./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/loops-crafted-1/Mono1_1-2.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 87992b509300f030a5da432e9377be19bc7547f7933c7234d13c36c34b6235c7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 06:34:37,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 06:34:37,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 06:34:37,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 06:34:37,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 06:34:37,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 06:34:37,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 06:34:37,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 06:34:37,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 06:34:37,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 06:34:37,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 06:34:37,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 06:34:37,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 06:34:37,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 06:34:37,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 06:34:37,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 06:34:37,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 06:34:37,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 06:34:37,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 06:34:37,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 06:34:37,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 06:34:37,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 06:34:37,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 06:34:37,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 06:34:37,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 06:34:37,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 06:34:37,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 06:34:37,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 06:34:37,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 06:34:37,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 06:34:37,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 06:34:37,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 06:34:37,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 06:34:37,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 06:34:37,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 06:34:37,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 06:34:37,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 06:34:37,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 06:34:37,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 06:34:37,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 06:34:37,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 06:34:37,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 06:34:37,610 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 06:34:37,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 06:34:37,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 06:34:37,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 06:34:37,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 06:34:37,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 06:34:37,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 06:34:37,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 06:34:37,627 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 06:34:37,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 06:34:37,627 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 06:34:37,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 06:34:37,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 06:34:37,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 06:34:37,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 06:34:37,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 06:34:37,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 06:34:37,629 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 06:34:37,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 06:34:37,629 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 06:34:37,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 06:34:37,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 06:34:37,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 06:34:37,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 06:34:37,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:34:37,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 06:34:37,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 06:34:37,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 06:34:37,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 06:34:37,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 06:34:37,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 06:34:37,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 06:34:37,631 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 06:34:37,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 06:34:37,636 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 06:34:37,636 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87992b509300f030a5da432e9377be19bc7547f7933c7234d13c36c34b6235c7 [2023-02-17 06:34:37,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 06:34:37,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 06:34:37,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 06:34:37,892 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 06:34:37,892 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 06:34:37,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c [2023-02-17 06:34:39,094 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 06:34:39,250 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 06:34:39,251 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c [2023-02-17 06:34:39,256 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3742539ef/6c0c0b7e735543ffab153d9728431e09/FLAG26aafc2d0 [2023-02-17 06:34:39,272 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3742539ef/6c0c0b7e735543ffab153d9728431e09 [2023-02-17 06:34:39,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 06:34:39,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 06:34:39,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 06:34:39,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 06:34:39,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 06:34:39,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68354187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39, skipping insertion in model container [2023-02-17 06:34:39,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 06:34:39,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 06:34:39,400 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c[313,326] [2023-02-17 06:34:39,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:34:39,421 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 06:34:39,430 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/Mono1_1-2.c[313,326] [2023-02-17 06:34:39,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:34:39,441 INFO L208 MainTranslator]: Completed translation [2023-02-17 06:34:39,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39 WrapperNode [2023-02-17 06:34:39,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 06:34:39,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 06:34:39,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 06:34:39,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 06:34:39,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,464 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-02-17 06:34:39,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 06:34:39,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 06:34:39,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 06:34:39,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 06:34:39,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 06:34:39,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 06:34:39,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 06:34:39,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 06:34:39,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (1/1) ... [2023-02-17 06:34:39,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:34:39,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:34:39,527 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) [2023-02-17 06:34:39,530 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 [2023-02-17 06:34:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 06:34:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 06:34:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 06:34:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 06:34:39,608 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 06:34:39,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 06:34:39,705 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 06:34:39,709 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 06:34:39,710 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 06:34:39,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:34:39 BoogieIcfgContainer [2023-02-17 06:34:39,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 06:34:39,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 06:34:39,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 06:34:39,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 06:34:39,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 06:34:39" (1/3) ... [2023-02-17 06:34:39,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337d2c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:34:39, skipping insertion in model container [2023-02-17 06:34:39,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:34:39" (2/3) ... [2023-02-17 06:34:39,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337d2c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:34:39, skipping insertion in model container [2023-02-17 06:34:39,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:34:39" (3/3) ... [2023-02-17 06:34:39,717 INFO L112 eAbstractionObserver]: Analyzing ICFG Mono1_1-2.c [2023-02-17 06:34:39,728 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 06:34:39,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 06:34:39,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 06:34:39,762 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16613a40, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 06:34:39,762 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 06:34:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 06:34:39,768 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:34:39,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 06:34:39,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:34:39,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:34:39,773 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2023-02-17 06:34:39,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:34:39,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440363344] [2023-02-17 06:34:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:39,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:34:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:39,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:34:39,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440363344] [2023-02-17 06:34:39,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440363344] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:34:39,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:34:39,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 06:34:39,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287948331] [2023-02-17 06:34:39,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:34:39,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 06:34:39,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:34:39,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 06:34:39,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 06:34:39,917 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:39,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:34:39,926 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-02-17 06:34:39,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 06:34:39,928 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 06:34:39,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:34:39,933 INFO L225 Difference]: With dead ends: 20 [2023-02-17 06:34:39,933 INFO L226 Difference]: Without dead ends: 8 [2023-02-17 06:34:39,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 06:34:39,943 INFO L413 NwaCegarLoop]: 13 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, 13 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 [2023-02-17 06:34:39,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:34:39,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-02-17 06:34:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-17 06:34:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2023-02-17 06:34:39,970 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2023-02-17 06:34:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:34:39,970 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-02-17 06:34:39,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-02-17 06:34:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 06:34:39,971 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:34:39,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 06:34:39,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 06:34:39,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:34:39,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:34:39,985 INFO L85 PathProgramCache]: Analyzing trace with hash 889639793, now seen corresponding path program 1 times [2023-02-17 06:34:39,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:34:39,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271707571] [2023-02-17 06:34:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:39,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:34:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:40,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:34:40,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271707571] [2023-02-17 06:34:40,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271707571] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:34:40,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:34:40,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 06:34:40,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071624258] [2023-02-17 06:34:40,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:34:40,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 06:34:40,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:34:40,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 06:34:40,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 06:34:40,132 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:40,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:34:40,153 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2023-02-17 06:34:40,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 06:34:40,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 06:34:40,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:34:40,155 INFO L225 Difference]: With dead ends: 16 [2023-02-17 06:34:40,155 INFO L226 Difference]: Without dead ends: 10 [2023-02-17 06:34:40,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 06:34:40,157 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:34:40,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:34:40,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-17 06:34:40,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-17 06:34:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-02-17 06:34:40,165 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2023-02-17 06:34:40,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:34:40,165 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-02-17 06:34:40,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:40,166 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-02-17 06:34:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-17 06:34:40,166 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:34:40,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:34:40,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 06:34:40,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:34:40,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:34:40,168 INFO L85 PathProgramCache]: Analyzing trace with hash 295691924, now seen corresponding path program 1 times [2023-02-17 06:34:40,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:34:40,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320422089] [2023-02-17 06:34:40,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:40,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:34:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:40,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:34:40,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320422089] [2023-02-17 06:34:40,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320422089] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:34:40,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497342779] [2023-02-17 06:34:40,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:40,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:34:40,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:34:40,242 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) [2023-02-17 06:34:40,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 06:34:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:40,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 06:34:40,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:34:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:40,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:34:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:40,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497342779] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:34:40,402 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:34:40,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-17 06:34:40,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296906857] [2023-02-17 06:34:40,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:34:40,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 06:34:40,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:34:40,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 06:34:40,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-02-17 06:34:40,404 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:40,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:34:40,443 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2023-02-17 06:34:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 06:34:40,445 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-17 06:34:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:34:40,445 INFO L225 Difference]: With dead ends: 20 [2023-02-17 06:34:40,445 INFO L226 Difference]: Without dead ends: 14 [2023-02-17 06:34:40,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-02-17 06:34:40,447 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:34:40,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 15 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:34:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-17 06:34:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-02-17 06:34:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-02-17 06:34:40,449 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2023-02-17 06:34:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:34:40,450 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-02-17 06:34:40,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-02-17 06:34:40,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 06:34:40,450 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:34:40,450 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:34:40,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 06:34:40,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:34:40,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:34:40,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:34:40,658 INFO L85 PathProgramCache]: Analyzing trace with hash 572634524, now seen corresponding path program 1 times [2023-02-17 06:34:40,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:34:40,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626518838] [2023-02-17 06:34:40,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:40,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:34:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:40,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:34:40,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626518838] [2023-02-17 06:34:40,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626518838] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:34:40,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178833031] [2023-02-17 06:34:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:40,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:34:40,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:34:40,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:34:40,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 06:34:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:40,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 06:34:40,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:34:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:40,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:34:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:40,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178833031] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:34:40,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:34:40,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6] total 10 [2023-02-17 06:34:40,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471420622] [2023-02-17 06:34:40,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:34:40,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-17 06:34:40,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:34:40,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-17 06:34:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-02-17 06:34:40,925 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:41,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:34:41,032 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2023-02-17 06:34:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-17 06:34:41,033 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-17 06:34:41,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:34:41,035 INFO L225 Difference]: With dead ends: 28 [2023-02-17 06:34:41,035 INFO L226 Difference]: Without dead ends: 21 [2023-02-17 06:34:41,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=89, Unknown=0, NotChecked=0, Total=156 [2023-02-17 06:34:41,038 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 06:34:41,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 06:34:41,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-17 06:34:41,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-17 06:34:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:41,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-02-17 06:34:41,044 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2023-02-17 06:34:41,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:34:41,044 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-02-17 06:34:41,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-02-17 06:34:41,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 06:34:41,045 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:34:41,045 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:34:41,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 06:34:41,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-02-17 06:34:41,246 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:34:41,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:34:41,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1634475176, now seen corresponding path program 2 times [2023-02-17 06:34:41,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:34:41,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822430875] [2023-02-17 06:34:41,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:41,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:34:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:41,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:34:41,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822430875] [2023-02-17 06:34:41,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822430875] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:34:41,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476084395] [2023-02-17 06:34:41,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 06:34:41,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:34:41,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:34:41,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:34:41,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 06:34:41,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 06:34:41,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 06:34:41,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-17 06:34:41,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:34:41,539 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:41,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:34:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:41,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476084395] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:34:41,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:34:41,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 18 [2023-02-17 06:34:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701995637] [2023-02-17 06:34:41,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:34:41,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-17 06:34:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:34:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-17 06:34:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2023-02-17 06:34:41,694 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:34:42,177 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2023-02-17 06:34:42,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-17 06:34:42,183 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-17 06:34:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:34:42,184 INFO L225 Difference]: With dead ends: 44 [2023-02-17 06:34:42,184 INFO L226 Difference]: Without dead ends: 37 [2023-02-17 06:34:42,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=369, Unknown=0, NotChecked=0, Total=600 [2023-02-17 06:34:42,185 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 21 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 06:34:42,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 19 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 06:34:42,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-17 06:34:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-02-17 06:34:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:42,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2023-02-17 06:34:42,189 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 20 [2023-02-17 06:34:42,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:34:42,190 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2023-02-17 06:34:42,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:42,190 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2023-02-17 06:34:42,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-17 06:34:42,190 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:34:42,190 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:34:42,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-17 06:34:42,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:34:42,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:34:42,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:34:42,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1104705856, now seen corresponding path program 3 times [2023-02-17 06:34:42,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:34:42,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974817537] [2023-02-17 06:34:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:34:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 15 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:42,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:34:42,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974817537] [2023-02-17 06:34:42,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974817537] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:34:42,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825948423] [2023-02-17 06:34:42,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 06:34:42,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:34:42,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:34:42,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:34:42,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 06:34:42,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-17 06:34:42,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 06:34:42,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 06:34:42,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:34:42,793 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-02-17 06:34:42,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:34:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-02-17 06:34:42,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825948423] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:34:42,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:34:42,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 4, 6] total 23 [2023-02-17 06:34:42,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395791496] [2023-02-17 06:34:42,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:34:42,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-17 06:34:42,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:34:42,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-17 06:34:42,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-02-17 06:34:42,886 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:34:43,154 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2023-02-17 06:34:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-17 06:34:43,155 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-02-17 06:34:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:34:43,155 INFO L225 Difference]: With dead ends: 56 [2023-02-17 06:34:43,155 INFO L226 Difference]: Without dead ends: 47 [2023-02-17 06:34:43,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-02-17 06:34:43,156 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 06:34:43,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 06:34:43,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-17 06:34:43,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2023-02-17 06:34:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:43,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2023-02-17 06:34:43,169 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 36 [2023-02-17 06:34:43,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:34:43,169 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2023-02-17 06:34:43,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 23 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:34:43,169 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2023-02-17 06:34:43,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-17 06:34:43,170 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:34:43,170 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 4, 1, 1, 1, 1, 1, 1] [2023-02-17 06:34:43,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 06:34:43,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:34:43,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:34:43,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:34:43,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1664138286, now seen corresponding path program 4 times [2023-02-17 06:34:43,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:34:43,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125226506] [2023-02-17 06:34:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:34:43,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:34:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:34:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 112 proven. 240 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 06:34:43,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:34:43,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125226506] [2023-02-17 06:34:43,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125226506] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:34:43,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598178962] [2023-02-17 06:34:43,619 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 06:34:43,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:34:43,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:34:43,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:34:43,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 06:34:43,655 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 06:34:43,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 06:34:43,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-17 06:34:43,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:34:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:43,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:34:44,556 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:34:44,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598178962] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:34:44,556 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:34:44,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22, 22] total 43 [2023-02-17 06:34:44,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468151452] [2023-02-17 06:34:44,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:34:44,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-02-17 06:34:44,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:34:44,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-02-17 06:34:44,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=519, Invalid=1287, Unknown=0, NotChecked=0, Total=1806 [2023-02-17 06:34:44,559 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 43 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:35:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:35:06,573 INFO L93 Difference]: Finished difference Result 76 states and 101 transitions. [2023-02-17 06:35:06,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-17 06:35:06,573 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 43 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-02-17 06:35:06,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:35:06,575 INFO L225 Difference]: With dead ends: 76 [2023-02-17 06:35:06,575 INFO L226 Difference]: Without dead ends: 63 [2023-02-17 06:35:06,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 48 SyntacticMatches, 16 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=940, Invalid=1922, Unknown=0, NotChecked=0, Total=2862 [2023-02-17 06:35:06,576 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-02-17 06:35:06,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 66 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-02-17 06:35:06,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-17 06:35:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-17 06:35:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 62 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:35:06,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2023-02-17 06:35:06,587 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 44 [2023-02-17 06:35:06,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:35:06,587 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2023-02-17 06:35:06,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 43 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:35:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2023-02-17 06:35:06,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-02-17 06:35:06,591 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:35:06,591 INFO L195 NwaCegarLoop]: trace histogram [28, 16, 12, 1, 1, 1, 1, 1, 1] [2023-02-17 06:35:06,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 06:35:06,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:35:06,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:35:06,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:35:06,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1269144285, now seen corresponding path program 5 times [2023-02-17 06:35:06,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:35:06,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063627857] [2023-02-17 06:35:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:35:06,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:35:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:35:07,163 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-02-17 06:35:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:35:07,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063627857] [2023-02-17 06:35:07,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063627857] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:35:07,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531808227] [2023-02-17 06:35:07,164 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 06:35:07,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:35:07,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:35:07,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:35:07,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 06:35:07,612 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2023-02-17 06:35:07,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 06:35:07,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-17 06:35:07,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:35:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 391 proven. 272 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-02-17 06:35:07,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:35:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 380 proven. 304 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-02-17 06:35:11,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531808227] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:35:11,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:35:11,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 21] total 39 [2023-02-17 06:35:11,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983706543] [2023-02-17 06:35:11,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:35:11,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-02-17 06:35:11,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:35:11,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-02-17 06:35:11,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=1045, Unknown=0, NotChecked=0, Total=1482 [2023-02-17 06:35:11,103 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 39 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:35:16,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:35:31,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:35:33,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:35:33,822 INFO L93 Difference]: Finished difference Result 128 states and 170 transitions. [2023-02-17 06:35:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-02-17 06:35:33,824 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 39 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-02-17 06:35:33,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:35:33,825 INFO L225 Difference]: With dead ends: 128 [2023-02-17 06:35:33,825 INFO L226 Difference]: Without dead ends: 99 [2023-02-17 06:35:33,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 85 SyntacticMatches, 20 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=1138, Invalid=2054, Unknown=0, NotChecked=0, Total=3192 [2023-02-17 06:35:33,826 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 70 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:35:33,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 25 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-02-17 06:35:33,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-17 06:35:33,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-02-17 06:35:33,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1326530612244898) internal successors, (111), 98 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:35:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2023-02-17 06:35:33,849 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 62 [2023-02-17 06:35:33,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:35:33,849 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2023-02-17 06:35:33,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.1025641025641026) internal successors, (82), 39 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:35:33,859 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2023-02-17 06:35:33,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-02-17 06:35:33,860 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:35:33,861 INFO L195 NwaCegarLoop]: trace histogram [46, 34, 12, 1, 1, 1, 1, 1, 1] [2023-02-17 06:35:33,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-17 06:35:34,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:35:34,066 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:35:34,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:35:34,066 INFO L85 PathProgramCache]: Analyzing trace with hash -905639277, now seen corresponding path program 6 times [2023-02-17 06:35:34,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:35:34,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930893314] [2023-02-17 06:35:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:35:34,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:35:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:35:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 805 proven. 1190 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-02-17 06:35:34,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:35:34,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930893314] [2023-02-17 06:35:34,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930893314] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:35:34,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464589793] [2023-02-17 06:35:34,929 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 06:35:34,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:35:34,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:35:34,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:35:34,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 06:35:48,069 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 47 check-sat command(s) [2023-02-17 06:35:48,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 06:35:48,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 94 conjunts are in the unsatisfiable core [2023-02-17 06:35:48,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:35:48,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 46 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:35:48,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:35:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 46 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:35:53,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464589793] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:35:53,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:35:53,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 48, 49] total 96 [2023-02-17 06:35:53,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420921033] [2023-02-17 06:35:53,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:35:53,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-17 06:35:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:35:53,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-17 06:35:53,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2434, Invalid=6686, Unknown=0, NotChecked=0, Total=9120 [2023-02-17 06:35:53,094 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand has 96 states, 96 states have (on average 2.0416666666666665) internal successors, (196), 96 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:35:56,180 WARN L837 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 50) 4294967296))) (or (not (< .cse0 100000000)) (< .cse0 10000000))) (let ((.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 41) 4294967296))) (or (< .cse1 10000000) (not (< .cse1 100000000)))) (let ((.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296))) (or (not (< .cse2 100000000)) (< .cse2 10000000))) (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 49) 4294967296))) (or (< .cse3 10000000) (not (< .cse3 100000000)))) (let ((.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 55) 4294967296))) (or (< .cse4 10000000) (not (< .cse4 100000000)))) (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296))) (or (not (< .cse5 100000000)) (< .cse5 10000000))) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296))) (or (not (< .cse6 100000000)) (< .cse6 10000000))) (let ((.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296))) (or (not (< .cse7 100000000)) (< .cse7 10000000))) (let ((.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296))) (or (< .cse8 10000000) (not (< .cse8 100000000)))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 42) 4294967296))) (or (not (< .cse9 100000000)) (< .cse9 10000000))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 35) 4294967296))) (or (< .cse10 10000000) (not (< .cse10 100000000)))) (let ((.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 46) 4294967296))) (or (not (< .cse11 100000000)) (< .cse11 10000000))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 23) 4294967296))) (or (not (< .cse12 100000000)) (< .cse12 10000000))) (let ((.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 56) 4294967296))) (or (< .cse13 10000000) (not (< .cse13 100000000)))) (let ((.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296))) (or (< .cse14 10000000) (not (< .cse14 100000000)))) (let ((.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 54) 4294967296))) (or (not (< .cse15 100000000)) (< .cse15 10000000))) (let ((.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 53) 4294967296))) (or (not (< .cse16 100000000)) (< .cse16 10000000))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296))) (or (< .cse17 10000000) (not (< .cse17 100000000)))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 47) 4294967296))) (or (not (< .cse18 100000000)) (< .cse18 10000000))) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296))) (or (not (< .cse19 100000000)) (< .cse19 10000000))) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296))) (or (not (< .cse20 100000000)) (< .cse20 10000000))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 44) 4294967296))) (or (not (< .cse21 100000000)) (< .cse21 10000000))) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 10000000) (let ((.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296))) (or (< .cse22 10000000) (not (< .cse22 100000000)))) (let ((.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 45) 4294967296))) (or (< .cse23 10000000) (not (< .cse23 100000000)))) (let ((.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse24 10000000) (not (< .cse24 100000000)))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296))) (or (not (< .cse25 100000000)) (< .cse25 10000000))) (let ((.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296))) (or (< .cse26 10000000) (not (< .cse26 100000000)))) (let ((.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296))) (or (< .cse27 10000000) (not (< .cse27 100000000)))) (let ((.cse28 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (or (not (< .cse28 100000000)) (< .cse28 10000000))) (let ((.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 48) 4294967296))) (or (not (< .cse29 100000000)) (< .cse29 10000000))) (let ((.cse30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296))) (or (not (< .cse30 100000000)) (< .cse30 10000000))) (let ((.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296))) (or (not (< .cse31 100000000)) (< .cse31 10000000))) (let ((.cse32 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 52) 4294967296))) (or (< .cse32 10000000) (not (< .cse32 100000000)))) (let ((.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296))) (or (< .cse33 10000000) (not (< .cse33 100000000)))) (let ((.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296))) (or (not (< .cse34 100000000)) (< .cse34 10000000))) (let ((.cse35 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296))) (or (< .cse35 10000000) (not (< .cse35 100000000)))) (let ((.cse36 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296))) (or (< .cse36 10000000) (not (< .cse36 100000000)))) (let ((.cse37 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (not (< .cse37 100000000)) (< .cse37 10000000))) (let ((.cse38 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 40) 4294967296))) (or (< .cse38 10000000) (not (< .cse38 100000000)))) (let ((.cse39 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 43) 4294967296))) (or (< .cse39 10000000) (not (< .cse39 100000000)))) (let ((.cse40 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296))) (or (not (< .cse40 100000000)) (< .cse40 10000000))) (let ((.cse41 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (or (< .cse41 10000000) (not (< .cse41 100000000)))) (let ((.cse42 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 51) 4294967296))) (or (not (< .cse42 100000000)) (< .cse42 10000000))) (let ((.cse43 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296))) (or (not (< .cse43 100000000)) (< .cse43 10000000))) (let ((.cse44 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296))) (or (< .cse44 10000000) (not (< .cse44 100000000))))) is different from false [2023-02-17 06:36:56,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:36:58,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:00,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:02,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:04,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:06,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:08,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:10,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:12,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:14,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:16,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:18,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:19,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:21,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:23,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:26,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:28,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:30,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:31,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:32,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:34,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:37,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:39,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:42,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:45,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:47,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:49,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:51,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:53,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:55,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:58,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:37:59,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:39:09,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:39:11,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:39:12,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:39:16,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:39:18,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:39:20,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 06:39:21,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []