./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/eca-rers2012/Problem14_label00.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 5bb4a2318b3c771184e17eae719f5b8d6deeb3f5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 22:06:17,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 22:06:17,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 22:06:17,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 22:06:17,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 22:06:17,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 22:06:17,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 22:06:17,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 22:06:17,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 22:06:17,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 22:06:17,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 22:06:17,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 22:06:17,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 22:06:17,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 22:06:17,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 22:06:17,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 22:06:17,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 22:06:17,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 22:06:17,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 22:06:17,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 22:06:17,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 22:06:17,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 22:06:17,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 22:06:17,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 22:06:17,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 22:06:17,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 22:06:17,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 22:06:17,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 22:06:17,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 22:06:17,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 22:06:17,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 22:06:17,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 22:06:17,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 22:06:17,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 22:06:17,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 22:06:17,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 22:06:17,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 22:06:17,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 22:06:17,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 22:06:17,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 22:06:17,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 22:06:17,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 22:06:17,569 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 22:06:17,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 22:06:17,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 22:06:17,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 22:06:17,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 22:06:17,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 22:06:17,574 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 22:06:17,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 22:06:17,574 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 22:06:17,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 22:06:17,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 22:06:17,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 22:06:17,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 22:06:17,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 22:06:17,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 22:06:17,576 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 22:06:17,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 22:06:17,577 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 22:06:17,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 22:06:17,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 22:06:17,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 22:06:17,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 22:06:17,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 22:06:17,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 22:06:17,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 22:06:17,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 22:06:17,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 22:06:17,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 22:06:17,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 22:06:17,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 22:06:17,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb4a2318b3c771184e17eae719f5b8d6deeb3f5 [2021-08-25 22:06:17,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 22:06:17,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 22:06:17,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 22:06:17,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 22:06:17,874 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 22:06:17,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label00.c [2021-08-25 22:06:17,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc4d2ec8/642473fe6cdb4423a98ae80c169f76c5/FLAG59d9fd33c [2021-08-25 22:06:18,497 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 22:06:18,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label00.c [2021-08-25 22:06:18,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc4d2ec8/642473fe6cdb4423a98ae80c169f76c5/FLAG59d9fd33c [2021-08-25 22:06:18,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc4d2ec8/642473fe6cdb4423a98ae80c169f76c5 [2021-08-25 22:06:18,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 22:06:18,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 22:06:18,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 22:06:18,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 22:06:18,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 22:06:18,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:06:18" (1/1) ... [2021-08-25 22:06:18,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0ff3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:18, skipping insertion in model container [2021-08-25 22:06:18,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:06:18" (1/1) ... [2021-08-25 22:06:18,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 22:06:19,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 22:06:19,161 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label00.c[5469,5482] [2021-08-25 22:06:19,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 22:06:19,338 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 22:06:19,357 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label00.c[5469,5482] [2021-08-25 22:06:19,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 22:06:19,445 INFO L208 MainTranslator]: Completed translation [2021-08-25 22:06:19,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19 WrapperNode [2021-08-25 22:06:19,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 22:06:19,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 22:06:19,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 22:06:19,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 22:06:19,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 22:06:19,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 22:06:19,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 22:06:19,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 22:06:19,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 22:06:19,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 22:06:19,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 22:06:19,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 22:06:19,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (1/1) ... [2021-08-25 22:06:19,630 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 22:06:19,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:06:19,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-25 22:06:19,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-25 22:06:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 22:06:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 22:06:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 22:06:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 22:06:21,104 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 22:06:21,105 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 22:06:21,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:06:21 BoogieIcfgContainer [2021-08-25 22:06:21,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 22:06:21,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 22:06:21,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 22:06:21,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 22:06:21,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 10:06:18" (1/3) ... [2021-08-25 22:06:21,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a419d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:06:21, skipping insertion in model container [2021-08-25 22:06:21,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:06:19" (2/3) ... [2021-08-25 22:06:21,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a419d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:06:21, skipping insertion in model container [2021-08-25 22:06:21,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:06:21" (3/3) ... [2021-08-25 22:06:21,116 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label00.c [2021-08-25 22:06:21,121 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 22:06:21,121 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 22:06:21,165 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 22:06:21,171 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 22:06:21,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 22:06:21,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:21,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-25 22:06:21,206 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:21,207 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:21,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:21,212 INFO L82 PathProgramCache]: Analyzing trace with hash -92557335, now seen corresponding path program 1 times [2021-08-25 22:06:21,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:21,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117042000] [2021-08-25 22:06:21,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:21,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:06:21,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:21,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117042000] [2021-08-25 22:06:21,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117042000] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:21,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:21,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 22:06:21,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964109518] [2021-08-25 22:06:21,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:21,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:21,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:21,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:21,488 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:22,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:22,501 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-08-25 22:06:22,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:22,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2021-08-25 22:06:22,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:22,522 INFO L225 Difference]: With dead ends: 669 [2021-08-25 22:06:22,522 INFO L226 Difference]: Without dead ends: 360 [2021-08-25 22:06:22,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:22,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-08-25 22:06:22,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-08-25 22:06:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:22,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2021-08-25 22:06:22,596 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 53 [2021-08-25 22:06:22,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:22,596 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2021-08-25 22:06:22,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:22,596 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2021-08-25 22:06:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-08-25 22:06:22,600 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:22,600 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:22,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 22:06:22,600 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:22,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:22,601 INFO L82 PathProgramCache]: Analyzing trace with hash 665233748, now seen corresponding path program 1 times [2021-08-25 22:06:22,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:22,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454204444] [2021-08-25 22:06:22,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:22,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:06:22,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:22,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454204444] [2021-08-25 22:06:22,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454204444] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:22,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:22,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 22:06:22,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847245540] [2021-08-25 22:06:22,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:22,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:22,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:22,761 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:23,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:23,527 INFO L93 Difference]: Finished difference Result 1076 states and 1760 transitions. [2021-08-25 22:06:23,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:23,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 118 [2021-08-25 22:06:23,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:23,530 INFO L225 Difference]: With dead ends: 1076 [2021-08-25 22:06:23,530 INFO L226 Difference]: Without dead ends: 718 [2021-08-25 22:06:23,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:23,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-08-25 22:06:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2021-08-25 22:06:23,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.4223776223776223) internal successors, (1017), 715 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:23,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions. [2021-08-25 22:06:23,549 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 118 [2021-08-25 22:06:23,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:23,549 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions. [2021-08-25 22:06:23,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:23,550 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions. [2021-08-25 22:06:23,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-25 22:06:23,552 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:23,552 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:23,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 22:06:23,552 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:23,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:23,553 INFO L82 PathProgramCache]: Analyzing trace with hash 802572153, now seen corresponding path program 1 times [2021-08-25 22:06:23,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:23,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263267925] [2021-08-25 22:06:23,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:23,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:23,617 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:06:23,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:23,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263267925] [2021-08-25 22:06:23,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263267925] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:23,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:23,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 22:06:23,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031274341] [2021-08-25 22:06:23,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:23,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:23,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:23,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:23,626 INFO L87 Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:24,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:24,384 INFO L93 Difference]: Finished difference Result 1608 states and 2324 transitions. [2021-08-25 22:06:24,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:24,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 119 [2021-08-25 22:06:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:24,390 INFO L225 Difference]: With dead ends: 1608 [2021-08-25 22:06:24,390 INFO L226 Difference]: Without dead ends: 894 [2021-08-25 22:06:24,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:24,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2021-08-25 22:06:24,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2021-08-25 22:06:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3314669652855544) internal successors, (1189), 893 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:24,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1189 transitions. [2021-08-25 22:06:24,410 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1189 transitions. Word has length 119 [2021-08-25 22:06:24,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:24,412 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1189 transitions. [2021-08-25 22:06:24,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:24,413 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1189 transitions. [2021-08-25 22:06:24,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-08-25 22:06:24,419 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:24,419 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:24,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 22:06:24,420 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:24,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:24,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1613197922, now seen corresponding path program 1 times [2021-08-25 22:06:24,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:24,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833106601] [2021-08-25 22:06:24,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:24,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:06:24,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:24,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833106601] [2021-08-25 22:06:24,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833106601] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:24,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:24,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:06:24,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349829487] [2021-08-25 22:06:24,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:06:24,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:24,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:06:24,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:06:24,538 INFO L87 Difference]: Start difference. First operand 894 states and 1189 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:25,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:25,566 INFO L93 Difference]: Finished difference Result 2144 states and 2782 transitions. [2021-08-25 22:06:25,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:06:25,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 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 122 [2021-08-25 22:06:25,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:25,574 INFO L225 Difference]: With dead ends: 2144 [2021-08-25 22:06:25,574 INFO L226 Difference]: Without dead ends: 1252 [2021-08-25 22:06:25,575 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2021-08-25 22:06:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2021-08-25 22:06:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.257005604483587) internal successors, (1570), 1249 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:25,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1570 transitions. [2021-08-25 22:06:25,617 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1570 transitions. Word has length 122 [2021-08-25 22:06:25,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:25,618 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1570 transitions. [2021-08-25 22:06:25,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:25,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1570 transitions. [2021-08-25 22:06:25,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-08-25 22:06:25,619 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:25,619 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:25,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 22:06:25,620 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:25,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:25,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1253085156, now seen corresponding path program 1 times [2021-08-25 22:06:25,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:25,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706174512] [2021-08-25 22:06:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:25,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:25,725 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:06:25,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:25,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706174512] [2021-08-25 22:06:25,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706174512] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:25,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:25,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:06:25,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403843991] [2021-08-25 22:06:25,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:06:25,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:25,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:06:25,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:06:25,727 INFO L87 Difference]: Start difference. First operand 1250 states and 1570 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:26,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:26,464 INFO L93 Difference]: Finished difference Result 2885 states and 3573 transitions. [2021-08-25 22:06:26,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:06:26,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 133 [2021-08-25 22:06:26,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:26,469 INFO L225 Difference]: With dead ends: 2885 [2021-08-25 22:06:26,469 INFO L226 Difference]: Without dead ends: 1608 [2021-08-25 22:06:26,471 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:06:26,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2021-08-25 22:06:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2021-08-25 22:06:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1314641744548286) internal successors, (1816), 1605 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1816 transitions. [2021-08-25 22:06:26,504 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1816 transitions. Word has length 133 [2021-08-25 22:06:26,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:26,505 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1816 transitions. [2021-08-25 22:06:26,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1816 transitions. [2021-08-25 22:06:26,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-08-25 22:06:26,507 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:26,507 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:26,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 22:06:26,508 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:26,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:26,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1446966609, now seen corresponding path program 1 times [2021-08-25 22:06:26,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:26,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757120223] [2021-08-25 22:06:26,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:26,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:06:26,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:26,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757120223] [2021-08-25 22:06:26,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757120223] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:26,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:26,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:06:26,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067978810] [2021-08-25 22:06:26,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:26,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:26,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:26,599 INFO L87 Difference]: Start difference. First operand 1606 states and 1816 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:27,247 INFO L93 Difference]: Finished difference Result 3922 states and 4494 transitions. [2021-08-25 22:06:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:27,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 227 [2021-08-25 22:06:27,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:27,256 INFO L225 Difference]: With dead ends: 3922 [2021-08-25 22:06:27,256 INFO L226 Difference]: Without dead ends: 2318 [2021-08-25 22:06:27,258 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:27,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-08-25 22:06:27,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2021-08-25 22:06:27,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.1130772550712127) internal successors, (2579), 2317 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:27,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2579 transitions. [2021-08-25 22:06:27,315 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2579 transitions. Word has length 227 [2021-08-25 22:06:27,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:27,316 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2579 transitions. [2021-08-25 22:06:27,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:27,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2579 transitions. [2021-08-25 22:06:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-08-25 22:06:27,321 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:27,321 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:27,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 22:06:27,321 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:27,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:27,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1245580553, now seen corresponding path program 1 times [2021-08-25 22:06:27,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:27,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269559091] [2021-08-25 22:06:27,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:27,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-08-25 22:06:27,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:27,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269559091] [2021-08-25 22:06:27,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269559091] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:27,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:27,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:06:27,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803874123] [2021-08-25 22:06:27,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:06:27,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:27,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:06:27,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:06:27,473 INFO L87 Difference]: Start difference. First operand 2318 states and 2579 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:28,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:28,132 INFO L93 Difference]: Finished difference Result 4692 states and 5238 transitions. [2021-08-25 22:06:28,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:06:28,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 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 344 [2021-08-25 22:06:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:28,140 INFO L225 Difference]: With dead ends: 4692 [2021-08-25 22:06:28,141 INFO L226 Difference]: Without dead ends: 2496 [2021-08-25 22:06:28,143 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:06:28,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-08-25 22:06:28,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2021-08-25 22:06:28,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0738023305999136) internal successors, (2488), 2317 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:28,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2488 transitions. [2021-08-25 22:06:28,181 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2488 transitions. Word has length 344 [2021-08-25 22:06:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:28,182 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2488 transitions. [2021-08-25 22:06:28,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:28,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2488 transitions. [2021-08-25 22:06:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-08-25 22:06:28,188 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:28,188 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:28,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 22:06:28,189 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:28,189 INFO L82 PathProgramCache]: Analyzing trace with hash -46056977, now seen corresponding path program 1 times [2021-08-25 22:06:28,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:28,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574719445] [2021-08-25 22:06:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:28,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-25 22:06:28,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:28,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574719445] [2021-08-25 22:06:28,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574719445] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:28,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:28,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:06:28,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242451914] [2021-08-25 22:06:28,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:28,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:28,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:28,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:28,367 INFO L87 Difference]: Start difference. First operand 2318 states and 2488 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:28,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:28,934 INFO L93 Difference]: Finished difference Result 4812 states and 5232 transitions. [2021-08-25 22:06:28,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:28,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 439 [2021-08-25 22:06:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:28,944 INFO L225 Difference]: With dead ends: 4812 [2021-08-25 22:06:28,944 INFO L226 Difference]: Without dead ends: 2674 [2021-08-25 22:06:28,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-08-25 22:06:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2021-08-25 22:06:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0733987844787283) internal successors, (2296), 2139 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:28,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2296 transitions. [2021-08-25 22:06:28,984 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2296 transitions. Word has length 439 [2021-08-25 22:06:28,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:28,985 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2296 transitions. [2021-08-25 22:06:28,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2296 transitions. [2021-08-25 22:06:28,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-08-25 22:06:28,991 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:28,991 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:28,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 22:06:28,992 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:28,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:28,992 INFO L82 PathProgramCache]: Analyzing trace with hash 697752886, now seen corresponding path program 1 times [2021-08-25 22:06:28,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:28,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668306610] [2021-08-25 22:06:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:28,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-25 22:06:29,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:29,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668306610] [2021-08-25 22:06:29,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668306610] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:29,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:29,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:06:29,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28944482] [2021-08-25 22:06:29,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:29,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:29,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:29,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:29,124 INFO L87 Difference]: Start difference. First operand 2140 states and 2296 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:29,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:29,729 INFO L93 Difference]: Finished difference Result 4812 states and 5234 transitions. [2021-08-25 22:06:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:29,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 446 [2021-08-25 22:06:29,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:29,741 INFO L225 Difference]: With dead ends: 4812 [2021-08-25 22:06:29,741 INFO L226 Difference]: Without dead ends: 2852 [2021-08-25 22:06:29,744 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-08-25 22:06:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2021-08-25 22:06:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0841683366733468) internal successors, (2705), 2495 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2705 transitions. [2021-08-25 22:06:29,808 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2705 transitions. Word has length 446 [2021-08-25 22:06:29,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:29,809 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2705 transitions. [2021-08-25 22:06:29,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2705 transitions. [2021-08-25 22:06:29,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-08-25 22:06:29,818 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:29,818 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:29,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 22:06:29,819 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:29,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:29,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1371485263, now seen corresponding path program 1 times [2021-08-25 22:06:29,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:29,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934059218] [2021-08-25 22:06:29,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:29,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 523 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-25 22:06:29,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:29,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934059218] [2021-08-25 22:06:29,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934059218] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:29,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:29,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:06:29,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020977375] [2021-08-25 22:06:29,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:29,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:29,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:29,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:29,983 INFO L87 Difference]: Start difference. First operand 2496 states and 2705 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:30,532 INFO L93 Difference]: Finished difference Result 5880 states and 6462 transitions. [2021-08-25 22:06:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:30,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 487 [2021-08-25 22:06:30,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:30,543 INFO L225 Difference]: With dead ends: 5880 [2021-08-25 22:06:30,544 INFO L226 Difference]: Without dead ends: 3564 [2021-08-25 22:06:30,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-08-25 22:06:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2021-08-25 22:06:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.079988773505473) internal successors, (3848), 3563 states have internal predecessors, (3848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3848 transitions. [2021-08-25 22:06:30,602 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3848 transitions. Word has length 487 [2021-08-25 22:06:30,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:30,603 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3848 transitions. [2021-08-25 22:06:30,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:30,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3848 transitions. [2021-08-25 22:06:30,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2021-08-25 22:06:30,607 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:30,608 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:30,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 22:06:30,608 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:30,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1291670435, now seen corresponding path program 1 times [2021-08-25 22:06:30,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:30,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098257490] [2021-08-25 22:06:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:30,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:30,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 690 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-08-25 22:06:30,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:30,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098257490] [2021-08-25 22:06:30,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098257490] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:30,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:06:30,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:06:30,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715557154] [2021-08-25 22:06:30,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:30,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:30,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:30,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:30,766 INFO L87 Difference]: Start difference. First operand 3564 states and 3848 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:31,296 INFO L93 Difference]: Finished difference Result 7126 states and 7710 transitions. [2021-08-25 22:06:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:31,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 523 [2021-08-25 22:06:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:31,308 INFO L225 Difference]: With dead ends: 7126 [2021-08-25 22:06:31,308 INFO L226 Difference]: Without dead ends: 3742 [2021-08-25 22:06:31,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:06:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-08-25 22:06:31,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3208. [2021-08-25 22:06:31,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.076083567196757) internal successors, (3451), 3207 states have internal predecessors, (3451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3451 transitions. [2021-08-25 22:06:31,367 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3451 transitions. Word has length 523 [2021-08-25 22:06:31,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:31,368 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3451 transitions. [2021-08-25 22:06:31,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3451 transitions. [2021-08-25 22:06:31,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2021-08-25 22:06:31,372 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:31,373 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:31,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-25 22:06:31,373 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:31,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:31,374 INFO L82 PathProgramCache]: Analyzing trace with hash 773092203, now seen corresponding path program 1 times [2021-08-25 22:06:31,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:31,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550524673] [2021-08-25 22:06:31,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:31,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 897 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-25 22:06:31,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:31,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550524673] [2021-08-25 22:06:31,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550524673] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:06:31,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226239681] [2021-08-25 22:06:31,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:31,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:06:31,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:06:31,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:06:31,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 22:06:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:31,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:06:31,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:06:33,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2021-08-25 22:06:33,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226239681] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:33,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:06:33,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 22:06:33,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041512952] [2021-08-25 22:06:33,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:33,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:33,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:33,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:33,722 INFO L87 Difference]: Start difference. First operand 3208 states and 3451 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:34,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:34,335 INFO L93 Difference]: Finished difference Result 7126 states and 7713 transitions. [2021-08-25 22:06:34,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:34,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 642 [2021-08-25 22:06:34,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:34,350 INFO L225 Difference]: With dead ends: 7126 [2021-08-25 22:06:34,351 INFO L226 Difference]: Without dead ends: 4098 [2021-08-25 22:06:34,354 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:34,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-08-25 22:06:34,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2021-08-25 22:06:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.069319013912619) internal successors, (4381), 4097 states have internal predecessors, (4381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:34,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4381 transitions. [2021-08-25 22:06:34,426 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4381 transitions. Word has length 642 [2021-08-25 22:06:34,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:34,427 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4381 transitions. [2021-08-25 22:06:34,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:34,428 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4381 transitions. [2021-08-25 22:06:34,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2021-08-25 22:06:34,434 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:34,435 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:34,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 22:06:34,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-25 22:06:34,660 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:34,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:34,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1607628923, now seen corresponding path program 1 times [2021-08-25 22:06:34,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:34,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241117030] [2021-08-25 22:06:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:34,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 1309 proven. 155 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-08-25 22:06:34,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:34,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241117030] [2021-08-25 22:06:34,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241117030] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:06:34,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845631801] [2021-08-25 22:06:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:34,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:06:34,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:06:34,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:06:34,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 22:06:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:35,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:06:35,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:06:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2021-08-25 22:06:37,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845631801] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:37,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:06:37,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 22:06:37,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972463704] [2021-08-25 22:06:37,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:37,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:37,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:37,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:37,386 INFO L87 Difference]: Start difference. First operand 4098 states and 4381 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:37,875 INFO L93 Difference]: Finished difference Result 4812 states and 5138 transitions. [2021-08-25 22:06:37,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:37,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 789 [2021-08-25 22:06:37,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:37,895 INFO L225 Difference]: With dead ends: 4812 [2021-08-25 22:06:37,896 INFO L226 Difference]: Without dead ends: 4810 [2021-08-25 22:06:37,900 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-08-25 22:06:37,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4098. [2021-08-25 22:06:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0690749328777154) internal successors, (4380), 4097 states have internal predecessors, (4380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4380 transitions. [2021-08-25 22:06:37,985 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4380 transitions. Word has length 789 [2021-08-25 22:06:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:37,986 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4380 transitions. [2021-08-25 22:06:37,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4380 transitions. [2021-08-25 22:06:37,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2021-08-25 22:06:37,994 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:37,995 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:38,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 22:06:38,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-08-25 22:06:38,208 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:38,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:38,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1892372598, now seen corresponding path program 1 times [2021-08-25 22:06:38,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:38,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48805984] [2021-08-25 22:06:38,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:38,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 1339 proven. 155 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-08-25 22:06:38,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:38,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48805984] [2021-08-25 22:06:38,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48805984] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:06:38,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563287020] [2021-08-25 22:06:38,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:38,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:06:38,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:06:38,452 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:06:38,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-25 22:06:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:39,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:06:39,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:06:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2021-08-25 22:06:41,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563287020] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:41,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:06:41,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 22:06:41,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277486636] [2021-08-25 22:06:41,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:41,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:41,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:41,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:41,116 INFO L87 Difference]: Start difference. First operand 4098 states and 4380 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:41,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:41,565 INFO L93 Difference]: Finished difference Result 4634 states and 4934 transitions. [2021-08-25 22:06:41,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:41,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 795 [2021-08-25 22:06:41,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:41,590 INFO L225 Difference]: With dead ends: 4634 [2021-08-25 22:06:41,590 INFO L226 Difference]: Without dead ends: 4632 [2021-08-25 22:06:41,592 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 795 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:41,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-08-25 22:06:41,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4098. [2021-08-25 22:06:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0688308518428118) internal successors, (4379), 4097 states have internal predecessors, (4379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:41,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4379 transitions. [2021-08-25 22:06:41,640 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4379 transitions. Word has length 795 [2021-08-25 22:06:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:41,642 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4379 transitions. [2021-08-25 22:06:41,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:41,644 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4379 transitions. [2021-08-25 22:06:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2021-08-25 22:06:41,651 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:06:41,651 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:06:41,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-25 22:06:41,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:06:41,873 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:06:41,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:06:41,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1274469118, now seen corresponding path program 1 times [2021-08-25 22:06:41,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:06:41,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559453374] [2021-08-25 22:06:41,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:41,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:06:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 1485 proven. 110 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2021-08-25 22:06:42,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:06:42,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559453374] [2021-08-25 22:06:42,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559453374] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:06:42,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937122318] [2021-08-25 22:06:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:06:42,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:06:42,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:06:42,109 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) [2021-08-25 22:06:42,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-25 22:06:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:06:43,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:06:43,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:06:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 1655 trivial. 0 not checked. [2021-08-25 22:06:45,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937122318] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:06:45,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:06:45,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 22:06:45,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507958711] [2021-08-25 22:06:45,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:06:45,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:06:45,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:06:45,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:45,067 INFO L87 Difference]: Start difference. First operand 4098 states and 4379 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:06:45,624 INFO L93 Difference]: Finished difference Result 8904 states and 9615 transitions. [2021-08-25 22:06:45,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:06:45,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 803 [2021-08-25 22:06:45,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:06:45,626 INFO L225 Difference]: With dead ends: 8904 [2021-08-25 22:06:45,626 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 22:06:45,634 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:06:45,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 22:06:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 22:06:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:45,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 22:06:45,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 803 [2021-08-25 22:06:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:06:45,635 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 22:06:45,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:06:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 22:06:45,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 22:06:45,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 22:06:45,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-25 22:06:45,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-25 22:06:45,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 22:06:45,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 22:06:45,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 22:06:45,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 22:06:46,211 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-08-25 22:06:46,211 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-08-25 22:06:46,212 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-08-25 22:06:46,212 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-08-25 22:06:46,212 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-08-25 22:06:46,212 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,212 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,212 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,212 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-08-25 22:06:46,213 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-08-25 22:06:46,213 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-08-25 22:06:46,213 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-08-25 22:06:46,213 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-08-25 22:06:46,213 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-08-25 22:06:46,213 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-08-25 22:06:46,213 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-08-25 22:06:46,214 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,214 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,214 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,214 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-08-25 22:06:46,214 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-08-25 22:06:46,214 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-08-25 22:06:46,214 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-08-25 22:06:46,214 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-08-25 22:06:46,215 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-08-25 22:06:46,215 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-08-25 22:06:46,215 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-08-25 22:06:46,215 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-08-25 22:06:46,215 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,215 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,215 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,216 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-08-25 22:06:46,216 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-08-25 22:06:46,216 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-08-25 22:06:46,217 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-08-25 22:06:46,217 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-08-25 22:06:46,218 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-08-25 22:06:46,218 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-08-25 22:06:46,218 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,218 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,218 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,219 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-08-25 22:06:46,219 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-08-25 22:06:46,219 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-08-25 22:06:46,219 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-08-25 22:06:46,219 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-08-25 22:06:46,219 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-08-25 22:06:46,219 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-08-25 22:06:46,219 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-08-25 22:06:46,220 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-08-25 22:06:46,221 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-08-25 22:06:46,222 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-08-25 22:06:46,223 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-08-25 22:06:46,224 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-08-25 22:06:46,224 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,224 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,224 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,224 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-08-25 22:06:46,224 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-08-25 22:06:46,224 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-08-25 22:06:46,224 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 22:06:46,225 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-08-25 22:06:46,226 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-08-25 22:06:46,226 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-08-25 22:06:46,226 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-08-25 22:06:46,226 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-08-25 22:06:46,226 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-08-25 22:06:46,226 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,226 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,226 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,227 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,228 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-08-25 22:06:46,229 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-08-25 22:06:46,230 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-08-25 22:06:46,231 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-08-25 22:06:46,232 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-08-25 22:06:46,233 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-08-25 22:06:46,233 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,233 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,233 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 6))) (or (and (<= 7 ~a15~0) .cse0) (and (<= 9 ~a21~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))) (and .cse0 .cse1) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)))) [2021-08-25 22:06:46,233 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-08-25 22:06:46,233 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-08-25 22:06:46,233 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-08-25 22:06:46,234 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-08-25 22:06:46,234 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-08-25 22:06:46,234 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-08-25 22:06:46,234 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-08-25 22:06:46,234 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-08-25 22:06:46,235 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,235 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,235 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-08-25 22:06:46,235 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-08-25 22:06:46,235 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-08-25 22:06:46,235 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-08-25 22:06:46,235 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-08-25 22:06:46,235 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-08-25 22:06:46,236 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-08-25 22:06:46,237 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-08-25 22:06:46,237 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,237 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,237 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-08-25 22:06:46,237 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,237 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-08-25 22:06:46,237 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 6))) (or (and (<= 7 ~a15~0) .cse0) (and (<= 9 ~a21~0) .cse0) (and .cse0 (< 0 (+ ~a12~0 43))) (and .cse0 .cse1) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)))) [2021-08-25 22:06:46,238 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-08-25 22:06:46,238 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-08-25 22:06:46,238 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-08-25 22:06:46,238 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-08-25 22:06:46,238 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-08-25 22:06:46,238 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-08-25 22:06:46,238 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-08-25 22:06:46,238 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-08-25 22:06:46,239 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-08-25 22:06:46,239 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,239 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,239 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:06:46,239 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-08-25 22:06:46,239 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-08-25 22:06:46,239 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-08-25 22:06:46,239 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-08-25 22:06:46,243 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 22:06:46,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 10:06:46 BoogieIcfgContainer [2021-08-25 22:06:46,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 22:06:46,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 22:06:46,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 22:06:46,265 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 22:06:46,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:06:21" (3/4) ... [2021-08-25 22:06:46,267 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 22:06:46,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 22:06:46,293 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 22:06:46,294 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 22:06:46,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 22:06:46,420 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 22:06:46,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 22:06:46,423 INFO L168 Benchmark]: Toolchain (without parser) took 27476.46 ms. Allocated memory was 52.4 MB in the beginning and 578.8 MB in the end (delta: 526.4 MB). Free memory was 27.3 MB in the beginning and 352.6 MB in the end (delta: -325.3 MB). Peak memory consumption was 201.6 MB. Max. memory is 16.1 GB. [2021-08-25 22:06:46,423 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 22:06:46,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.55 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.1 MB in the beginning and 41.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-08-25 22:06:46,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.46 ms. Allocated memory is still 62.9 MB. Free memory was 41.3 MB in the beginning and 31.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 22:06:46,424 INFO L168 Benchmark]: Boogie Preprocessor took 84.06 ms. Allocated memory is still 62.9 MB. Free memory was 31.5 MB in the beginning and 35.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-08-25 22:06:46,424 INFO L168 Benchmark]: RCFGBuilder took 1485.03 ms. Allocated memory was 62.9 MB in the beginning and 98.6 MB in the end (delta: 35.7 MB). Free memory was 35.2 MB in the beginning and 55.1 MB in the end (delta: -20.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-08-25 22:06:46,425 INFO L168 Benchmark]: TraceAbstraction took 25153.53 ms. Allocated memory was 98.6 MB in the beginning and 578.8 MB in the end (delta: 480.2 MB). Free memory was 54.6 MB in the beginning and 371.5 MB in the end (delta: -316.9 MB). Peak memory consumption was 163.0 MB. Max. memory is 16.1 GB. [2021-08-25 22:06:46,425 INFO L168 Benchmark]: Witness Printer took 156.52 ms. Allocated memory is still 578.8 MB. Free memory was 371.5 MB in the beginning and 352.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-08-25 22:06:46,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 501.55 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.1 MB in the beginning and 41.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.46 ms. Allocated memory is still 62.9 MB. Free memory was 41.3 MB in the beginning and 31.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.06 ms. Allocated memory is still 62.9 MB. Free memory was 31.5 MB in the beginning and 35.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1485.03 ms. Allocated memory was 62.9 MB in the beginning and 98.6 MB in the end (delta: 35.7 MB). Free memory was 35.2 MB in the beginning and 55.1 MB in the end (delta: -20.0 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25153.53 ms. Allocated memory was 98.6 MB in the beginning and 578.8 MB in the end (delta: 480.2 MB). Free memory was 54.6 MB in the beginning and 371.5 MB in the end (delta: -316.9 MB). Peak memory consumption was 163.0 MB. Max. memory is 16.1 GB. * Witness Printer took 156.52 ms. Allocated memory is still 578.8 MB. Free memory was 371.5 MB in the beginning and 352.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25079.3ms, OverallIterations: 15, TraceHistogramMax: 7, EmptinessCheckTime: 83.4ms, AutomataDifference: 10219.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 357.7ms, InitialAbstractionConstructionTime: 17.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1737 SDtfs, 2155 SDslu, 81 SDs, 0 SdLazy, 7671 SolverSat, 994 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7151.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3072 GetRequests, 3045 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 106.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4098occurred in iteration=12, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 675.7ms AutomataMinimizationTime, 15 MinimizatonAttempts, 2854 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 87 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2278 FormulaSimplificationTreeSizeReduction, 76.3ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 836 FormulaSimplificationTreeSizeReductionInter, 273.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 279.7ms SsaConstructionTime, 1072.2ms SatisfiabilityAnalysisTime, 9312.3ms InterpolantComputationTime, 9069 NumberOfCodeBlocks, 9069 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 9050 ConstructedInterpolants, 0 QuantifiedInterpolants, 17969 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3825 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 17548/18078 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((7 <= a15 && a24 == 1) || (9 <= a21 && a24 == 1)) || (a24 == 1 && 0 < a12 + 43)) || (a24 == 1 && a21 <= 6)) || ((a15 <= 8 && a21 <= 6) && 49 + a12 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((7 <= a15 && a24 == 1) || (9 <= a21 && a24 == 1)) || (a24 == 1 && 0 < a12 + 43)) || (a24 == 1 && a21 <= 6)) || ((a15 <= 8 && a21 <= 6) && 49 + a12 <= 0) RESULT: Ultimate proved your program to be correct! [2021-08-25 22:06:46,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...