./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product57.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_product57.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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:09:08,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:09:08,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:09:08,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:09:08,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:09:08,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:09:08,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:09:08,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:09:08,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:09:08,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:09:08,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:09:08,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:09:08,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:09:08,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:09:08,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:09:08,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:09:08,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:09:08,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:09:08,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:09:08,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:09:08,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:09:08,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:09:08,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:09:08,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:09:08,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:09:08,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:09:08,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:09:08,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:09:08,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:09:08,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:09:08,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:09:08,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:09:08,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:09:08,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:09:08,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:09:08,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:09:08,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:09:08,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:09:08,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:09:08,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:09:08,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:09:08,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:09:08,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:09:08,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:09:08,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:09:08,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:09:08,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:09:08,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:09:08,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:09:08,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:09:08,812 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:09:08,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:09:08,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:09:08,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:09:08,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:09:08,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:09:08,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:09:08,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:09:08,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:09:08,814 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:09:08,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:09:08,814 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:09:08,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:09:08,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:09:08,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:09:08,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:09:08,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:09:08,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:09:08,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:09:08,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:09:08,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:09:08,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:09:08,816 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:09:08,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:09:08,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:09:08,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:09:08,816 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2021-12-17 15:09:09,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:09:09,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:09:09,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:09:09,028 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:09:09,028 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:09:09,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-12-17 15:09:09,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9cebe39/836ce628b288465d923944017c8c8632/FLAGba30fdfab [2021-12-17 15:09:09,461 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:09:09,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-12-17 15:09:09,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9cebe39/836ce628b288465d923944017c8c8632/FLAGba30fdfab [2021-12-17 15:09:09,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c9cebe39/836ce628b288465d923944017c8c8632 [2021-12-17 15:09:09,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:09:09,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:09:09,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:09:09,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:09:09,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:09:09,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:09:09" (1/1) ... [2021-12-17 15:09:09,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2125b9fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:09, skipping insertion in model container [2021-12-17 15:09:09,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:09:09" (1/1) ... [2021-12-17 15:09:09,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:09:09,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:09:10,100 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_product57.cil.c[18691,18704] [2021-12-17 15:09:10,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:09:10,114 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:09:10,189 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_product57.cil.c[18691,18704] [2021-12-17 15:09:10,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:09:10,201 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:09:10,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10 WrapperNode [2021-12-17 15:09:10,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:09:10,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:09:10,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:09:10,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:09:10,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,267 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 280 [2021-12-17 15:09:10,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:09:10,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:09:10,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:09:10,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:09:10,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:09:10,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:09:10,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:09:10,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:09:10,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (1/1) ... [2021-12-17 15:09:10,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:09:10,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:10,371 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 15:09:10,412 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 15:09:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:09:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:09:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:09:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:09:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:09:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:09:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:09:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:09:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:09:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:09:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:09:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:09:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:09:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:09:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:09:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:09:10,495 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:09:10,497 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:09:10,744 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:09:10,749 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:09:10,750 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:09:10,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:09:10 BoogieIcfgContainer [2021-12-17 15:09:10,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:09:10,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:09:10,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:09:10,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:09:10,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:09:09" (1/3) ... [2021-12-17 15:09:10,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6385f518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:09:10, skipping insertion in model container [2021-12-17 15:09:10,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:09:10" (2/3) ... [2021-12-17 15:09:10,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6385f518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:09:10, skipping insertion in model container [2021-12-17 15:09:10,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:09:10" (3/3) ... [2021-12-17 15:09:10,757 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2021-12-17 15:09:10,761 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:09:10,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:09:10,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:09:10,795 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 15:09:10,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:09:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-17 15:09:10,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-17 15:09:10,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:10,826 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 15:09:10,826 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:10,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:10,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1290449034, now seen corresponding path program 1 times [2021-12-17 15:09:10,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:10,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484258817] [2021-12-17 15:09:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:10,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,016 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 15:09:11,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:11,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484258817] [2021-12-17 15:09:11,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484258817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:11,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:11,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:09:11,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590077150] [2021-12-17 15:09:11,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:11,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:09:11,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:11,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:09:11,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:09:11,043 INFO L87 Difference]: Start difference. First operand has 86 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) 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 15:09:11,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:11,085 INFO L93 Difference]: Finished difference Result 164 states and 225 transitions. [2021-12-17 15:09:11,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:09:11,087 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 15:09:11,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:11,101 INFO L225 Difference]: With dead ends: 164 [2021-12-17 15:09:11,101 INFO L226 Difference]: Without dead ends: 77 [2021-12-17 15:09:11,105 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 15:09:11,110 INFO L933 BasicCegarLoop]: 109 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, 109 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 15:09:11,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-17 15:09:11,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-12-17 15:09:11,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 68 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-17 15:09:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2021-12-17 15:09:11,151 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 19 [2021-12-17 15:09:11,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:11,152 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2021-12-17 15:09:11,152 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 15:09:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2021-12-17 15:09:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-17 15:09:11,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:11,156 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 15:09:11,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:09:11,157 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:11,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:11,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1967581778, now seen corresponding path program 1 times [2021-12-17 15:09:11,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:11,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502761712] [2021-12-17 15:09:11,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:11,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,230 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 15:09:11,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:11,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502761712] [2021-12-17 15:09:11,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502761712] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:11,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:11,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:09:11,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359057842] [2021-12-17 15:09:11,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:11,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:09:11,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:11,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:09:11,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:11,233 INFO L87 Difference]: Start difference. First operand 77 states and 100 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 15:09:11,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:11,245 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2021-12-17 15:09:11,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:09:11,246 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 15:09:11,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:11,248 INFO L225 Difference]: With dead ends: 120 [2021-12-17 15:09:11,248 INFO L226 Difference]: Without dead ends: 68 [2021-12-17 15:09:11,253 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 15:09:11,254 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 12 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 158 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 15:09:11,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-17 15:09:11,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-12-17 15:09:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 15:09:11,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2021-12-17 15:09:11,267 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 20 [2021-12-17 15:09:11,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:11,268 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2021-12-17 15:09:11,268 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 15:09:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2021-12-17 15:09:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 15:09:11,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:11,272 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] [2021-12-17 15:09:11,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:09:11,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:11,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash 764053852, now seen corresponding path program 1 times [2021-12-17 15:09:11,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:11,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732546447] [2021-12-17 15:09:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:11,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,326 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 15:09:11,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:11,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732546447] [2021-12-17 15:09:11,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732546447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:11,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:11,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:09:11,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095442007] [2021-12-17 15:09:11,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:11,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:09:11,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:11,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:09:11,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:11,329 INFO L87 Difference]: Start difference. First operand 68 states and 88 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 15:09:11,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:11,351 INFO L93 Difference]: Finished difference Result 129 states and 170 transitions. [2021-12-17 15:09:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:09:11,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 24 [2021-12-17 15:09:11,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:11,354 INFO L225 Difference]: With dead ends: 129 [2021-12-17 15:09:11,354 INFO L226 Difference]: Without dead ends: 68 [2021-12-17 15:09:11,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:09:11,358 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 86 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 15:09:11,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 86 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:11,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-17 15:09:11,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-12-17 15:09:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-17 15:09:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2021-12-17 15:09:11,368 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 24 [2021-12-17 15:09:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:11,368 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2021-12-17 15:09:11,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 15:09:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2021-12-17 15:09:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-17 15:09:11,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:11,373 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 15:09:11,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:09:11,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:11,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1882395024, now seen corresponding path program 1 times [2021-12-17 15:09:11,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:11,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257855347] [2021-12-17 15:09:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:11,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,432 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 15:09:11,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:11,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257855347] [2021-12-17 15:09:11,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257855347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:11,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:11,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:09:11,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780035677] [2021-12-17 15:09:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:11,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:09:11,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:11,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:09:11,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:09:11,436 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 15:09:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:11,488 INFO L93 Difference]: Finished difference Result 168 states and 221 transitions. [2021-12-17 15:09:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:09:11,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 32 [2021-12-17 15:09:11,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:11,490 INFO L225 Difference]: With dead ends: 168 [2021-12-17 15:09:11,490 INFO L226 Difference]: Without dead ends: 107 [2021-12-17 15:09:11,490 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 15:09:11,491 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 52 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:11,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 143 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:11,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-12-17 15:09:11,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-12-17 15:09:11,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 92 states have internal predecessors, (110), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2021-12-17 15:09:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2021-12-17 15:09:11,507 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 32 [2021-12-17 15:09:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:11,507 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2021-12-17 15:09:11,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 15:09:11,508 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2021-12-17 15:09:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-17 15:09:11,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:11,508 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:11,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:09:11,509 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:11,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:11,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1383918710, now seen corresponding path program 1 times [2021-12-17 15:09:11,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:11,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646411921] [2021-12-17 15:09:11,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:11,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:09:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:09:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,602 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 15:09:11,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:11,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646411921] [2021-12-17 15:09:11,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646411921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:11,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:11,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:09:11,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899482581] [2021-12-17 15:09:11,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:11,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:09:11,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:11,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:09:11,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:09:11,605 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 15:09:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:11,776 INFO L93 Difference]: Finished difference Result 298 states and 395 transitions. [2021-12-17 15:09:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:09:11,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2021-12-17 15:09:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:11,779 INFO L225 Difference]: With dead ends: 298 [2021-12-17 15:09:11,779 INFO L226 Difference]: Without dead ends: 200 [2021-12-17 15:09:11,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:09:11,780 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 133 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:11,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 298 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:09:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-12-17 15:09:11,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2021-12-17 15:09:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.2767295597484276) internal successors, (203), 170 states have internal predecessors, (203), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (32), 18 states have call predecessors, (32), 18 states have call successors, (32) [2021-12-17 15:09:11,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 253 transitions. [2021-12-17 15:09:11,794 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 253 transitions. Word has length 40 [2021-12-17 15:09:11,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:11,794 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 253 transitions. [2021-12-17 15:09:11,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-17 15:09:11,795 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 253 transitions. [2021-12-17 15:09:11,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-17 15:09:11,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:11,795 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:11,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:09:11,796 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:11,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:11,796 INFO L85 PathProgramCache]: Analyzing trace with hash 325624560, now seen corresponding path program 1 times [2021-12-17 15:09:11,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:11,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981075519] [2021-12-17 15:09:11,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:11,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:09:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:09:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:11,849 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 15:09:11,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:11,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981075519] [2021-12-17 15:09:11,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981075519] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:11,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:11,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:09:11,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871149426] [2021-12-17 15:09:11,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:11,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:09:11,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:11,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:09:11,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:09:11,851 INFO L87 Difference]: Start difference. First operand 198 states and 253 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-17 15:09:12,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:12,141 INFO L93 Difference]: Finished difference Result 281 states and 354 transitions. [2021-12-17 15:09:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-17 15:09:12,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-12-17 15:09:12,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:12,143 INFO L225 Difference]: With dead ends: 281 [2021-12-17 15:09:12,144 INFO L226 Difference]: Without dead ends: 279 [2021-12-17 15:09:12,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2021-12-17 15:09:12,145 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 196 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:12,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 421 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:09:12,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-12-17 15:09:12,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 231. [2021-12-17 15:09:12,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 186 states have (on average 1.2580645161290323) internal successors, (234), 202 states have internal predecessors, (234), 20 states have call successors, (20), 18 states have call predecessors, (20), 24 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2021-12-17 15:09:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 293 transitions. [2021-12-17 15:09:12,163 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 293 transitions. Word has length 44 [2021-12-17 15:09:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:12,163 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 293 transitions. [2021-12-17 15:09:12,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-17 15:09:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 293 transitions. [2021-12-17 15:09:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-17 15:09:12,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:12,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:12,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:09:12,165 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1024939841, now seen corresponding path program 1 times [2021-12-17 15:09:12,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:12,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473165859] [2021-12-17 15:09:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:12,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:09:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,211 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 15:09:12,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:12,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473165859] [2021-12-17 15:09:12,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473165859] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:12,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:12,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:09:12,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786709367] [2021-12-17 15:09:12,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:12,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:09:12,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:12,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:09:12,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:09:12,213 INFO L87 Difference]: Start difference. First operand 231 states and 293 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:09:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:12,364 INFO L93 Difference]: Finished difference Result 495 states and 653 transitions. [2021-12-17 15:09:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:09:12,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-17 15:09:12,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:12,366 INFO L225 Difference]: With dead ends: 495 [2021-12-17 15:09:12,366 INFO L226 Difference]: Without dead ends: 271 [2021-12-17 15:09:12,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:09:12,367 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 137 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:12,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 352 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:09:12,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-12-17 15:09:12,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 237. [2021-12-17 15:09:12,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 192 states have (on average 1.25) internal successors, (240), 208 states have internal predecessors, (240), 20 states have call successors, (20), 18 states have call predecessors, (20), 24 states have return successors, (39), 20 states have call predecessors, (39), 20 states have call successors, (39) [2021-12-17 15:09:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 299 transitions. [2021-12-17 15:09:12,380 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 299 transitions. Word has length 46 [2021-12-17 15:09:12,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:12,380 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 299 transitions. [2021-12-17 15:09:12,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:09:12,380 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 299 transitions. [2021-12-17 15:09:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-17 15:09:12,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:12,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:12,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:09:12,381 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:12,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:12,382 INFO L85 PathProgramCache]: Analyzing trace with hash -969204865, now seen corresponding path program 1 times [2021-12-17 15:09:12,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:12,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997730953] [2021-12-17 15:09:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:12,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:09:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,417 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 15:09:12,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:12,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997730953] [2021-12-17 15:09:12,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997730953] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:12,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:12,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:09:12,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130225616] [2021-12-17 15:09:12,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:12,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:09:12,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:12,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:09:12,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:09:12,419 INFO L87 Difference]: Start difference. First operand 237 states and 299 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:09:12,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:12,535 INFO L93 Difference]: Finished difference Result 463 states and 597 transitions. [2021-12-17 15:09:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:09:12,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-17 15:09:12,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:12,536 INFO L225 Difference]: With dead ends: 463 [2021-12-17 15:09:12,537 INFO L226 Difference]: Without dead ends: 233 [2021-12-17 15:09:12,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:09:12,538 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 143 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:12,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 288 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:09:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-12-17 15:09:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 182. [2021-12-17 15:09:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 146 states have (on average 1.2465753424657535) internal successors, (182), 158 states have internal predecessors, (182), 17 states have call successors, (17), 15 states have call predecessors, (17), 18 states have return successors, (28), 16 states have call predecessors, (28), 17 states have call successors, (28) [2021-12-17 15:09:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 227 transitions. [2021-12-17 15:09:12,546 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 227 transitions. Word has length 46 [2021-12-17 15:09:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:12,546 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 227 transitions. [2021-12-17 15:09:12,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:09:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 227 transitions. [2021-12-17 15:09:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-17 15:09:12,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:12,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:12,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:09:12,547 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:12,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1786853315, now seen corresponding path program 1 times [2021-12-17 15:09:12,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:12,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846259404] [2021-12-17 15:09:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:12,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:09:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,590 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 15:09:12,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:12,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846259404] [2021-12-17 15:09:12,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846259404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:12,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:09:12,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:09:12,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272413228] [2021-12-17 15:09:12,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:12,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:09:12,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:12,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:09:12,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:09:12,592 INFO L87 Difference]: Start difference. First operand 182 states and 227 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:09:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:12,847 INFO L93 Difference]: Finished difference Result 417 states and 553 transitions. [2021-12-17 15:09:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 15:09:12,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-17 15:09:12,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:12,849 INFO L225 Difference]: With dead ends: 417 [2021-12-17 15:09:12,849 INFO L226 Difference]: Without dead ends: 282 [2021-12-17 15:09:12,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-12-17 15:09:12,850 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 206 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:12,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 452 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:09:12,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-12-17 15:09:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 271. [2021-12-17 15:09:12,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 217 states have (on average 1.2211981566820276) internal successors, (265), 232 states have internal predecessors, (265), 25 states have call successors, (25), 23 states have call predecessors, (25), 28 states have return successors, (54), 27 states have call predecessors, (54), 25 states have call successors, (54) [2021-12-17 15:09:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 344 transitions. [2021-12-17 15:09:12,860 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 344 transitions. Word has length 46 [2021-12-17 15:09:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:12,860 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 344 transitions. [2021-12-17 15:09:12,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:09:12,861 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 344 transitions. [2021-12-17 15:09:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-17 15:09:12,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:12,862 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-17 15:09:12,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 15:09:12,862 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1370841909, now seen corresponding path program 1 times [2021-12-17 15:09:12,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:12,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914898180] [2021-12-17 15:09:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:12,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:09:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:09:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-17 15:09:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-17 15:09:12,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:12,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914898180] [2021-12-17 15:09:12,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914898180] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:09:12,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232564520] [2021-12-17 15:09:12,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:12,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:12,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:12,944 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 15:09:12,945 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 15:09:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:13,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-17 15:09:13,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:09:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:09:13,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:09:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-17 15:09:13,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232564520] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:09:13,293 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:09:13,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2021-12-17 15:09:13,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047522151] [2021-12-17 15:09:13,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:09:13,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:09:13,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:09:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:09:13,294 INFO L87 Difference]: Start difference. First operand 271 states and 344 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-17 15:09:13,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:13,749 INFO L93 Difference]: Finished difference Result 636 states and 856 transitions. [2021-12-17 15:09:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-17 15:09:13,750 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2021-12-17 15:09:13,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:13,752 INFO L225 Difference]: With dead ends: 636 [2021-12-17 15:09:13,752 INFO L226 Difference]: Without dead ends: 412 [2021-12-17 15:09:13,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 172 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2021-12-17 15:09:13,754 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 364 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:13,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 559 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 15:09:13,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-12-17 15:09:13,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 365. [2021-12-17 15:09:13,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 289 states have (on average 1.2283737024221453) internal successors, (355), 310 states have internal predecessors, (355), 36 states have call successors, (36), 33 states have call predecessors, (36), 39 states have return successors, (82), 36 states have call predecessors, (82), 36 states have call successors, (82) [2021-12-17 15:09:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 473 transitions. [2021-12-17 15:09:13,775 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 473 transitions. Word has length 80 [2021-12-17 15:09:13,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:13,775 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 473 transitions. [2021-12-17 15:09:13,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-17 15:09:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 473 transitions. [2021-12-17 15:09:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 15:09:13,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:13,778 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:13,796 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 15:09:13,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-17 15:09:13,995 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:13,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:13,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2051063763, now seen corresponding path program 2 times [2021-12-17 15:09:13,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:13,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203651747] [2021-12-17 15:09:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:13,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:09:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:09:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-17 15:09:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-17 15:09:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:09:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-17 15:09:14,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:14,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203651747] [2021-12-17 15:09:14,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203651747] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:09:14,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641162592] [2021-12-17 15:09:14,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-17 15:09:14,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:14,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:14,178 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 15:09:14,179 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 15:09:14,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-17 15:09:14,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-17 15:09:14,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 15:09:14,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:09:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-17 15:09:14,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:09:14,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641162592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:14,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:09:14,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-12-17 15:09:14,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898225656] [2021-12-17 15:09:14,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:14,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:09:14,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:14,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:09:14,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-17 15:09:14,482 INFO L87 Difference]: Start difference. First operand 365 states and 473 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-17 15:09:14,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:14,670 INFO L93 Difference]: Finished difference Result 1004 states and 1357 transitions. [2021-12-17 15:09:14,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 15:09:14,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 114 [2021-12-17 15:09:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:14,674 INFO L225 Difference]: With dead ends: 1004 [2021-12-17 15:09:14,674 INFO L226 Difference]: Without dead ends: 685 [2021-12-17 15:09:14,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 126 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-12-17 15:09:14,676 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 232 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:14,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 490 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:09:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-12-17 15:09:14,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 616. [2021-12-17 15:09:14,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 489 states have (on average 1.2229038854805725) internal successors, (598), 518 states have internal predecessors, (598), 61 states have call successors, (61), 58 states have call predecessors, (61), 65 states have return successors, (123), 63 states have call predecessors, (123), 61 states have call successors, (123) [2021-12-17 15:09:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 782 transitions. [2021-12-17 15:09:14,704 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 782 transitions. Word has length 114 [2021-12-17 15:09:14,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:14,704 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 782 transitions. [2021-12-17 15:09:14,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-17 15:09:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 782 transitions. [2021-12-17 15:09:14,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-17 15:09:14,709 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:09:14,710 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:14,729 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 15:09:14,926 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,SelfDestructingSolverStorable10 [2021-12-17 15:09:14,926 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:09:14,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:09:14,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1607163089, now seen corresponding path program 1 times [2021-12-17 15:09:14,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:09:14,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57493004] [2021-12-17 15:09:14,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:14,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:09:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:09:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:09:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:09:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-17 15:09:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-17 15:09:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-17 15:09:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:09:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-17 15:09:15,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:09:15,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57493004] [2021-12-17 15:09:15,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57493004] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:09:15,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764951563] [2021-12-17 15:09:15,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:09:15,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:15,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:09:15,048 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 15:09:15,086 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 15:09:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:09:15,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-17 15:09:15,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:09:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 15:09:15,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:09:15,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764951563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:09:15,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:09:15,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-12-17 15:09:15,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606595371] [2021-12-17 15:09:15,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:09:15,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:09:15,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:09:15,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:09:15,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:09:15,350 INFO L87 Difference]: Start difference. First operand 616 states and 782 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-17 15:09:15,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:09:15,404 INFO L93 Difference]: Finished difference Result 850 states and 1064 transitions. [2021-12-17 15:09:15,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 15:09:15,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 114 [2021-12-17 15:09:15,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:09:15,405 INFO L225 Difference]: With dead ends: 850 [2021-12-17 15:09:15,406 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:09:15,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:09:15,411 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 27 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:09:15,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 324 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:09:15,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:09:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:09:15,412 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 15:09:15,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:09:15,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2021-12-17 15:09:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:09:15,412 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:09:15,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-17 15:09:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:09:15,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:09:15,416 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:09:15,453 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 15:09:15,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:09:15,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:09:17,630 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 156 162) no Hoare annotation was computed. [2021-12-17 15:09:17,631 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 156 162) the Hoare annotation is: true [2021-12-17 15:09:17,631 INFO L858 garLoopResultBuilder]: For program point L402-1(lines 398 409) no Hoare annotation was computed. [2021-12-17 15:09:17,631 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 398 409) the Hoare annotation is: true [2021-12-17 15:09:17,631 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 398 409) no Hoare annotation was computed. [2021-12-17 15:09:17,631 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 514 543) no Hoare annotation was computed. [2021-12-17 15:09:17,631 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 514 543) the Hoare annotation is: true [2021-12-17 15:09:17,631 INFO L861 garLoopResultBuilder]: At program point L539(lines 514 543) the Hoare annotation is: true [2021-12-17 15:09:17,631 INFO L858 garLoopResultBuilder]: For program point L535(line 535) no Hoare annotation was computed. [2021-12-17 15:09:17,632 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2021-12-17 15:09:17,632 INFO L861 garLoopResultBuilder]: At program point L528-1(lines 528 532) the Hoare annotation is: true [2021-12-17 15:09:17,632 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-12-17 15:09:17,632 INFO L861 garLoopResultBuilder]: At program point L524-2(lines 524 538) the Hoare annotation is: true [2021-12-17 15:09:17,632 INFO L861 garLoopResultBuilder]: At program point L520(line 520) the Hoare annotation is: true [2021-12-17 15:09:17,632 INFO L858 garLoopResultBuilder]: For program point L520-1(line 520) no Hoare annotation was computed. [2021-12-17 15:09:17,632 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2021-12-17 15:09:17,632 INFO L854 garLoopResultBuilder]: At program point L378-2(lines 374 385) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-17 15:09:17,632 INFO L854 garLoopResultBuilder]: At program point L246(lines 241 248) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 1 ~waterLevel~0) (= ~pumpRunning~0 0)) .cse0))) [2021-12-17 15:09:17,633 INFO L854 garLoopResultBuilder]: At program point L209(line 209) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse0) (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1))) [2021-12-17 15:09:17,633 INFO L854 garLoopResultBuilder]: At program point L209-1(lines 190 214) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse0 .cse1) (and .cse0 .cse2) (not (= |old(~pumpRunning~0)| 0)) .cse3 (not (<= 1 |old(~waterLevel~0)|)))) (or (not (<= 2 |old(~waterLevel~0)|)) (and (<= 1 ~waterLevel~0) .cse2) .cse1 .cse3))) [2021-12-17 15:09:17,633 INFO L858 garLoopResultBuilder]: For program point L143-1(lines 143 149) no Hoare annotation was computed. [2021-12-17 15:09:17,633 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 337) no Hoare annotation was computed. [2021-12-17 15:09:17,633 INFO L858 garLoopResultBuilder]: For program point L333-2(lines 333 337) no Hoare annotation was computed. [2021-12-17 15:09:17,633 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 132 155) no Hoare annotation was computed. [2021-12-17 15:09:17,633 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 364) no Hoare annotation was computed. [2021-12-17 15:09:17,633 INFO L858 garLoopResultBuilder]: For program point L354(lines 354 367) no Hoare annotation was computed. [2021-12-17 15:09:17,633 INFO L854 garLoopResultBuilder]: At program point L354-1(lines 346 370) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse3 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|)) (.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 (and (<= 1 ~waterLevel~0) (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|) (<= 1 |timeShift_getWaterLevel_#res#1|) .cse1) (and .cse2 .cse3 (<= 2 ~waterLevel~0)) .cse4) (or (and (= |timeShift_getWaterLevel_#res#1| 1) .cse5 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| 1) .cse1) (not (= |old(~waterLevel~0)| 1)) .cse6 .cse4) (or .cse0 .cse6 (and .cse2 .cse3 .cse5) .cse4))) [2021-12-17 15:09:17,634 INFO L854 garLoopResultBuilder]: At program point L470(lines 465 473) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-17 15:09:17,634 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 135 154) no Hoare annotation was computed. [2021-12-17 15:09:17,634 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 206) no Hoare annotation was computed. [2021-12-17 15:09:17,634 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 211) no Hoare annotation was computed. [2021-12-17 15:09:17,634 INFO L854 garLoopResultBuilder]: At program point L339(lines 324 342) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 (and (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 1 ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-17 15:09:17,634 INFO L858 garLoopResultBuilder]: For program point L979(line 979) no Hoare annotation was computed. [2021-12-17 15:09:17,634 INFO L854 garLoopResultBuilder]: At program point L265(lines 260 268) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-17 15:09:17,634 INFO L854 garLoopResultBuilder]: At program point L447(lines 442 450) the Hoare annotation is: (let ((.cse2 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (<= 2 ~waterLevel~0))) (let ((.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (and .cse2 .cse7 .cse3)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 (and (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) .cse1) (and .cse2 .cse3) .cse4) (or .cse0 .cse5 .cse6 .cse4) (or (and .cse7 .cse1) .cse5 .cse6 .cse4 (not (<= 1 |old(~waterLevel~0)|))) (or (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1) .cse6 .cse4)))) [2021-12-17 15:09:17,635 INFO L854 garLoopResultBuilder]: At program point L980(lines 975 982) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-17 15:09:17,635 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 132 155) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse1) (or (and .cse0 (= ~pumpRunning~0 0)) (not (= |old(~pumpRunning~0)| 0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-17 15:09:17,635 INFO L854 garLoopResultBuilder]: At program point L204(line 204) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2021-12-17 15:09:17,635 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 132 155) no Hoare annotation was computed. [2021-12-17 15:09:17,635 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 979) no Hoare annotation was computed. [2021-12-17 15:09:17,635 INFO L854 garLoopResultBuilder]: At program point L572(lines 568 574) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:09:17,635 INFO L854 garLoopResultBuilder]: At program point L110(lines 63 111) the Hoare annotation is: false [2021-12-17 15:09:17,635 INFO L858 garLoopResultBuilder]: For program point L65(lines 64 109) no Hoare annotation was computed. [2021-12-17 15:09:17,636 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:09:17,636 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 105) no Hoare annotation was computed. [2021-12-17 15:09:17,636 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:09:17,636 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:09:17,636 INFO L854 garLoopResultBuilder]: At program point L86(line 86) 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 15:09:17,636 INFO L854 garLoopResultBuilder]: At program point L107(lines 64 109) 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 15:09:17,636 INFO L858 garLoopResultBuilder]: For program point L74(lines 74 80) no Hoare annotation was computed. [2021-12-17 15:09:17,636 INFO L858 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2021-12-17 15:09:17,636 INFO L861 garLoopResultBuilder]: At program point L582(lines 575 584) the Hoare annotation is: true [2021-12-17 15:09:17,637 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-12-17 15:09:17,637 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:09:17,637 INFO L854 garLoopResultBuilder]: At program point L508(lines 503 511) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:09:17,637 INFO L854 garLoopResultBuilder]: At program point L500(lines 496 502) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:09:17,637 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 602) no Hoare annotation was computed. [2021-12-17 15:09:17,637 INFO L858 garLoopResultBuilder]: For program point L595-2(lines 595 602) no Hoare annotation was computed. [2021-12-17 15:09:17,637 INFO L858 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2021-12-17 15:09:17,638 INFO L854 garLoopResultBuilder]: At program point L100-2(lines 94 105) 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 15:09:17,638 INFO L861 garLoopResultBuilder]: At program point L604(lines 585 607) the Hoare annotation is: true [2021-12-17 15:09:17,638 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2021-12-17 15:09:17,638 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2021-12-17 15:09:17,638 INFO L861 garLoopResultBuilder]: At program point L113(lines 54 117) the Hoare annotation is: true [2021-12-17 15:09:17,638 INFO L854 garLoopResultBuilder]: At program point L493(lines 489 495) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:09:17,638 INFO L854 garLoopResultBuilder]: At program point L76(line 76) 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 15:09:17,638 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 164 188) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1)) (= ~pumpRunning~0 0)) [2021-12-17 15:09:17,638 INFO L854 garLoopResultBuilder]: At program point L320(lines 305 323) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1| 1)) (not (= ~waterLevel~0 1)) .cse0 .cse1) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (not (<= 1 ~waterLevel~0)) .cse0 .cse1))) [2021-12-17 15:09:17,639 INFO L854 garLoopResultBuilder]: At program point L256(lines 249 259) the Hoare annotation is: (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-17 15:09:17,639 INFO L854 garLoopResultBuilder]: At program point L415(lines 410 418) the Hoare annotation is: (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0)) (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-17 15:09:17,639 INFO L858 garLoopResultBuilder]: For program point L314(lines 314 318) no Hoare annotation was computed. [2021-12-17 15:09:17,639 INFO L858 garLoopResultBuilder]: For program point L314-2(lines 314 318) no Hoare annotation was computed. [2021-12-17 15:09:17,639 INFO L854 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1| 1)) (not (= ~waterLevel~0 1)) .cse0 .cse1) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0)) (not (<= 1 ~waterLevel~0)) .cse0 .cse1))) [2021-12-17 15:09:17,639 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 180) no Hoare annotation was computed. [2021-12-17 15:09:17,639 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 185) no Hoare annotation was computed. [2021-12-17 15:09:17,640 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2021-12-17 15:09:17,640 INFO L854 garLoopResultBuilder]: At program point L220(lines 215 222) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 1))) [2021-12-17 15:09:17,641 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 164 188) no Hoare annotation was computed. [2021-12-17 15:09:17,641 INFO L854 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= ~systemActive~0 1))) [2021-12-17 15:09:17,641 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 164 188) no Hoare annotation was computed. [2021-12-17 15:09:17,642 INFO L854 garLoopResultBuilder]: At program point L460(lines 451 464) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= ~waterLevel~0 1)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1) .cse0) .cse1 .cse2) (or .cse1 .cse2 (not (<= 2 ~waterLevel~0)) .cse0))) [2021-12-17 15:09:17,642 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 237) no Hoare annotation was computed. [2021-12-17 15:09:17,642 INFO L854 garLoopResultBuilder]: At program point L231-2(lines 224 240) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (<= 2 ~waterLevel~0) (not (= ~systemActive~0 1))) [2021-12-17 15:09:17,642 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 386 397) no Hoare annotation was computed. [2021-12-17 15:09:17,642 INFO L858 garLoopResultBuilder]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2021-12-17 15:09:17,643 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 386 397) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1))) [2021-12-17 15:09:17,645 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:09:17,646 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:09:17,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:09:17 BoogieIcfgContainer [2021-12-17 15:09:17,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:09:17,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:09:17,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:09:17,676 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:09:17,677 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:09:10" (3/4) ... [2021-12-17 15:09:17,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:09:17,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:09:17,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:09:17,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:09:17,683 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:09:17,683 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:09:17,683 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:09:17,693 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2021-12-17 15:09:17,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:09:17,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:09:17,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:09:17,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:09:17,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:09:17,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:09:17,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:17,710 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((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 15:09:17,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(2 <= \old(waterLevel)) || ((1 <= waterLevel && 1 <= \result) && pumpRunning == 0)) || (2 <= \result && 2 <= waterLevel)) || !(systemActive == 1)) && (((!(2 <= \old(waterLevel)) || ((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((((waterLevel == \old(waterLevel) && pumpRunning == 0) || ((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) [2021-12-17 15:09:17,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(2 <= \old(waterLevel)) || (((1 <= waterLevel && 1 <= tmp) && 1 <= \result) && pumpRunning == 0)) || ((2 <= \result && 2 <= tmp) && 2 <= waterLevel)) || !(systemActive == 1)) && ((((((\result == 1 && waterLevel == \old(waterLevel)) && tmp == 1) && pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(2 <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || ((2 <= \result && 2 <= tmp) && waterLevel == \old(waterLevel))) || !(systemActive == 1)) [2021-12-17 15:09:17,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(2 <= \old(waterLevel)) || ((\result == 0 && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:17,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || (\result == 1 && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(2 <= waterLevel)) || pumpRunning == 0) [2021-12-17 15:09:17,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:17,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(2 <= \old(waterLevel)) || !(systemActive == 1)) || (((((1 <= tmp___0 && 1 <= \result) && \result == 0) && pumpRunning == \old(pumpRunning)) && tmp == 0) && 1 <= waterLevel)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:17,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 && tmp == 1) || !(waterLevel == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((((2 <= waterLevel && pumpRunning == 0) || ((\result == 0 && tmp___0 == 0) && pumpRunning == \old(pumpRunning))) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) [2021-12-17 15:09:17,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) [2021-12-17 15:09:17,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) && ((!(2 <= \old(waterLevel)) || ((((((1 <= tmp___0 && 1 <= \result) && 1 <= tmp) && \result == 0) && tmp == 0) && 1 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1)) [2021-12-17 15:09:17,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) [2021-12-17 15:09:17,713 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) [2021-12-17 15:09:17,713 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) [2021-12-17 15:09:17,713 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) [2021-12-17 15:09:17,742 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:09:17,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:09:17,743 INFO L158 Benchmark]: Toolchain (without parser) took 7901.90ms. Allocated memory was 96.5MB in the beginning and 155.2MB in the end (delta: 58.7MB). Free memory was 62.8MB in the beginning and 42.6MB in the end (delta: 20.2MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2021-12-17 15:09:17,743 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:09:17,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.46ms. Allocated memory is still 96.5MB. Free memory was 62.6MB in the beginning and 65.9MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 15:09:17,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.87ms. Allocated memory is still 96.5MB. Free memory was 65.9MB in the beginning and 63.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:09:17,744 INFO L158 Benchmark]: Boogie Preprocessor took 55.56ms. Allocated memory is still 96.5MB. Free memory was 63.3MB in the beginning and 62.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:09:17,744 INFO L158 Benchmark]: RCFGBuilder took 425.84ms. Allocated memory is still 96.5MB. Free memory was 61.7MB in the beginning and 45.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 15:09:17,745 INFO L158 Benchmark]: TraceAbstraction took 6923.07ms. Allocated memory was 96.5MB in the beginning and 155.2MB in the end (delta: 58.7MB). Free memory was 44.9MB in the beginning and 50.0MB in the end (delta: -5.1MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2021-12-17 15:09:17,745 INFO L158 Benchmark]: Witness Printer took 66.44ms. Allocated memory is still 155.2MB. Free memory was 50.0MB in the beginning and 42.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 15:09:17,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.46ms. Allocated memory is still 96.5MB. Free memory was 62.6MB in the beginning and 65.9MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.87ms. Allocated memory is still 96.5MB. Free memory was 65.9MB in the beginning and 63.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.56ms. Allocated memory is still 96.5MB. Free memory was 63.3MB in the beginning and 62.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.84ms. Allocated memory is still 96.5MB. Free memory was 61.7MB in the beginning and 45.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6923.07ms. Allocated memory was 96.5MB in the beginning and 155.2MB in the end (delta: 58.7MB). Free memory was 44.9MB in the beginning and 50.0MB in the end (delta: -5.1MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. * Witness Printer took 66.44ms. Allocated memory is still 155.2MB. Free memory was 50.0MB in the beginning and 42.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 979]: 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 7 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1584 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1572 mSDsluCounter, 3680 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2503 mSDsCounter, 354 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1493 IncrementalHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 354 mSolverCounterUnsat, 1177 mSDtfsCounter, 1493 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 595 GetRequests, 470 SyntacticMatches, 7 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=11, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 264 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 1198 PreInvPairs, 1321 NumberOfFragments, 924 HoareAnnotationTreeSize, 1198 FomulaSimplifications, 1850 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 41 FomulaSimplificationsInter, 13345 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 933 NumberOfCodeBlocks, 933 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 997 ConstructedInterpolants, 0 QuantifiedInterpolants, 1817 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1475 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 317/356 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: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: (((((!(2 <= \old(waterLevel)) || ((1 <= waterLevel && 1 <= \result) && pumpRunning == 0)) || (2 <= \result && 2 <= waterLevel)) || !(systemActive == 1)) && (((!(2 <= \old(waterLevel)) || ((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((((waterLevel == \old(waterLevel) && pumpRunning == 0) || ((2 <= \result && waterLevel == \old(waterLevel)) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) || !(1 <= \old(waterLevel)))) && (((!(\old(waterLevel) == 1) || \result == 1) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: ((!(2 <= \old(waterLevel)) || !(systemActive == 1)) || (((((1 <= tmp___0 && 1 <= \result) && \result == 0) && pumpRunning == \old(pumpRunning)) && tmp == 0) && 1 <= waterLevel)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: ((!(2 <= \old(waterLevel)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) && ((!(2 <= \old(waterLevel)) || ((((((1 <= tmp___0 && 1 <= \result) && 1 <= tmp) && \result == 0) && tmp == 0) && 1 <= waterLevel) && pumpRunning == 0)) || !(systemActive == 1)) - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: ((!(2 <= \old(waterLevel)) || ((\result == 0 && pumpRunning == \old(pumpRunning)) && 1 <= waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 975]: Loop Invariant Derived loop invariant: (!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: (!(2 <= \old(waterLevel)) || !(systemActive == 1)) && ((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || !(\old(pumpRunning) == 0)) || 2 <= waterLevel) || !(systemActive == 1) - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || (\result == 1 && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((!(\old(pumpRunning) == 0) || !(systemActive == 1)) || !(2 <= waterLevel)) || pumpRunning == 0) - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: ((((\result == 1 && tmp == 1) || !(waterLevel == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) && (((((2 <= waterLevel && pumpRunning == 0) || ((\result == 0 && tmp___0 == 0) && pumpRunning == \old(pumpRunning))) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1)) - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: (((((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: 346]: Loop Invariant Derived loop invariant: ((((!(2 <= \old(waterLevel)) || (((1 <= waterLevel && 1 <= tmp) && 1 <= \result) && pumpRunning == 0)) || ((2 <= \result && 2 <= tmp) && 2 <= waterLevel)) || !(systemActive == 1)) && ((((((\result == 1 && waterLevel == \old(waterLevel)) && tmp == 1) && pumpRunning == 0) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1))) && (((!(2 <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || ((2 <= \result && 2 <= tmp) && waterLevel == \old(waterLevel))) || !(systemActive == 1)) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0 && 2 <= waterLevel) && systemActive == 1) || (((splverifierCounter == 0 && 1 <= waterLevel) && systemActive == 1) && pumpRunning == 0) - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 503]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) || !(1 <= waterLevel)) || !(\old(pumpRunning) == 0)) || !(systemActive == 1) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:09:17,820 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