopResultBuilder]: At program point L889-2(lines 885 896) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not (= ~systemActive~0 0))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse2) (or .cse0 .cse2 .cse1))) [2021-12-17 15:09:18,264 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 770) no Hoare annotation was computed. [2021-12-17 15:09:18,264 INFO L854 garLoopResultBuilder]: At program point L757-1(lines 749 773) the Hoare annotation is: (let ((.cse0 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1|)) (.cse1 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (not (= ~systemActive~0 1))) (.cse8 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1| 1)) (.cse10 (= |timeShift_getWaterLevel_#res#1| 1)) (.cse6 (not (= ~systemActive~0 0)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and .cse0 (<= 2 ~waterLevel~0) .cse1) .cse2 (and .cse0 (<= 1 ~waterLevel~0) .cse1 .cse3)) (or .cse4 .cse5 .cse6 (and .cse0 .cse7 .cse1 .cse3)) (or .cse7 .cse4 .cse2 .cse5) (or .cse8 (and .cse9 .cse10 .cse3) .cse4 .cse2) (or .cse8 .cse4 (and .cse9 .cse10) .cse6))) [2021-12-17 15:09:18,264 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 66 89) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (not (= ~systemActive~0 1))) (.cse2 (and .cse0 (= ~pumpRunning~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (<= 1 |old(~waterLevel~0)|)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse3 .cse1 .cse4) (or .cse2 .cse3 .cse4 (not (= ~systemActive~0 0)))))) [2021-12-17 15:09:18,264 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 66 89) no Hoare annotation was computed. [2021-12-17 15:09:18,264 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 878) no Hoare annotation was computed. [2021-12-17 15:09:18,265 INFO L854 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse1 (= ~systemActive~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 0) .cse2 .cse3) (and .cse0 .cse2 .cse1 .cse3))) [2021-12-17 15:09:18,265 INFO L854 garLoopResultBuilder]: At program point L738(lines 687 739) the Hoare annotation is: false [2021-12-17 15:09:18,265 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:09:18,265 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:09:18,265 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:09:18,265 INFO L858 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2021-12-17 15:09:18,265 INFO L854 garLoopResultBuilder]: At program point L726-2(lines 718 733) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse1 (= ~systemActive~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 0) .cse2 .cse3) (and .cse0 .cse2 .cse1 .cse3))) [2021-12-17 15:09:18,265 INFO L858 garLoopResultBuilder]: For program point L689(lines 688 737) no Hoare annotation was computed. [2021-12-17 15:09:18,265 INFO L854 garLoopResultBuilder]: At program point L305(lines 300 307) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (<= 1 ~waterLevel~0) .cse1 (= ~pumpRunning~0 0)))) [2021-12-17 15:09:18,266 INFO L858 garLoopResultBuilder]: For program point L718(lines 718 733) no Hoare annotation was computed. [2021-12-17 15:09:18,266 INFO L854 garLoopResultBuilder]: At program point L297(lines 285 299) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~systemActive~0 0) (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2021-12-17 15:09:18,266 INFO L854 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse1 (= ~systemActive~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 0) .cse2 .cse3) (and .cse0 .cse2 .cse1 .cse3))) [2021-12-17 15:09:18,266 INFO L854 garLoopResultBuilder]: At program point L834(lines 830 836) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:09:18,266 INFO L858 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2021-12-17 15:09:18,266 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:09:18,266 INFO L858 garLoopResultBuilder]: For program point L289-1(lines 289 295) no Hoare annotation was computed. [2021-12-17 15:09:18,266 INFO L854 garLoopResultBuilder]: At program point L735(lines 688 737) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse1 (= ~systemActive~0 1)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~systemActive~0 0) .cse2 .cse3) (and .cse0 .cse2 .cse1 .cse3))) [2021-12-17 15:09:18,266 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 704) no Hoare annotation was computed. [2021-12-17 15:09:18,267 INFO L858 garLoopResultBuilder]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2021-12-17 15:09:18,267 INFO L854 garLoopResultBuilder]: At program point L1016(lines 1011 1019) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:09:18,267 INFO L858 garLoopResultBuilder]: For program point L690(lines 690 694) no Hoare annotation was computed. [2021-12-17 15:09:18,267 INFO L854 garLoopResultBuilder]: At program point L1008(lines 1004 1010) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:09:18,267 INFO L858 garLoopResultBuilder]: For program point L860(lines 860 867) no Hoare annotation was computed. [2021-12-17 15:09:18,267 INFO L858 garLoopResultBuilder]: For program point L860-2(lines 860 867) no Hoare annotation was computed. [2021-12-17 15:09:18,267 INFO L861 garLoopResultBuilder]: At program point L844(lines 837 846) the Hoare annotation is: true [2021-12-17 15:09:18,267 INFO L854 garLoopResultBuilder]: At program point L1001(lines 997 1003) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:09:18,267 INFO L861 garLoopResultBuilder]: At program point L741(lines 678 745) the Hoare annotation is: true [2021-12-17 15:09:18,268 INFO L861 garLoopResultBuilder]: At program point L869(lines 850 872) the Hoare annotation is: true [2021-12-17 15:09:18,268 INFO L858 garLoopResultBuilder]: For program point L708(lines 708 714) no Hoare annotation was computed. [2021-12-17 15:09:18,268 INFO L858 garLoopResultBuilder]: For program point L708-1(lines 708 714) no Hoare annotation was computed. [2021-12-17 15:09:18,268 INFO L854 garLoopResultBuilder]: At program point L291(line 291) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 2 ~waterLevel~0)) [2021-12-17 15:09:18,268 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 98 122) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2021-12-17 15:09:18,268 INFO L858 garLoopResultBuilder]: For program point L256(lines 256 260) no Hoare annotation was computed. [2021-12-17 15:09:18,268 INFO L858 garLoopResultBuilder]: For program point L256-2(lines 256 260) no Hoare annotation was computed. [2021-12-17 15:09:18,268 INFO L854 garLoopResultBuilder]: At program point L180(lines 175 182) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 1))) [2021-12-17 15:09:18,268 INFO L854 garLoopResultBuilder]: At program point L112(line 112) the Hoare annotation is: (let ((.cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~3#1|) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) (= ~pumpRunning~0 0)) .cse2) (or (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse0 .cse2 (not (<= 2 ~waterLevel~0))))) [2021-12-17 15:09:18,269 INFO L854 garLoopResultBuilder]: At program point L971(lines 962 975) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (= ~pumpRunning~0 0))) (and (or (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0) (not (= ~waterLevel~0 1)) .cse1 .cse2) (or .cse1 .cse2 (not (<= 2 ~waterLevel~0)) .cse0))) [2021-12-17 15:09:18,269 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 114) no Hoare annotation was computed. [2021-12-17 15:09:18,269 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 119) no Hoare annotation was computed. [2021-12-17 15:09:18,269 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 98 122) no Hoare annotation was computed. [2021-12-17 15:09:18,269 INFO L854 garLoopResultBuilder]: At program point L117(line 117) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-17 15:09:18,269 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 98 122) no Hoare annotation was computed. [2021-12-17 15:09:18,269 INFO L858 garLoopResultBuilder]: For program point L966(lines 966 972) no Hoare annotation was computed. [2021-12-17 15:09:18,269 INFO L854 garLoopResultBuilder]: At program point L262(lines 247 265) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~3#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0) (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1)))) [2021-12-17 15:09:18,270 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 897 908) no Hoare annotation was computed. [2021-12-17 15:09:18,270 INFO L858 garLoopResultBuilder]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2021-12-17 15:09:18,270 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|)) (not (= ~systemActive~0 0))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2) (or (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse2))) [2021-12-17 15:09:18,270 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 145) no Hoare annotation was computed. [2021-12-17 15:09:18,270 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 124 148) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~systemActive~0 1))) [2021-12-17 15:09:18,270 INFO L854 garLoopResultBuilder]: At program point L281(lines 266 284) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or (and (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~1#1|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~4#1| 0)) .cse0 .cse1))) [2021-12-17 15:09:18,270 INFO L854 garLoopResultBuilder]: At program point L981(lines 976 984) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or .cse0 (and (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse1))) [2021-12-17 15:09:18,270 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 279) no Hoare annotation was computed. [2021-12-17 15:09:18,270 INFO L858 garLoopResultBuilder]: For program point L275-2(lines 275 279) no Hoare annotation was computed. [2021-12-17 15:09:18,271 INFO L854 garLoopResultBuilder]: At program point L143(line 143) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) (not (<= 1 ~waterLevel~0)) (not (= ~systemActive~0 1))) [2021-12-17 15:09:18,271 INFO L858 garLoopResultBuilder]: For program point L143-1(lines 124 148) no Hoare annotation was computed. [2021-12-17 15:09:18,271 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 124 148) no Hoare annotation was computed. [2021-12-17 15:09:18,271 INFO L854 garLoopResultBuilder]: At program point L138(line 138) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= ~systemActive~0 1))) [2021-12-17 15:09:18,271 INFO L854 garLoopResultBuilder]: At program point L134(line 134) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or .cse0 (and (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_~tmp~1#1|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~4#1| 0)) .cse1))) [2021-12-17 15:09:18,271 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 140) no Hoare annotation was computed. [2021-12-17 15:09:18,273 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:18,274 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:09:18,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:09:18 BoogieIcfgContainer [2021-12-17 15:09:18,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:09:18,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:09:18,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:09:18,291 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:09:18,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:09:09" (3/4) ... [2021-12-17 15:09:18,294 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:09:18,297 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-17 15:09:18,297 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:09:18,298 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:09:18,298 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:09:18,298 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:09:18,298 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:09:18,298 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:09:18,298 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2021-12-17 15:09:18,302 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2021-12-17 15:09:18,303 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:09:18,303 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:09:18,303 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:09:18,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:09:18,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:09:18,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:09:18,317 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:18,318 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) && (((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || (1 <= waterLevel && pumpRunning == 0)) || 2 <= waterLevel) || !(systemActive == 1)) [2021-12-17 15:09:18,318 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && (((((waterLevel == \old(waterLevel) && 1 <= \result) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) || !(1 <= \old(waterLevel))) || !(systemActive == 0))) && (((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || (2 <= waterLevel && 1 <= \result)) || ((1 <= waterLevel && 1 <= \result) && pumpRunning == 0)) || !(systemActive == 1))) && (((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) [2021-12-17 15:09:18,319 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:18,319 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(2 <= \old(waterLevel)) || ((1 <= tmp && 2 <= waterLevel) && 1 <= \result)) || !(systemActive == 1)) || (((1 <= tmp && 1 <= waterLevel) && 1 <= \result) && pumpRunning == 0)) && (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) || (((1 <= tmp && waterLevel == \old(waterLevel)) && 1 <= \result) && pumpRunning == 0))) && (((waterLevel == \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(\old(waterLevel) == 1) || ((tmp == 1 && \result == 1) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 0)) || (tmp == 1 && \result == 1)) || !(systemActive == 0)) [2021-12-17 15:09:18,319 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:18,319 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && ((!(1 <= waterLevel) || (\result == 0 && pumpRunning == \old(pumpRunning))) || !(systemActive == 1)) [2021-12-17 15:09:18,319 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:18,319 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= \result && pumpRunning == 0) || !(waterLevel == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(2 <= waterLevel)) || pumpRunning == 0) [2021-12-17 15:09:18,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && ((((((\result == 0 && 1 <= \result) && 1 <= tmp___0) && pumpRunning == \old(pumpRunning)) && tmp == 0) || !(1 <= waterLevel)) || !(systemActive == 1)) [2021-12-17 15:09:18,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:18,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && pumpRunning == 0) || ((((tmp___0 == 0 && 1 <= tmp) && \result == 0) && 1 <= \result) && pumpRunning == 0)) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) [2021-12-17 15:09:18,320 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) [2021-12-17 15:09:18,337 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:09:18,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:09:18,337 INFO L158 Benchmark]: Toolchain (without parser) took 9895.07ms. Allocated memory was 102.8MB in the beginning and 239.1MB in the end (delta: 136.3MB). Free memory was 73.3MB in the beginning and 98.3MB in the end (delta: -25.1MB). Peak memory consumption was 112.1MB. Max. memory is 16.1GB. [2021-12-17 15:09:18,337 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory was 60.1MB in the beginning and 60.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:09:18,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.25ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 69.0MB in the end (delta: 4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 15:09:18,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.97ms. Allocated memory is still 102.8MB. Free memory was 69.0MB in the beginning and 66.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:09:18,338 INFO L158 Benchmark]: Boogie Preprocessor took 21.21ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 64.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:09:18,338 INFO L158 Benchmark]: RCFGBuilder took 423.05ms. Allocated memory was 102.8MB in the beginning and 146.8MB in the end (delta: 44.0MB). Free memory was 64.8MB in the beginning and 120.0MB in the end (delta: -55.2MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-12-17 15:09:18,339 INFO L158 Benchmark]: TraceAbstraction took 9042.70ms. Allocated memory was 146.8MB in the beginning and 239.1MB in the end (delta: 92.3MB). Free memory was 119.3MB in the beginning and 105.7MB in the end (delta: 13.7MB). Peak memory consumption was 140.2MB. Max. memory is 16.1GB. [2021-12-17 15:09:18,339 INFO L158 Benchmark]: Witness Printer took 46.03ms. Allocated memory is still 239.1MB. Free memory was 105.7MB in the beginning and 98.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 15:09:18,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory was 60.1MB in the beginning and 60.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.25ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 69.0MB in the end (delta: 4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.97ms. Allocated memory is still 102.8MB. Free memory was 69.0MB in the beginning and 66.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.21ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 64.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 423.05ms. Allocated memory was 102.8MB in the beginning and 146.8MB in the end (delta: 44.0MB). Free memory was 64.8MB in the beginning and 120.0MB in the end (delta: -55.2MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9042.70ms. Allocated memory was 146.8MB in the beginning and 239.1MB in the end (delta: 92.3MB). Free memory was 119.3MB in the beginning and 105.7MB in the end (delta: 13.7MB). Peak memory consumption was 140.2MB. Max. memory is 16.1GB. * Witness Printer took 46.03ms. Allocated memory is still 239.1MB. Free memory was 105.7MB in the beginning and 98.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 878]: 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 9 procedures, 100 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2303 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2266 mSDsluCounter, 5986 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4310 mSDsCounter, 731 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3592 IncrementalHoareTripleChecker+Invalid, 4323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 731 mSolverCounterUnsat, 1676 mSDtfsCounter, 3592 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 901 GetRequests, 733 SyntacticMatches, 9 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1128occurred in iteration=7, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 439 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 2753 PreInvPairs, 2892 NumberOfFragments, 1303 HoareAnnotationTreeSize, 2753 FomulaSimplifications, 2499 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 48 FomulaSimplificationsInter, 6694 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1219 NumberOfCodeBlocks, 1219 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1345 ConstructedInterpolants, 0 QuantifiedInterpolants, 2488 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2425 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 515/585 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: 976]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && ((!(1 <= waterLevel) || (\result == 0 && pumpRunning == \old(pumpRunning))) || !(systemActive == 1)) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 962]: Loop Invariant Derived loop invariant: ((((1 <= \result && pumpRunning == 0) || !(waterLevel == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(2 <= waterLevel)) || pumpRunning == 0) - InvariantResult [Line: 953]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && (((((waterLevel == \old(waterLevel) && 1 <= \result) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) || !(1 <= \old(waterLevel))) || !(systemActive == 0))) && (((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || (2 <= waterLevel && 1 <= \result)) || ((1 <= waterLevel && 1 <= \result) && pumpRunning == 0)) || !(systemActive == 1))) && (((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) - InvariantResult [Line: 1011]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 830]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && ((((((\result == 0 && 1 <= \result) && 1 <= tmp___0) && pumpRunning == \old(pumpRunning)) && tmp == 0) || !(1 <= waterLevel)) || !(systemActive == 1)) - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: ((((((!(2 <= \old(waterLevel)) || ((1 <= tmp && 2 <= waterLevel) && 1 <= \result)) || !(systemActive == 1)) || (((1 <= tmp && 1 <= waterLevel) && 1 <= \result) && pumpRunning == 0)) && (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) || (((1 <= tmp && waterLevel == \old(waterLevel)) && 1 <= \result) && pumpRunning == 0))) && (((waterLevel == \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(\old(waterLevel) == 1) || ((tmp == 1 && \result == 1) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(\old(waterLevel) == 1) || !(\old(pumpRunning) == 0)) || (tmp == 1 && \result == 1)) || !(systemActive == 0)) - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && pumpRunning == 0) || ((((tmp___0 == 0 && 1 <= tmp) && \result == 0) && 1 <= \result) && pumpRunning == 0)) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && 2 <= waterLevel) && systemActive == 1) || (((splverifierCounter == 0 && systemActive == 0) && 1 <= waterLevel) && pumpRunning == 0)) || (((splverifierCounter == 0 && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) - InvariantResult [Line: 1004]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: ((!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0 && 2 <= waterLevel) && systemActive == 1) || (((splverifierCounter == 0 && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) && ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 997]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0 && systemActive == 0) && 1 <= waterLevel) && pumpRunning == 0 - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0)) && (((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(2 <= \old(waterLevel)) || (1 <= waterLevel && pumpRunning == 0)) || 2 <= waterLevel) || !(systemActive == 1)) - InvariantResult [Line: 786]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: ((!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:09:18,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE