./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product44.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 cb53e49317620dbde25b1d7f6fa7078b4950e13e4d138c624b27be1c4ee0f3ad --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 04:59:37,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 04:59:37,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 04:59:37,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 04:59:37,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 04:59:37,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 04:59:37,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 04:59:37,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 04:59:37,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 04:59:37,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 04:59:37,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 04:59:37,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 04:59:37,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 04:59:37,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 04:59:37,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 04:59:37,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 04:59:37,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 04:59:37,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 04:59:37,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 04:59:37,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 04:59:37,541 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 04:59:37,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 04:59:37,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 04:59:37,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 04:59:37,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 04:59:37,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 04:59:37,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 04:59:37,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 04:59:37,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 04:59:37,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 04:59:37,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 04:59:37,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 04:59:37,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 04:59:37,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 04:59:37,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 04:59:37,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 04:59:37,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 04:59:37,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 04:59:37,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 04:59:37,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 04:59:37,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 04:59:37,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 04:59:37,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 04:59:37,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 04:59:37,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 04:59:37,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 04:59:37,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 04:59:37,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 04:59:37,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 04:59:37,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 04:59:37,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 04:59:37,610 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 04:59:37,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 04:59:37,611 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 04:59:37,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 04:59:37,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 04:59:37,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 04:59:37,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 04:59:37,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 04:59:37,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 04:59:37,612 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 04:59:37,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 04:59:37,613 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 04:59:37,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 04:59:37,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 04:59:37,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 04:59:37,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 04:59:37,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:59:37,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 04:59:37,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 04:59:37,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 04:59:37,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 04:59:37,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 04:59:37,615 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 04:59:37,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 04:59:37,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 04:59:37,615 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb53e49317620dbde25b1d7f6fa7078b4950e13e4d138c624b27be1c4ee0f3ad [2022-07-21 04:59:37,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 04:59:37,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 04:59:37,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 04:59:37,978 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 04:59:37,983 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 04:59:37,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2022-07-21 04:59:38,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fba4ab7/37dc32dec5754b97984b6b9c8e4f443f/FLAG647d7dd9a [2022-07-21 04:59:38,557 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 04:59:38,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2022-07-21 04:59:38,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fba4ab7/37dc32dec5754b97984b6b9c8e4f443f/FLAG647d7dd9a [2022-07-21 04:59:38,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fba4ab7/37dc32dec5754b97984b6b9c8e4f443f [2022-07-21 04:59:38,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 04:59:38,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 04:59:38,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 04:59:38,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 04:59:38,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 04:59:38,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:59:38" (1/1) ... [2022-07-21 04:59:38,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486f560a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:38, skipping insertion in model container [2022-07-21 04:59:38,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:59:38" (1/1) ... [2022-07-21 04:59:38,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 04:59:38,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 04:59:39,038 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_spec1_product44.cil.c[1605,1618] [2022-07-21 04:59:39,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:59:39,250 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 04:59:39,266 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_spec1_product44.cil.c[1605,1618] [2022-07-21 04:59:39,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:59:39,356 INFO L208 MainTranslator]: Completed translation [2022-07-21 04:59:39,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39 WrapperNode [2022-07-21 04:59:39,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 04:59:39,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 04:59:39,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 04:59:39,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 04:59:39,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,418 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 244 [2022-07-21 04:59:39,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 04:59:39,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 04:59:39,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 04:59:39,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 04:59:39,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 04:59:39,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 04:59:39,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 04:59:39,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 04:59:39,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (1/1) ... [2022-07-21 04:59:39,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:59:39,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:59:39,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 04:59:39,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 04:59:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 04:59:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 04:59:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 04:59:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-21 04:59:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-21 04:59:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 04:59:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 04:59:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 04:59:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 04:59:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 04:59:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 04:59:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 04:59:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 04:59:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 04:59:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 04:59:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 04:59:39,619 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 04:59:39,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 04:59:39,913 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 04:59:39,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 04:59:39,926 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 04:59:39,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:59:39 BoogieIcfgContainer [2022-07-21 04:59:39,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 04:59:39,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 04:59:39,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 04:59:39,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 04:59:39,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:59:38" (1/3) ... [2022-07-21 04:59:39,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea0ad48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:59:39, skipping insertion in model container [2022-07-21 04:59:39,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:59:39" (2/3) ... [2022-07-21 04:59:39,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea0ad48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:59:39, skipping insertion in model container [2022-07-21 04:59:39,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:59:39" (3/3) ... [2022-07-21 04:59:39,935 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2022-07-21 04:59:39,947 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 04:59:39,947 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 04:59:40,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 04:59:40,013 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@14f6ac37, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@75da9daa [2022-07-21 04:59:40,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 04:59:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 66 states have (on average 1.378787878787879) internal successors, (91), 72 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-21 04:59:40,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-21 04:59:40,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:40,034 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] [2022-07-21 04:59:40,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:40,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:40,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1891059469, now seen corresponding path program 1 times [2022-07-21 04:59:40,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:40,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213356256] [2022-07-21 04:59:40,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:40,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:40,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 04:59:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:40,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 04:59:40,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:40,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213356256] [2022-07-21 04:59:40,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213356256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:40,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:40,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 04:59:40,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590439451] [2022-07-21 04:59:40,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:40,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 04:59:40,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:40,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 04:59:40,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 04:59:40,315 INFO L87 Difference]: Start difference. First operand has 84 states, 66 states have (on average 1.378787878787879) internal successors, (91), 72 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 04:59:40,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:40,352 INFO L93 Difference]: Finished difference Result 160 states and 217 transitions. [2022-07-21 04:59:40,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 04:59:40,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-07-21 04:59:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:40,362 INFO L225 Difference]: With dead ends: 160 [2022-07-21 04:59:40,362 INFO L226 Difference]: Without dead ends: 75 [2022-07-21 04:59:40,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 04:59:40,369 INFO L413 NwaCegarLoop]: 105 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, 105 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:40,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:59:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-07-21 04:59:40,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-07-21 04:59:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.305084745762712) internal successors, (77), 64 states have internal predecessors, (77), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-21 04:59:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-07-21 04:59:40,424 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 23 [2022-07-21 04:59:40,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:40,425 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-07-21 04:59:40,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 04:59:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-07-21 04:59:40,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-21 04:59:40,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:40,430 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] [2022-07-21 04:59:40,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 04:59:40,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:40,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1547357138, now seen corresponding path program 1 times [2022-07-21 04:59:40,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:40,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035687373] [2022-07-21 04:59:40,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:40,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 04:59:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:40,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 04:59:40,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:40,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035687373] [2022-07-21 04:59:40,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035687373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:40,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:40,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 04:59:40,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401494609] [2022-07-21 04:59:40,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:40,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:59:40,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:40,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:59:40,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 04:59:40,534 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 04:59:40,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:40,550 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2022-07-21 04:59:40,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:59:40,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-07-21 04:59:40,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:40,554 INFO L225 Difference]: With dead ends: 111 [2022-07-21 04:59:40,557 INFO L226 Difference]: Without dead ends: 66 [2022-07-21 04:59:40,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 04:59:40,563 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 18 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:40,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:59:40,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-07-21 04:59:40,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-07-21 04:59:40,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.320754716981132) internal successors, (70), 58 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-21 04:59:40,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2022-07-21 04:59:40,574 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 24 [2022-07-21 04:59:40,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:40,574 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2022-07-21 04:59:40,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 04:59:40,574 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2022-07-21 04:59:40,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-21 04:59:40,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:40,583 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] [2022-07-21 04:59:40,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 04:59:40,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:40,585 INFO L85 PathProgramCache]: Analyzing trace with hash 628813452, now seen corresponding path program 1 times [2022-07-21 04:59:40,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:40,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281793592] [2022-07-21 04:59:40,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:40,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:40,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 04:59:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 04:59:40,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:40,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281793592] [2022-07-21 04:59:40,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281793592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:40,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:40,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 04:59:40,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480198799] [2022-07-21 04:59:40,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:40,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:59:40,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:40,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:59:40,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:59:40,720 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-07-21 04:59:40,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:40,846 INFO L93 Difference]: Finished difference Result 164 states and 213 transitions. [2022-07-21 04:59:40,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 04:59:40,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 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 [2022-07-21 04:59:40,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:40,848 INFO L225 Difference]: With dead ends: 164 [2022-07-21 04:59:40,848 INFO L226 Difference]: Without dead ends: 105 [2022-07-21 04:59:40,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 04:59:40,850 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 152 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:40,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 285 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:59:40,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-21 04:59:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 100. [2022-07-21 04:59:40,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 86 states have internal predecessors, (106), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 11 states have call successors, (12) [2022-07-21 04:59:40,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 129 transitions. [2022-07-21 04:59:40,869 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 129 transitions. Word has length 29 [2022-07-21 04:59:40,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:40,870 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 129 transitions. [2022-07-21 04:59:40,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-07-21 04:59:40,870 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2022-07-21 04:59:40,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-21 04:59:40,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:40,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:40,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 04:59:40,874 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:40,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:40,875 INFO L85 PathProgramCache]: Analyzing trace with hash -470396509, now seen corresponding path program 1 times [2022-07-21 04:59:40,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:40,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298156079] [2022-07-21 04:59:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:40,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 04:59:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 04:59:40,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:40,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298156079] [2022-07-21 04:59:40,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298156079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:40,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:40,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:59:40,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536779766] [2022-07-21 04:59:40,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:40,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:59:40,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:40,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:59:40,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:59:40,972 INFO L87 Difference]: Start difference. First operand 100 states and 129 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 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) [2022-07-21 04:59:41,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:41,105 INFO L93 Difference]: Finished difference Result 286 states and 380 transitions. [2022-07-21 04:59:41,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:59:41,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-21 04:59:41,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:41,110 INFO L225 Difference]: With dead ends: 286 [2022-07-21 04:59:41,111 INFO L226 Difference]: Without dead ends: 193 [2022-07-21 04:59:41,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:59:41,121 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 55 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:41,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 401 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:59:41,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-21 04:59:41,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2022-07-21 04:59:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 146 states have (on average 1.3287671232876712) internal successors, (194), 159 states have internal predecessors, (194), 22 states have call successors, (22), 18 states have call predecessors, (22), 18 states have return successors, (26), 20 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-21 04:59:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 242 transitions. [2022-07-21 04:59:41,161 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 242 transitions. Word has length 32 [2022-07-21 04:59:41,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:41,161 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 242 transitions. [2022-07-21 04:59:41,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 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) [2022-07-21 04:59:41,162 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 242 transitions. [2022-07-21 04:59:41,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 04:59:41,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:41,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:41,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 04:59:41,170 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:41,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:41,171 INFO L85 PathProgramCache]: Analyzing trace with hash 957364455, now seen corresponding path program 1 times [2022-07-21 04:59:41,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:41,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823742611] [2022-07-21 04:59:41,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:41,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:59:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 04:59:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 04:59:41,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:41,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823742611] [2022-07-21 04:59:41,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823742611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:41,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:41,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:59:41,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969388466] [2022-07-21 04:59:41,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:41,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:59:41,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:41,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:59:41,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:59:41,261 INFO L87 Difference]: Start difference. First operand 187 states and 242 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 04:59:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:41,491 INFO L93 Difference]: Finished difference Result 448 states and 592 transitions. [2022-07-21 04:59:41,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:59:41,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-07-21 04:59:41,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:41,494 INFO L225 Difference]: With dead ends: 448 [2022-07-21 04:59:41,494 INFO L226 Difference]: Without dead ends: 268 [2022-07-21 04:59:41,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:59:41,496 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 106 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:41,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 188 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 04:59:41,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-07-21 04:59:41,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 259. [2022-07-21 04:59:41,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 200 states have (on average 1.275) internal successors, (255), 217 states have internal predecessors, (255), 30 states have call successors, (30), 28 states have call predecessors, (30), 28 states have return successors, (41), 30 states have call predecessors, (41), 30 states have call successors, (41) [2022-07-21 04:59:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 326 transitions. [2022-07-21 04:59:41,523 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 326 transitions. Word has length 36 [2022-07-21 04:59:41,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:41,524 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 326 transitions. [2022-07-21 04:59:41,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 04:59:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 326 transitions. [2022-07-21 04:59:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 04:59:41,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:41,526 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:41,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 04:59:41,527 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:41,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1719205349, now seen corresponding path program 1 times [2022-07-21 04:59:41,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:41,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203919380] [2022-07-21 04:59:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:41,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:59:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 04:59:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 04:59:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:59:41,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:41,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203919380] [2022-07-21 04:59:41,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203919380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:41,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:41,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 04:59:41,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639930141] [2022-07-21 04:59:41,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:41,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:59:41,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:59:41,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 04:59:41,615 INFO L87 Difference]: Start difference. First operand 259 states and 326 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 04:59:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:41,725 INFO L93 Difference]: Finished difference Result 515 states and 649 transitions. [2022-07-21 04:59:41,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:59:41,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2022-07-21 04:59:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:41,727 INFO L225 Difference]: With dead ends: 515 [2022-07-21 04:59:41,727 INFO L226 Difference]: Without dead ends: 263 [2022-07-21 04:59:41,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:59:41,729 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 82 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:41,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 173 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:59:41,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-07-21 04:59:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 259. [2022-07-21 04:59:41,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 200 states have (on average 1.265) internal successors, (253), 217 states have internal predecessors, (253), 30 states have call successors, (30), 28 states have call predecessors, (30), 28 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-21 04:59:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 320 transitions. [2022-07-21 04:59:41,751 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 320 transitions. Word has length 53 [2022-07-21 04:59:41,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:41,752 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 320 transitions. [2022-07-21 04:59:41,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 04:59:41,753 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 320 transitions. [2022-07-21 04:59:41,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 04:59:41,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:41,754 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:41,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 04:59:41,755 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:41,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:41,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1119323940, now seen corresponding path program 1 times [2022-07-21 04:59:41,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:41,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271258114] [2022-07-21 04:59:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:41,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:59:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:59:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:59:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:59:41,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:41,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271258114] [2022-07-21 04:59:41,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271258114] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:41,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:41,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 04:59:41,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924919561] [2022-07-21 04:59:41,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:41,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 04:59:41,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:41,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 04:59:41,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 04:59:41,817 INFO L87 Difference]: Start difference. First operand 259 states and 320 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 04:59:42,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:42,013 INFO L93 Difference]: Finished difference Result 555 states and 699 transitions. [2022-07-21 04:59:42,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 04:59:42,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2022-07-21 04:59:42,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:42,016 INFO L225 Difference]: With dead ends: 555 [2022-07-21 04:59:42,016 INFO L226 Difference]: Without dead ends: 303 [2022-07-21 04:59:42,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:59:42,018 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 84 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:42,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 209 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:59:42,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-07-21 04:59:42,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 265. [2022-07-21 04:59:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 206 states have (on average 1.2572815533980584) internal successors, (259), 223 states have internal predecessors, (259), 30 states have call successors, (30), 28 states have call predecessors, (30), 28 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-21 04:59:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 326 transitions. [2022-07-21 04:59:42,035 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 326 transitions. Word has length 50 [2022-07-21 04:59:42,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:42,035 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 326 transitions. [2022-07-21 04:59:42,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 04:59:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 326 transitions. [2022-07-21 04:59:42,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 04:59:42,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:42,037 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:42,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 04:59:42,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:42,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:42,038 INFO L85 PathProgramCache]: Analyzing trace with hash 985310434, now seen corresponding path program 1 times [2022-07-21 04:59:42,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:42,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356135637] [2022-07-21 04:59:42,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:42,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:59:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:59:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:59:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:59:42,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:42,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356135637] [2022-07-21 04:59:42,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356135637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:42,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:42,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:59:42,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005815600] [2022-07-21 04:59:42,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:42,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:59:42,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:42,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:59:42,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:59:42,108 INFO L87 Difference]: Start difference. First operand 265 states and 326 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 04:59:42,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:42,349 INFO L93 Difference]: Finished difference Result 573 states and 719 transitions. [2022-07-21 04:59:42,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:59:42,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2022-07-21 04:59:42,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:42,351 INFO L225 Difference]: With dead ends: 573 [2022-07-21 04:59:42,352 INFO L226 Difference]: Without dead ends: 315 [2022-07-21 04:59:42,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-07-21 04:59:42,354 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 130 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:42,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 183 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 04:59:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-07-21 04:59:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 269. [2022-07-21 04:59:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 210 states have (on average 1.2523809523809524) internal successors, (263), 227 states have internal predecessors, (263), 30 states have call successors, (30), 28 states have call predecessors, (30), 28 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-21 04:59:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 330 transitions. [2022-07-21 04:59:42,375 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 330 transitions. Word has length 50 [2022-07-21 04:59:42,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:42,375 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 330 transitions. [2022-07-21 04:59:42,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 04:59:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 330 transitions. [2022-07-21 04:59:42,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 04:59:42,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:42,377 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:42,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 04:59:42,377 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:42,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:42,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1047350048, now seen corresponding path program 1 times [2022-07-21 04:59:42,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:42,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071782141] [2022-07-21 04:59:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:42,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:59:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:59:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 04:59:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 04:59:42,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:42,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071782141] [2022-07-21 04:59:42,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071782141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:42,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:59:42,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 04:59:42,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557130576] [2022-07-21 04:59:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:42,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 04:59:42,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:42,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 04:59:42,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 04:59:42,449 INFO L87 Difference]: Start difference. First operand 269 states and 330 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 04:59:42,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:42,555 INFO L93 Difference]: Finished difference Result 677 states and 839 transitions. [2022-07-21 04:59:42,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:59:42,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2022-07-21 04:59:42,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:42,558 INFO L225 Difference]: With dead ends: 677 [2022-07-21 04:59:42,558 INFO L226 Difference]: Without dead ends: 415 [2022-07-21 04:59:42,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 04:59:42,560 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 93 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:42,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 130 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 04:59:42,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-07-21 04:59:42,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2022-07-21 04:59:42,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 324 states have (on average 1.2253086419753085) internal successors, (397), 345 states have internal predecessors, (397), 48 states have call successors, (48), 46 states have call predecessors, (48), 42 states have return successors, (57), 44 states have call predecessors, (57), 48 states have call successors, (57) [2022-07-21 04:59:42,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 502 transitions. [2022-07-21 04:59:42,584 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 502 transitions. Word has length 50 [2022-07-21 04:59:42,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:42,585 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 502 transitions. [2022-07-21 04:59:42,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 04:59:42,585 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 502 transitions. [2022-07-21 04:59:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-21 04:59:42,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:42,587 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:42,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 04:59:42,587 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1196971654, now seen corresponding path program 1 times [2022-07-21 04:59:42,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:42,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4438921] [2022-07-21 04:59:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:42,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 04:59:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:59:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 04:59:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:59:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 04:59:42,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:59:42,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4438921] [2022-07-21 04:59:42,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4438921] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:59:42,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119728290] [2022-07-21 04:59:42,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:42,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:59:42,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:59:42,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:59:42,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 04:59:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:59:42,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 04:59:42,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:59:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 04:59:42,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:59:42,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119728290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:59:42,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:59:42,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2022-07-21 04:59:42,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230484685] [2022-07-21 04:59:42,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:59:42,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:59:42,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:59:42,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:59:42,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:59:42,975 INFO L87 Difference]: Start difference. First operand 415 states and 502 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-21 04:59:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:59:43,074 INFO L93 Difference]: Finished difference Result 831 states and 1009 transitions. [2022-07-21 04:59:43,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 04:59:43,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2022-07-21 04:59:43,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:59:43,078 INFO L225 Difference]: With dead ends: 831 [2022-07-21 04:59:43,078 INFO L226 Difference]: Without dead ends: 423 [2022-07-21 04:59:43,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-07-21 04:59:43,080 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 77 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:59:43,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 733 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:59:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-21 04:59:43,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 413. [2022-07-21 04:59:43,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 322 states have (on average 1.2080745341614907) internal successors, (389), 342 states have internal predecessors, (389), 48 states have call successors, (48), 46 states have call predecessors, (48), 42 states have return successors, (51), 44 states have call predecessors, (51), 48 states have call successors, (51) [2022-07-21 04:59:43,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 488 transitions. [2022-07-21 04:59:43,103 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 488 transitions. Word has length 54 [2022-07-21 04:59:43,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:59:43,104 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 488 transitions. [2022-07-21 04:59:43,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-21 04:59:43,104 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 488 transitions. [2022-07-21 04:59:43,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-21 04:59:43,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:59:43,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:43,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 04:59:43,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-21 04:59:43,319 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:59:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:59:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash -892169705, now seen corresponding path program 1 times [2022-07-21 04:59:43,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:59:43,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150031146] [2022-07-21 04:59:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:59:43,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:59:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 04:59:43,351 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 04:59:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 04:59:43,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 04:59:43,405 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 04:59:43,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 04:59:43,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 04:59:43,411 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:59:43,415 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 04:59:43,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:59:43 BoogieIcfgContainer [2022-07-21 04:59:43,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 04:59:43,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 04:59:43,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 04:59:43,501 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 04:59:43,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:59:39" (3/4) ... [2022-07-21 04:59:43,508 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 04:59:43,591 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 04:59:43,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 04:59:43,592 INFO L158 Benchmark]: Toolchain (without parser) took 4721.79ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 42.1MB in the beginning and 63.9MB in the end (delta: -21.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-07-21 04:59:43,592 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 62.9MB. Free memory was 43.0MB in the beginning and 43.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 04:59:43,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.16ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 38.1MB in the end (delta: 3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 04:59:43,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.42ms. Allocated memory is still 62.9MB. Free memory was 38.1MB in the beginning and 35.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 04:59:43,593 INFO L158 Benchmark]: Boogie Preprocessor took 39.50ms. Allocated memory is still 62.9MB. Free memory was 35.6MB in the beginning and 34.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 04:59:43,593 INFO L158 Benchmark]: RCFGBuilder took 467.11ms. Allocated memory is still 62.9MB. Free memory was 34.0MB in the beginning and 37.0MB in the end (delta: -3.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2022-07-21 04:59:43,594 INFO L158 Benchmark]: TraceAbstraction took 3570.68ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 36.4MB in the beginning and 70.2MB in the end (delta: -33.8MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2022-07-21 04:59:43,594 INFO L158 Benchmark]: Witness Printer took 90.19ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 63.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-21 04:59:43,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 62.9MB. Free memory was 43.0MB in the beginning and 43.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.16ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 38.1MB in the end (delta: 3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.42ms. Allocated memory is still 62.9MB. Free memory was 38.1MB in the beginning and 35.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.50ms. Allocated memory is still 62.9MB. Free memory was 35.6MB in the beginning and 34.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.11ms. Allocated memory is still 62.9MB. Free memory was 34.0MB in the beginning and 37.0MB in the end (delta: -3.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3570.68ms. Allocated memory was 62.9MB in the beginning and 94.4MB in the end (delta: 31.5MB). Free memory was 36.4MB in the beginning and 70.2MB in the end (delta: -33.8MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 90.19ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 63.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L703] int waterLevel = 1; [L704] int methaneLevelCritical = 0; [L861] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L935] int tmp ; [L939] FCALL select_helpers() [L940] FCALL select_features() [L941] CALL, EXPR valid_product() [L852] int retValue_acc ; [L855] retValue_acc = 1 [L856] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L941] RET, EXPR valid_product() [L941] tmp = valid_product() [L943] COND TRUE \read(tmp) [L945] FCALL setup() [L946] CALL runTest() [L928] CALL test() [L432] int splverifierCounter ; [L433] int tmp ; [L434] int tmp___0 ; [L435] int tmp___1 ; [L436] int tmp___2 ; [L439] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L441] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L443] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L449] tmp = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L453] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L721] COND TRUE waterLevel < 2 [L722] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L453] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L473] RET startSystem() [L488] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L516] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L548] COND TRUE ! pumpRunning [L550] CALL, EXPR isHighWaterLevel() [L660] int retValue_acc ; [L661] int tmp ; [L662] int tmp___0 ; [L666] CALL, EXPR isHighWaterSensorDry() [L783] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L786] COND FALSE !(waterLevel < 2) [L790] retValue_acc = 0 [L791] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L666] RET, EXPR isHighWaterSensorDry() [L666] tmp = isHighWaterSensorDry() [L668] COND FALSE !(\read(tmp)) [L671] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L673] retValue_acc = tmp___0 [L674] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L550] RET, EXPR isHighWaterLevel() [L550] tmp = isHighWaterLevel() [L552] COND TRUE \read(tmp) [L554] CALL activatePump() [L579] int tmp ; [L583] CALL, EXPR isMethaneAlarm() [L604] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L608] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L608] retValue_acc = isMethaneLevelCritical() [L610] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L583] RET, EXPR isMethaneAlarm() [L583] tmp = isMethaneAlarm() [L585] COND FALSE !(\read(tmp)) [L589] CALL activatePump__wrappee__highWaterSensor() [L573] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L589] RET activatePump__wrappee__highWaterSensor() [L554] RET activatePump() [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L803] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L803] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L531] RET __utac_acc__Specification1_spec__1() [L488] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L441] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L443] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L449] tmp = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L463] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L733] COND FALSE !(\read(methaneLevelCritical)) [L736] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L463] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L473] RET startSystem() [L488] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] COND TRUE \read(pumpRunning) [L518] CALL lowerWaterLevel() [L709] COND TRUE waterLevel > 0 [L710] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L518] RET lowerWaterLevel() [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L548] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L563] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L803] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L803] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L803] tmp = isMethaneLevelCritical() [L805] COND TRUE \read(tmp) [L807] CALL, EXPR isPumpRunning() [L615] int retValue_acc ; [L618] retValue_acc = pumpRunning [L619] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L807] RET, EXPR isPumpRunning() [L807] tmp___0 = isPumpRunning() [L809] COND TRUE \read(tmp___0) [L811] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 825 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 797 mSDsluCounter, 2551 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1587 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 921 IncrementalHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 964 mSDtfsCounter, 921 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=9, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 118 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 538 NumberOfCodeBlocks, 538 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 444 ConstructedInterpolants, 0 QuantifiedInterpolants, 769 SizeOfPredicates, 4 NumberOfNonLiveVariables, 368 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 16/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-21 04:59:43,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE