./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_spec3_product05.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 b865f5e931ffaacb6a81afac914a10a47a42bb42c424711b6672929c081952ea --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:38:08,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:38:08,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:38:08,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:38:08,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:38:08,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:38:08,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:38:08,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:38:08,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:38:08,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:38:08,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:38:08,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:38:08,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:38:08,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:38:08,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:38:08,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:38:08,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:38:08,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:38:08,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:38:08,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:38:08,654 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:38:08,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:38:08,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:38:08,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:38:08,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:38:08,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:38:08,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:38:08,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:38:08,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:38:08,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:38:08,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:38:08,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:38:08,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:38:08,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:38:08,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:38:08,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:38:08,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:38:08,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:38:08,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:38:08,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:38:08,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:38:08,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:38:08,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:38:08,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:38:08,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:38:08,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:38:08,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:38:08,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:38:08,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:38:08,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:38:08,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:38:08,694 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:38:08,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:38:08,695 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:38:08,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:38:08,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:38:08,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:38:08,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:38:08,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:38:08,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:38:08,696 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:38:08,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:38:08,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:38:08,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:38:08,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:38:08,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:38:08,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:38:08,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:38:08,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:38:08,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:38:08,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:38:08,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:38:08,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:38:08,698 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:38:08,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:38:08,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:38:08,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b865f5e931ffaacb6a81afac914a10a47a42bb42c424711b6672929c081952ea [2022-07-22 17:38:08,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:38:08,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:38:08,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:38:08,891 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:38:08,891 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:38:08,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2022-07-22 17:38:08,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60311090d/d08cbbd4756a4d4eafd405f4dbd03efc/FLAGb323b6e17 [2022-07-22 17:38:09,350 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:38:09,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2022-07-22 17:38:09,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60311090d/d08cbbd4756a4d4eafd405f4dbd03efc/FLAGb323b6e17 [2022-07-22 17:38:09,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60311090d/d08cbbd4756a4d4eafd405f4dbd03efc [2022-07-22 17:38:09,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:38:09,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:38:09,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:38:09,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:38:09,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:38:09,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ae2635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09, skipping insertion in model container [2022-07-22 17:38:09,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:38:09,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:38:09,553 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_spec3_product05.cil.c[2141,2154] [2022-07-22 17:38:09,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:38:09,616 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:38:09,626 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_spec3_product05.cil.c[2141,2154] [2022-07-22 17:38:09,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:38:09,668 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:38:09,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09 WrapperNode [2022-07-22 17:38:09,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:38:09,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:38:09,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:38:09,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:38:09,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,728 INFO L137 Inliner]: procedures = 50, calls = 149, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 213 [2022-07-22 17:38:09,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:38:09,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:38:09,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:38:09,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:38:09,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:38:09,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:38:09,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:38:09,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:38:09,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (1/1) ... [2022-07-22 17:38:09,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:38:09,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:38:09,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 17:38:09,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 17:38:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:38:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-22 17:38:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-22 17:38:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-22 17:38:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-22 17:38:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-22 17:38:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-22 17:38:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-22 17:38:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-22 17:38:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-22 17:38:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-22 17:38:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:38:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-22 17:38:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-22 17:38:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:38:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:38:09,887 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:38:09,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:38:10,101 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:38:10,107 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:38:10,108 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 17:38:10,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:10 BoogieIcfgContainer [2022-07-22 17:38:10,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:38:10,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:38:10,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:38:10,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:38:10,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:38:09" (1/3) ... [2022-07-22 17:38:10,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc44eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:38:10, skipping insertion in model container [2022-07-22 17:38:10,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:38:09" (2/3) ... [2022-07-22 17:38:10,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc44eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:38:10, skipping insertion in model container [2022-07-22 17:38:10,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:10" (3/3) ... [2022-07-22 17:38:10,115 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2022-07-22 17:38:10,125 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:38:10,125 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:38:10,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:38:10,196 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@431e2336, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@53d7cd1e [2022-07-22 17:38:10,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:38:10,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 62 states have internal predecessors, (78), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-22 17:38:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 17:38:10,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:10,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:38:10,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:10,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash 566445789, now seen corresponding path program 1 times [2022-07-22 17:38:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:10,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062323927] [2022-07-22 17:38:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:10,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 17:38:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:10,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:10,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062323927] [2022-07-22 17:38:10,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062323927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:10,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:10,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 17:38:10,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328783460] [2022-07-22 17:38:10,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:10,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 17:38:10,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:10,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 17:38:10,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 17:38:10,394 INFO L87 Difference]: Start difference. First operand has 74 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 62 states have internal predecessors, (78), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:10,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:10,413 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2022-07-22 17:38:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 17:38:10,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-22 17:38:10,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:10,420 INFO L225 Difference]: With dead ends: 140 [2022-07-22 17:38:10,421 INFO L226 Difference]: Without dead ends: 65 [2022-07-22 17:38:10,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 17:38:10,426 INFO L413 NwaCegarLoop]: 92 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, 92 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:10,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:10,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-22 17:38:10,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-07-22 17:38:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 54 states have internal predecessors, (64), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-22 17:38:10,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions. [2022-07-22 17:38:10,457 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 83 transitions. Word has length 25 [2022-07-22 17:38:10,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:10,457 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 83 transitions. [2022-07-22 17:38:10,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:10,458 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 83 transitions. [2022-07-22 17:38:10,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-22 17:38:10,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:10,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:38:10,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 17:38:10,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:10,460 INFO L85 PathProgramCache]: Analyzing trace with hash 453650771, now seen corresponding path program 1 times [2022-07-22 17:38:10,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:10,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067550374] [2022-07-22 17:38:10,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:10,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 17:38:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:10,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:10,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067550374] [2022-07-22 17:38:10,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067550374] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:10,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:10,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:10,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303025986] [2022-07-22 17:38:10,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:10,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:10,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:10,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:10,559 INFO L87 Difference]: Start difference. First operand 65 states and 83 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:10,600 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2022-07-22 17:38:10,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:10,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-22 17:38:10,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:10,603 INFO L225 Difference]: With dead ends: 96 [2022-07-22 17:38:10,604 INFO L226 Difference]: Without dead ends: 56 [2022-07-22 17:38:10,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:10,607 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 12 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:10,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 124 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-22 17:38:10,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-22 17:38:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 48 states have internal predecessors, (57), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-22 17:38:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2022-07-22 17:38:10,615 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 26 [2022-07-22 17:38:10,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:10,618 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2022-07-22 17:38:10,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:10,618 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2022-07-22 17:38:10,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 17:38:10,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:10,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:38:10,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 17:38:10,619 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:10,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:10,630 INFO L85 PathProgramCache]: Analyzing trace with hash 216187885, now seen corresponding path program 1 times [2022-07-22 17:38:10,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:10,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297408629] [2022-07-22 17:38:10,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:10,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:38:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:10,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:10,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297408629] [2022-07-22 17:38:10,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297408629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:10,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:10,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:10,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770384419] [2022-07-22 17:38:10,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:10,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:10,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:10,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:10,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:10,687 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:10,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:10,695 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2022-07-22 17:38:10,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:10,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-22 17:38:10,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:10,698 INFO L225 Difference]: With dead ends: 105 [2022-07-22 17:38:10,699 INFO L226 Difference]: Without dead ends: 56 [2022-07-22 17:38:10,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:10,701 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:10,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-22 17:38:10,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-22 17:38:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.302325581395349) internal successors, (56), 48 states have internal predecessors, (56), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-22 17:38:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2022-07-22 17:38:10,708 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 30 [2022-07-22 17:38:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:10,708 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2022-07-22 17:38:10,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:38:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2022-07-22 17:38:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-22 17:38:10,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:10,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:38:10,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 17:38:10,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:10,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:10,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1177248900, now seen corresponding path program 1 times [2022-07-22 17:38:10,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:10,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632229682] [2022-07-22 17:38:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:10,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:38:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:38:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:10,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:10,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632229682] [2022-07-22 17:38:10,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632229682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:10,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:10,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:38:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515365272] [2022-07-22 17:38:10,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:10,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:38:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:38:10,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:38:10,782 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 17:38:10,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:10,836 INFO L93 Difference]: Finished difference Result 150 states and 196 transitions. [2022-07-22 17:38:10,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:38:10,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-07-22 17:38:10,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:10,838 INFO L225 Difference]: With dead ends: 150 [2022-07-22 17:38:10,838 INFO L226 Difference]: Without dead ends: 101 [2022-07-22 17:38:10,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:38:10,839 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 41 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:10,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 280 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:10,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-07-22 17:38:10,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2022-07-22 17:38:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 82 states have internal predecessors, (96), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (15), 11 states have call predecessors, (15), 14 states have call successors, (15) [2022-07-22 17:38:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 125 transitions. [2022-07-22 17:38:10,860 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 125 transitions. Word has length 35 [2022-07-22 17:38:10,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:10,860 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 125 transitions. [2022-07-22 17:38:10,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 17:38:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 125 transitions. [2022-07-22 17:38:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:38:10,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:10,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:38:10,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:38:10,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:10,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:10,863 INFO L85 PathProgramCache]: Analyzing trace with hash -17013609, now seen corresponding path program 1 times [2022-07-22 17:38:10,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:10,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427441377] [2022-07-22 17:38:10,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:10,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-22 17:38:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 17:38:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:38:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:38:10,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:38:10,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427441377] [2022-07-22 17:38:10,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427441377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:38:10,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:38:10,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:38:10,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433497780] [2022-07-22 17:38:10,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:38:10,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:38:10,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:38:10,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:38:10,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:10,898 INFO L87 Difference]: Start difference. First operand 98 states and 125 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 17:38:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:38:10,908 INFO L93 Difference]: Finished difference Result 174 states and 223 transitions. [2022-07-22 17:38:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:38:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-07-22 17:38:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:38:10,910 INFO L225 Difference]: With dead ends: 174 [2022-07-22 17:38:10,910 INFO L226 Difference]: Without dead ends: 83 [2022-07-22 17:38:10,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:38:10,911 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:38:10,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:38:10,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-07-22 17:38:10,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-07-22 17:38:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 67 states have internal predecessors, (78), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-22 17:38:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 98 transitions. [2022-07-22 17:38:10,919 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 98 transitions. Word has length 37 [2022-07-22 17:38:10,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:38:10,919 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 98 transitions. [2022-07-22 17:38:10,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 17:38:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2022-07-22 17:38:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-22 17:38:10,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:38:10,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:38:10,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:38:10,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:38:10,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:38:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1405090262, now seen corresponding path program 1 times [2022-07-22 17:38:10,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:38:10,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088260186] [2022-07-22 17:38:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:38:10,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:38:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:38:10,944 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 17:38:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:38:10,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 17:38:10,995 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 17:38:10,996 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 17:38:10,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 17:38:11,001 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-22 17:38:11,005 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 17:38:11,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 05:38:11 BoogieIcfgContainer [2022-07-22 17:38:11,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 17:38:11,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 17:38:11,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 17:38:11,049 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 17:38:11,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:38:10" (3/4) ... [2022-07-22 17:38:11,050 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 17:38:11,092 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 17:38:11,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 17:38:11,094 INFO L158 Benchmark]: Toolchain (without parser) took 1712.69ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 93.4MB in the beginning and 107.5MB in the end (delta: -14.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-07-22 17:38:11,094 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 45.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:38:11,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.48ms. Allocated memory is still 130.0MB. Free memory was 93.4MB in the beginning and 95.3MB in the end (delta: -1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 17:38:11,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.38ms. Allocated memory is still 130.0MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:38:11,095 INFO L158 Benchmark]: Boogie Preprocessor took 39.94ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 91.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:38:11,095 INFO L158 Benchmark]: RCFGBuilder took 339.55ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 76.3MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 17:38:11,096 INFO L158 Benchmark]: TraceAbstraction took 937.74ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 75.7MB in the beginning and 110.6MB in the end (delta: -35.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-07-22 17:38:11,096 INFO L158 Benchmark]: Witness Printer took 44.94ms. Allocated memory is still 180.4MB. Free memory was 110.6MB in the beginning and 107.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:38:11,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 45.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.48ms. Allocated memory is still 130.0MB. Free memory was 93.4MB in the beginning and 95.3MB in the end (delta: -1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.38ms. Allocated memory is still 130.0MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.94ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 91.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 339.55ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 76.3MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 937.74ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 75.7MB in the beginning and 110.6MB in the end (delta: -35.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 44.94ms. Allocated memory is still 180.4MB. Free memory was 110.6MB in the beginning and 107.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L105] int pumpRunning = 0; [L106] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L572] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L770] int waterLevel = 1; [L771] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L243] int splverifierCounter ; [L244] int tmp ; [L245] int tmp___0 ; [L246] int tmp___1 ; [L247] int tmp___2 ; [L250] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L252] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L254] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L260] tmp = __VERIFIER_nondet_int() [L262] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L264] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L788] COND TRUE waterLevel < 2 [L789] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L264] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L270] tmp___0 = __VERIFIER_nondet_int() [L272] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L280] tmp___2 = __VERIFIER_nondet_int() [L282] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L295] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] COND TRUE \read(systemActive) [L122] CALL processEnvironment() [L142] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L122] RET processEnvironment() [L128] CALL __utac_acc__Specification3_spec__1() [L851] int tmp ; [L852] int tmp___0 ; [L853] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] int retValue_acc ; [L812] retValue_acc = methaneLevelCritical [L813] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L857] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] tmp = isMethaneLevelCritical() [L859] COND FALSE !(\read(tmp)) [L863] CALL, EXPR getWaterLevel() [L841] int retValue_acc ; [L844] retValue_acc = waterLevel [L845] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L863] RET, EXPR getWaterLevel() [L863] tmp___0 = getWaterLevel() [L865] COND TRUE tmp___0 == 2 [L867] CALL, EXPR isPumpRunning() [L194] int retValue_acc ; [L197] retValue_acc = pumpRunning [L198] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L867] RET, EXPR isPumpRunning() [L867] tmp___1 = isPumpRunning() [L869] COND FALSE !(\read(tmp___1)) [L873] CALL __automaton_fail() [L92] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 618 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 259 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 359 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-22 17:38:11,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE