./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_product11.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 bd7f84863cb412e83f8c5773a09de3282aa45b8f86409f0c880aae27635b0b5f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:59:45,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:59:45,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:59:45,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:59:45,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:59:45,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:59:45,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:59:45,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:59:45,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:59:45,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:59:45,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:59:45,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:59:45,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:59:45,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:59:45,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:59:45,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:59:45,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:59:45,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:59:45,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:59:45,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:59:45,821 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:59:45,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:59:45,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:59:45,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:59:45,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:59:45,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:59:45,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:59:45,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:59:45,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:59:45,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:59:45,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:59:45,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:59:45,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:59:45,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:59:45,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:59:45,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:59:45,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:59:45,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:59:45,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:59:45,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:59:45,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:59:45,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:59:45,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:59:45,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:59:45,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:59:45,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:59:45,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:59:45,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:59:45,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:59:45,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:59:45,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:59:45,858 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:59:45,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:59:45,858 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:59:45,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:59:45,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:59:45,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:59:45,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:59:45,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:59:45,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:59:45,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:59:45,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:59:45,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:59:45,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:59:45,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:59:45,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:59:45,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:59:45,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:59:45,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:59:45,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:59:45,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:59:45,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:59:45,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:59:45,862 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:59:45,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:59:45,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:59:45,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd7f84863cb412e83f8c5773a09de3282aa45b8f86409f0c880aae27635b0b5f [2022-07-13 17:59:46,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:59:46,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:59:46,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:59:46,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:59:46,080 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:59:46,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c [2022-07-13 17:59:46,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0392aaf68/199fec08f65c41c1ac2bdb5e18c69332/FLAG712a7183e [2022-07-13 17:59:46,572 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:59:46,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c [2022-07-13 17:59:46,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0392aaf68/199fec08f65c41c1ac2bdb5e18c69332/FLAG712a7183e [2022-07-13 17:59:46,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0392aaf68/199fec08f65c41c1ac2bdb5e18c69332 [2022-07-13 17:59:46,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:59:46,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:59:46,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:59:46,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:59:46,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:59:46,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:59:46" (1/1) ... [2022-07-13 17:59:46,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a6dbcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:46, skipping insertion in model container [2022-07-13 17:59:46,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:59:46" (1/1) ... [2022-07-13 17:59:46,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:59:46,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:59:46,804 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_product11.cil.c[1605,1618] [2022-07-13 17:59:46,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:59:46,973 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:59:46,982 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_product11.cil.c[1605,1618] [2022-07-13 17:59:47,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:59:47,045 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:59:47,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47 WrapperNode [2022-07-13 17:59:47,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:59:47,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:59:47,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:59:47,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:59:47,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,086 INFO L137 Inliner]: procedures = 51, calls = 148, calls flagged for inlining = 22, calls inlined = 16, statements flattened = 193 [2022-07-13 17:59:47,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:59:47,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:59:47,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:59:47,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:59:47,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:59:47,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:59:47,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:59:47,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:59:47,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (1/1) ... [2022-07-13 17:59:47,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:59:47,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:59:47,160 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) [2022-07-13 17:59:47,168 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 [2022-07-13 17:59:47,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:59:47,190 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 17:59:47,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 17:59:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 17:59:47,191 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 17:59:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-13 17:59:47,191 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-13 17:59:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:59:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-13 17:59:47,192 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-13 17:59:47,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:59:47,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:59:47,279 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:59:47,281 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:59:47,503 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:59:47,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:59:47,509 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 17:59:47,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:47 BoogieIcfgContainer [2022-07-13 17:59:47,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:59:47,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:59:47,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:59:47,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:59:47,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:59:46" (1/3) ... [2022-07-13 17:59:47,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb5eb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:59:47, skipping insertion in model container [2022-07-13 17:59:47,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:47" (2/3) ... [2022-07-13 17:59:47,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb5eb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:59:47, skipping insertion in model container [2022-07-13 17:59:47,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:47" (3/3) ... [2022-07-13 17:59:47,518 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product11.cil.c [2022-07-13 17:59:47,531 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:59:47,531 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:59:47,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:59:47,605 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@63edcf31, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@63cefe48 [2022-07-13 17:59:47,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:59:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 50 states have (on average 1.4) internal successors, (70), 54 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 17:59:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 17:59:47,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:47,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:59:47,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:47,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:47,622 INFO L85 PathProgramCache]: Analyzing trace with hash -192528358, now seen corresponding path program 1 times [2022-07-13 17:59:47,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:47,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928180037] [2022-07-13 17:59:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:47,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:47,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:47,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928180037] [2022-07-13 17:59:47,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928180037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:47,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:47,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:59:47,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135201165] [2022-07-13 17:59:47,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:47,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:59:47,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:59:47,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 17:59:47,813 INFO L87 Difference]: Start difference. First operand has 62 states, 50 states have (on average 1.4) internal successors, (70), 54 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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) [2022-07-13 17:59:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:47,841 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2022-07-13 17:59:47,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:59:47,843 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 [2022-07-13 17:59:47,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:47,848 INFO L225 Difference]: With dead ends: 116 [2022-07-13 17:59:47,849 INFO L226 Difference]: Without dead ends: 53 [2022-07-13 17:59:47,851 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:59:47,854 INFO L413 NwaCegarLoop]: 76 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, 76 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 [2022-07-13 17:59:47,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:47,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-07-13 17:59:47,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-07-13 17:59:47,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.302325581395349) internal successors, (56), 46 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-13 17:59:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2022-07-13 17:59:47,884 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 19 [2022-07-13 17:59:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:47,884 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2022-07-13 17:59:47,885 INFO L496 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) [2022-07-13 17:59:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2022-07-13 17:59:47,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 17:59:47,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:47,887 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] [2022-07-13 17:59:47,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:59:47,887 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:47,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1987482606, now seen corresponding path program 1 times [2022-07-13 17:59:47,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:47,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702213960] [2022-07-13 17:59:47,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:47,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:47,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:47,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:47,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702213960] [2022-07-13 17:59:47,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702213960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:47,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:47,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 17:59:47,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414954254] [2022-07-13 17:59:47,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:47,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:59:47,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:47,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:59:47,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:47,981 INFO L87 Difference]: Start difference. First operand 53 states and 67 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) [2022-07-13 17:59:48,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:48,002 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2022-07-13 17:59:48,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:59:48,003 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 [2022-07-13 17:59:48,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:48,004 INFO L225 Difference]: With dead ends: 68 [2022-07-13 17:59:48,004 INFO L226 Difference]: Without dead ends: 44 [2022-07-13 17:59:48,005 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:59:48,006 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 17 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 87 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 [2022-07-13 17:59:48,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-13 17:59:48,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-07-13 17:59:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 40 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-13 17:59:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2022-07-13 17:59:48,014 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 20 [2022-07-13 17:59:48,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:48,014 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2022-07-13 17:59:48,014 INFO L496 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) [2022-07-13 17:59:48,014 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2022-07-13 17:59:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-13 17:59:48,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:48,015 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] [2022-07-13 17:59:48,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:59:48,016 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:48,016 INFO L85 PathProgramCache]: Analyzing trace with hash -296029766, now seen corresponding path program 1 times [2022-07-13 17:59:48,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:48,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031440126] [2022-07-13 17:59:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:48,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:48,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:48,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031440126] [2022-07-13 17:59:48,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031440126] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:48,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:48,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:59:48,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259221086] [2022-07-13 17:59:48,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:48,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:59:48,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:48,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:59:48,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:48,124 INFO L87 Difference]: Start difference. First operand 44 states and 55 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) [2022-07-13 17:59:48,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:48,142 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2022-07-13 17:59:48,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:59:48,143 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 [2022-07-13 17:59:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:48,147 INFO L225 Difference]: With dead ends: 117 [2022-07-13 17:59:48,148 INFO L226 Difference]: Without dead ends: 80 [2022-07-13 17:59:48,149 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:59:48,150 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 35 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:48,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 102 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-07-13 17:59:48,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2022-07-13 17:59:48,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-13 17:59:48,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-07-13 17:59:48,171 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 24 [2022-07-13 17:59:48,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:48,171 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-07-13 17:59:48,171 INFO L496 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) [2022-07-13 17:59:48,171 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-07-13 17:59:48,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 17:59:48,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:48,173 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] [2022-07-13 17:59:48,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:59:48,174 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:48,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:48,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1716566345, now seen corresponding path program 1 times [2022-07-13 17:59:48,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:48,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544474273] [2022-07-13 17:59:48,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:48,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:48,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:48,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544474273] [2022-07-13 17:59:48,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544474273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:48,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:48,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:59:48,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391615752] [2022-07-13 17:59:48,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:48,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:59:48,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:48,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:59:48,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:59:48,279 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 17:59:48,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:48,445 INFO L93 Difference]: Finished difference Result 243 states and 329 transitions. [2022-07-13 17:59:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:59:48,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-13 17:59:48,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:48,451 INFO L225 Difference]: With dead ends: 243 [2022-07-13 17:59:48,454 INFO L226 Difference]: Without dead ends: 175 [2022-07-13 17:59:48,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:59:48,458 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:48,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 284 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:59:48,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-07-13 17:59:48,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 133. [2022-07-13 17:59:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 110 states have (on average 1.3454545454545455) internal successors, (148), 119 states have internal predecessors, (148), 10 states have call successors, (10), 10 states have call predecessors, (10), 12 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2022-07-13 17:59:48,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 172 transitions. [2022-07-13 17:59:48,484 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 172 transitions. Word has length 25 [2022-07-13 17:59:48,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:48,485 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 172 transitions. [2022-07-13 17:59:48,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 17:59:48,485 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 172 transitions. [2022-07-13 17:59:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-13 17:59:48,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:48,489 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] [2022-07-13 17:59:48,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:59:48,490 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:48,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1833945412, now seen corresponding path program 1 times [2022-07-13 17:59:48,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:48,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842228179] [2022-07-13 17:59:48,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:48,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:48,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:48,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842228179] [2022-07-13 17:59:48,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842228179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:48,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:48,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:59:48,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839706383] [2022-07-13 17:59:48,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:48,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:59:48,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:48,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:59:48,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:48,552 INFO L87 Difference]: Start difference. First operand 133 states and 172 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2022-07-13 17:59:48,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:48,562 INFO L93 Difference]: Finished difference Result 249 states and 327 transitions. [2022-07-13 17:59:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:59:48,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 27 [2022-07-13 17:59:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:48,564 INFO L225 Difference]: With dead ends: 249 [2022-07-13 17:59:48,564 INFO L226 Difference]: Without dead ends: 123 [2022-07-13 17:59:48,565 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:59:48,566 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 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 [2022-07-13 17:59:48,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:48,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-07-13 17:59:48,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-07-13 17:59:48,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.28) internal successors, (128), 109 states have internal predecessors, (128), 10 states have call successors, (10), 10 states have call predecessors, (10), 12 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-13 17:59:48,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 150 transitions. [2022-07-13 17:59:48,576 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 150 transitions. Word has length 27 [2022-07-13 17:59:48,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:48,577 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 150 transitions. [2022-07-13 17:59:48,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2022-07-13 17:59:48,577 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 150 transitions. [2022-07-13 17:59:48,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-13 17:59:48,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:48,578 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] [2022-07-13 17:59:48,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:59:48,579 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:48,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:48,580 INFO L85 PathProgramCache]: Analyzing trace with hash 957939555, now seen corresponding path program 1 times [2022-07-13 17:59:48,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:48,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763781749] [2022-07-13 17:59:48,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:48,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 17:59:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:48,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:48,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763781749] [2022-07-13 17:59:48,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763781749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:48,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:48,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:59:48,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847538944] [2022-07-13 17:59:48,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:48,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:59:48,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:48,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:59:48,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:59:48,691 INFO L87 Difference]: Start difference. First operand 123 states and 150 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-07-13 17:59:48,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:48,864 INFO L93 Difference]: Finished difference Result 355 states and 445 transitions. [2022-07-13 17:59:48,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 17:59:48,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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 29 [2022-07-13 17:59:48,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:48,867 INFO L225 Difference]: With dead ends: 355 [2022-07-13 17:59:48,867 INFO L226 Difference]: Without dead ends: 239 [2022-07-13 17:59:48,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-07-13 17:59:48,869 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 142 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:48,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 244 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:59:48,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-07-13 17:59:48,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 180. [2022-07-13 17:59:48,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 145 states have (on average 1.2689655172413794) internal successors, (184), 158 states have internal predecessors, (184), 16 states have call successors, (16), 16 states have call predecessors, (16), 18 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-07-13 17:59:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 218 transitions. [2022-07-13 17:59:48,893 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 218 transitions. Word has length 29 [2022-07-13 17:59:48,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:48,893 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 218 transitions. [2022-07-13 17:59:48,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-07-13 17:59:48,893 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 218 transitions. [2022-07-13 17:59:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-13 17:59:48,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:48,895 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-13 17:59:48,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 17:59:48,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:48,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:48,901 INFO L85 PathProgramCache]: Analyzing trace with hash -426576330, now seen corresponding path program 1 times [2022-07-13 17:59:48,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:48,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071416341] [2022-07-13 17:59:48,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:48,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 17:59:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:59:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:59:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 17:59:48,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:48,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071416341] [2022-07-13 17:59:48,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071416341] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:59:48,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843391222] [2022-07-13 17:59:48,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:48,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:59:48,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:59:48,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 17:59:48,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 17:59:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:49,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 17:59:49,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:59:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 17:59:49,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 17:59:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:49,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843391222] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 17:59:49,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 17:59:49,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 14 [2022-07-13 17:59:49,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812490984] [2022-07-13 17:59:49,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 17:59:49,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 17:59:49,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:49,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 17:59:49,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:59:49,535 INFO L87 Difference]: Start difference. First operand 180 states and 218 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 17:59:49,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:49,690 INFO L93 Difference]: Finished difference Result 237 states and 290 transitions. [2022-07-13 17:59:49,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:59:49,691 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 51 [2022-07-13 17:59:49,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:49,693 INFO L225 Difference]: With dead ends: 237 [2022-07-13 17:59:49,693 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 17:59:49,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2022-07-13 17:59:49,695 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 129 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:49,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 372 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:59:49,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 17:59:49,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 17:59:49,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 17:59:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 17:59:49,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2022-07-13 17:59:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:49,699 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 17:59:49,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 17:59:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 17:59:49,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 17:59:49,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 17:59:49,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 17:59:49,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:59:49,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 17:59:50,538 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 332 343) no Hoare annotation was computed. [2022-07-13 17:59:50,538 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 332 343) the Hoare annotation is: true [2022-07-13 17:59:50,538 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 332 343) no Hoare annotation was computed. [2022-07-13 17:59:50,538 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 387 416) no Hoare annotation was computed. [2022-07-13 17:59:50,538 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 387 416) the Hoare annotation is: true [2022-07-13 17:59:50,538 INFO L902 garLoopResultBuilder]: At program point L412(lines 387 416) the Hoare annotation is: true [2022-07-13 17:59:50,539 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-07-13 17:59:50,539 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 405) no Hoare annotation was computed. [2022-07-13 17:59:50,539 INFO L902 garLoopResultBuilder]: At program point L401-1(lines 401 405) the Hoare annotation is: true [2022-07-13 17:59:50,539 INFO L899 garLoopResultBuilder]: For program point L398(line 398) no Hoare annotation was computed. [2022-07-13 17:59:50,539 INFO L902 garLoopResultBuilder]: At program point L397-2(lines 397 411) the Hoare annotation is: true [2022-07-13 17:59:50,539 INFO L902 garLoopResultBuilder]: At program point L393(line 393) the Hoare annotation is: true [2022-07-13 17:59:50,539 INFO L899 garLoopResultBuilder]: For program point L393-1(line 393) no Hoare annotation was computed. [2022-07-13 17:59:50,539 INFO L895 garLoopResultBuilder]: At program point L153(lines 148 156) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-13 17:59:50,539 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 316) no Hoare annotation was computed. [2022-07-13 17:59:50,539 INFO L895 garLoopResultBuilder]: At program point L312-2(lines 308 319) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-13 17:59:50,539 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-07-13 17:59:50,540 INFO L899 garLoopResultBuilder]: For program point L83-1(lines 83 89) no Hoare annotation was computed. [2022-07-13 17:59:50,540 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 72 95) no Hoare annotation was computed. [2022-07-13 17:59:50,540 INFO L895 garLoopResultBuilder]: At program point L100(lines 96 102) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-07-13 17:59:50,540 INFO L899 garLoopResultBuilder]: For program point L292(lines 292 298) no Hoare annotation was computed. [2022-07-13 17:59:50,540 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 301) no Hoare annotation was computed. [2022-07-13 17:59:50,540 INFO L895 garLoopResultBuilder]: At program point L288-1(lines 280 304) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~2#1| 0))) (.cse2 (not (= |timeShift_getWaterLevel_#res#1| 0)))) (and (or .cse0 (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 (= ~waterLevel~0 1))))) [2022-07-13 17:59:50,540 INFO L895 garLoopResultBuilder]: At program point L381(lines 376 384) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse0 (not (= |timeShift_getWaterLevel_#res#1| 0)))) (and (or (and .cse0 (= ~waterLevel~0 1)) .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse1 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 17:59:50,540 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-13 17:59:50,540 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 72 95) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-07-13 17:59:50,540 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 75 94) no Hoare annotation was computed. [2022-07-13 17:59:50,541 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 72 95) no Hoare annotation was computed. [2022-07-13 17:59:50,541 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-07-13 17:59:50,541 INFO L895 garLoopResultBuilder]: At program point L258-2(lines 252 265) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-07-13 17:59:50,541 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 248) no Hoare annotation was computed. [2022-07-13 17:59:50,541 INFO L899 garLoopResultBuilder]: For program point L242-1(lines 242 248) no Hoare annotation was computed. [2022-07-13 17:59:50,541 INFO L895 garLoopResultBuilder]: At program point L205(lines 193 207) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-07-13 17:59:50,541 INFO L895 garLoopResultBuilder]: At program point L267(lines 222 269) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-07-13 17:59:50,541 INFO L895 garLoopResultBuilder]: At program point L234(line 234) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-07-13 17:59:50,541 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 203) no Hoare annotation was computed. [2022-07-13 17:59:50,541 INFO L899 garLoopResultBuilder]: For program point L197-2(lines 197 203) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L895 garLoopResultBuilder]: At program point L866(lines 862 868) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2022-07-13 17:59:50,542 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L895 garLoopResultBuilder]: At program point L445(lines 441 447) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2022-07-13 17:59:50,542 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L899 garLoopResultBuilder]: For program point L223(lines 222 269) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L899 garLoopResultBuilder]: For program point L252(lines 252 265) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L899 garLoopResultBuilder]: For program point L471(lines 471 478) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L899 garLoopResultBuilder]: For program point L471-2(lines 471 478) no Hoare annotation was computed. [2022-07-13 17:59:50,542 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-07-13 17:59:50,542 INFO L902 garLoopResultBuilder]: At program point L273(lines 212 277) the Hoare annotation is: true [2022-07-13 17:59:50,543 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 238) no Hoare annotation was computed. [2022-07-13 17:59:50,543 INFO L899 garLoopResultBuilder]: For program point L232-1(lines 232 238) no Hoare annotation was computed. [2022-07-13 17:59:50,543 INFO L902 garLoopResultBuilder]: At program point L455(lines 448 457) the Hoare annotation is: true [2022-07-13 17:59:50,543 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 228) no Hoare annotation was computed. [2022-07-13 17:59:50,543 INFO L902 garLoopResultBuilder]: At program point L480(lines 461 483) the Hoare annotation is: true [2022-07-13 17:59:50,543 INFO L895 garLoopResultBuilder]: At program point L881(lines 876 884) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2022-07-13 17:59:50,543 INFO L895 garLoopResultBuilder]: At program point L270(lines 221 271) the Hoare annotation is: false [2022-07-13 17:59:50,543 INFO L895 garLoopResultBuilder]: At program point L873(lines 869 875) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) [2022-07-13 17:59:50,543 INFO L895 garLoopResultBuilder]: At program point L134(lines 129 136) the Hoare annotation is: false [2022-07-13 17:59:50,543 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 264) no Hoare annotation was computed. [2022-07-13 17:59:50,543 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 320 331) no Hoare annotation was computed. [2022-07-13 17:59:50,544 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 320 331) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-07-13 17:59:50,544 INFO L899 garLoopResultBuilder]: For program point L324-1(lines 320 331) no Hoare annotation was computed. [2022-07-13 17:59:50,546 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:59:50,553 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 17:59:50,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 05:59:50 BoogieIcfgContainer [2022-07-13 17:59:50,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 17:59:50,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 17:59:50,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 17:59:50,585 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 17:59:50,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:47" (3/4) ... [2022-07-13 17:59:50,588 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 17:59:50,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-13 17:59:50,593 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-13 17:59:50,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-13 17:59:50,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-13 17:59:50,601 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-07-13 17:59:50,602 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-13 17:59:50,602 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 17:59:50,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 17:59:50,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 17:59:50,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:59:50,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:59:50,629 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) [2022-07-13 17:59:50,629 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel))) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) [2022-07-13 17:59:50,630 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && waterLevel == 1) || !(pumpRunning == 0)) || !(\old(waterLevel) == 1)) && ((!(pumpRunning == 0) || (!(\result == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-07-13 17:59:50,631 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || ((!(tmp == 0) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || ((!(tmp == 0) && !(\result == 0)) && waterLevel == 1)) [2022-07-13 17:59:50,631 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) [2022-07-13 17:59:50,632 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) [2022-07-13 17:59:50,664 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 17:59:50,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 17:59:50,666 INFO L158 Benchmark]: Toolchain (without parser) took 4069.65ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 54.9MB in the beginning and 80.4MB in the end (delta: -25.5MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-07-13 17:59:50,666 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:59:50,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.68ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 54.7MB in the beginning and 83.7MB in the end (delta: -29.0MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-07-13 17:59:50,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.67ms. Allocated memory is still 115.3MB. Free memory was 83.7MB in the beginning and 81.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 17:59:50,668 INFO L158 Benchmark]: Boogie Preprocessor took 47.95ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 80.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:59:50,668 INFO L158 Benchmark]: RCFGBuilder took 375.48ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 65.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 17:59:50,668 INFO L158 Benchmark]: TraceAbstraction took 3071.54ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 65.3MB in the beginning and 84.6MB in the end (delta: -19.3MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2022-07-13 17:59:50,669 INFO L158 Benchmark]: Witness Printer took 79.72ms. Allocated memory is still 138.4MB. Free memory was 84.6MB in the beginning and 80.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 17:59:50,672 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 90.2MB. Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.68ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 54.7MB in the beginning and 83.7MB in the end (delta: -29.0MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.67ms. Allocated memory is still 115.3MB. Free memory was 83.7MB in the beginning and 81.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.95ms. Allocated memory is still 115.3MB. Free memory was 81.3MB in the beginning and 80.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 375.48ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 65.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3071.54ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 65.3MB in the beginning and 84.6MB in the end (delta: -19.3MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Witness Printer took 79.72ms. Allocated memory is still 138.4MB. Free memory was 84.6MB in the beginning and 80.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 54]: 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 5 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 473 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 468 mSDsluCounter, 1211 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 810 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 401 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=6, InterpolantAutomatonStates: 41, 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, 7 MinimizatonAttempts, 106 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 226 PreInvPairs, 260 NumberOfFragments, 336 HoareAnnotationTreeSize, 226 FomulaSimplifications, 259 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 28 FomulaSimplificationsInter, 2006 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 769 SizeOfPredicates, 0 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 51/57 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: 876]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 448]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel))) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 222]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 869]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 221]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && waterLevel == systemActive - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 212]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || ((!(tmp == 0) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || ((!(tmp == 0) && !(\result == 0)) && waterLevel == 1)) - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: (((!(\result == 0) && waterLevel == 1) || !(pumpRunning == 0)) || !(\old(waterLevel) == 1)) && ((!(pumpRunning == 0) || (!(\result == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-13 17:59:50,730 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