./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 40a5d6cfc2906fb78e842e2acc20834b9d9ef51616470f27f80518312cafa40b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:42:14,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:42:14,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 21:42:14,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:42:14,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:42:14,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:42:14,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:42:14,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:42:14,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:42:14,553 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:42:14,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:42:14,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:42:14,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:42:14,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:42:14,558 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:42:14,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:42:14,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:42:14,559 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:42:14,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:42:14,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:42:14,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:42:14,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:42:14,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:42:14,564 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:42:14,564 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:42:14,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:42:14,565 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:42:14,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:42:14,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:42:14,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:42:14,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:42:14,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:42:14,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:42:14,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:42:14,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:42:14,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:42:14,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:42:14,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:42:14,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:42:14,572 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:42:14,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:42:14,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:42:14,573 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40a5d6cfc2906fb78e842e2acc20834b9d9ef51616470f27f80518312cafa40b [2023-11-23 21:42:14,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:42:14,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:42:14,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:42:14,921 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:42:14,922 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:42:14,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c [2023-11-23 21:42:18,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:42:18,871 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:42:18,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/sv-benchmarks/c/eca-rers2012/Problem02_label41.c [2023-11-23 21:42:18,895 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/data/b8941d8b0/fc09892dd979488f8538926c78191af9/FLAGaf4da827e [2023-11-23 21:42:18,913 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/data/b8941d8b0/fc09892dd979488f8538926c78191af9 [2023-11-23 21:42:18,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:42:18,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:42:18,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:42:18,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:42:18,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:42:18,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:42:18" (1/1) ... [2023-11-23 21:42:18,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e45ac0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:18, skipping insertion in model container [2023-11-23 21:42:18,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:42:18" (1/1) ... [2023-11-23 21:42:19,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:42:19,353 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/sv-benchmarks/c/eca-rers2012/Problem02_label41.c[15650,15663] [2023-11-23 21:42:19,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:42:19,443 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:42:19,591 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/sv-benchmarks/c/eca-rers2012/Problem02_label41.c[15650,15663] [2023-11-23 21:42:19,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:42:19,648 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:42:19,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19 WrapperNode [2023-11-23 21:42:19,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:42:19,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:42:19,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:42:19,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:42:19,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,760 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669 [2023-11-23 21:42:19,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:42:19,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:42:19,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:42:19,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:42:19,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,792 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,826 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:42:19,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:42:19,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:42:19,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:42:19,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:42:19,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (1/1) ... [2023-11-23 21:42:19,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:42:19,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:19,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:42:19,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:42:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:42:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:42:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:42:20,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:42:20,095 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:42:20,097 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:42:21,382 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:42:21,458 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:42:21,458 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:42:21,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:42:21 BoogieIcfgContainer [2023-11-23 21:42:21,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:42:21,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:42:21,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:42:21,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:42:21,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:42:18" (1/3) ... [2023-11-23 21:42:21,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3153342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:42:21, skipping insertion in model container [2023-11-23 21:42:21,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:42:19" (2/3) ... [2023-11-23 21:42:21,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3153342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:42:21, skipping insertion in model container [2023-11-23 21:42:21,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:42:21" (3/3) ... [2023-11-23 21:42:21,469 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2023-11-23 21:42:21,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:42:21,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:42:21,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:42:21,556 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ef8e8ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:42:21,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:42:21,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:21,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 21:42:21,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:21,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:21,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:21,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1377106940, now seen corresponding path program 1 times [2023-11-23 21:42:21,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:21,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306024746] [2023-11-23 21:42:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:21,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:21,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:21,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:21,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306024746] [2023-11-23 21:42:21,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306024746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:21,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:21,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:42:22,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752179094] [2023-11-23 21:42:22,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:22,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:42:22,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:22,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:42:22,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:42:22,067 INFO L87 Difference]: Start difference. First operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 44.5) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:22,110 INFO L93 Difference]: Finished difference Result 329 states and 625 transitions. [2023-11-23 21:42:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:42:22,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 44.5) internal successors, (89), 2 states have internal predecessors, (89), 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 89 [2023-11-23 21:42:22,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:22,137 INFO L225 Difference]: With dead ends: 329 [2023-11-23 21:42:22,138 INFO L226 Difference]: Without dead ends: 163 [2023-11-23 21:42:22,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:42:22,146 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:22,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:42:22,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-23 21:42:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-11-23 21:42:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:22,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 248 transitions. [2023-11-23 21:42:22,206 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 248 transitions. Word has length 89 [2023-11-23 21:42:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:22,207 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 248 transitions. [2023-11-23 21:42:22,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.5) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 248 transitions. [2023-11-23 21:42:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 21:42:22,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:22,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:22,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:42:22,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:22,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:22,214 INFO L85 PathProgramCache]: Analyzing trace with hash 266918181, now seen corresponding path program 1 times [2023-11-23 21:42:22,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:22,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649671129] [2023-11-23 21:42:22,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:22,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:22,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:22,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:22,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649671129] [2023-11-23 21:42:22,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649671129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:22,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:22,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:42:22,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121136159] [2023-11-23 21:42:22,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:22,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:22,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:22,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:22,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:22,581 INFO L87 Difference]: Start difference. First operand 163 states and 248 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:23,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:23,226 INFO L93 Difference]: Finished difference Result 479 states and 731 transitions. [2023-11-23 21:42:23,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:23,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 89 [2023-11-23 21:42:23,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:23,231 INFO L225 Difference]: With dead ends: 479 [2023-11-23 21:42:23,231 INFO L226 Difference]: Without dead ends: 317 [2023-11-23 21:42:23,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:23,234 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 116 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:23,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 72 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:42:23,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-23 21:42:23,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2023-11-23 21:42:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.4746835443037976) internal successors, (466), 316 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:23,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 466 transitions. [2023-11-23 21:42:23,263 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 466 transitions. Word has length 89 [2023-11-23 21:42:23,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:23,264 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 466 transitions. [2023-11-23 21:42:23,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 466 transitions. [2023-11-23 21:42:23,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 21:42:23,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:23,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:23,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:42:23,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:23,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:23,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1389216560, now seen corresponding path program 1 times [2023-11-23 21:42:23,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:23,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783221976] [2023-11-23 21:42:23,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:23,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:23,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:23,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783221976] [2023-11-23 21:42:23,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783221976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:23,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:23,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:42:23,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728774663] [2023-11-23 21:42:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:23,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:23,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:23,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:23,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:23,651 INFO L87 Difference]: Start difference. First operand 317 states and 466 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:24,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:24,200 INFO L93 Difference]: Finished difference Result 918 states and 1356 transitions. [2023-11-23 21:42:24,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:24,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 93 [2023-11-23 21:42:24,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:24,205 INFO L225 Difference]: With dead ends: 918 [2023-11-23 21:42:24,205 INFO L226 Difference]: Without dead ends: 602 [2023-11-23 21:42:24,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:24,216 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 143 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:24,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 120 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-11-23 21:42:24,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 600. [2023-11-23 21:42:24,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.2921535893155258) internal successors, (774), 599 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 774 transitions. [2023-11-23 21:42:24,265 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 774 transitions. Word has length 93 [2023-11-23 21:42:24,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:24,267 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 774 transitions. [2023-11-23 21:42:24,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:24,267 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 774 transitions. [2023-11-23 21:42:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 21:42:24,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:24,281 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:24,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:42:24,281 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:24,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:24,282 INFO L85 PathProgramCache]: Analyzing trace with hash 755775787, now seen corresponding path program 1 times [2023-11-23 21:42:24,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:24,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583729264] [2023-11-23 21:42:24,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:24,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:24,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:24,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583729264] [2023-11-23 21:42:24,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583729264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:24,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:24,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:42:24,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968786790] [2023-11-23 21:42:24,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:24,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:24,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:24,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:24,487 INFO L87 Difference]: Start difference. First operand 600 states and 774 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:25,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:25,048 INFO L93 Difference]: Finished difference Result 1485 states and 1973 transitions. [2023-11-23 21:42:25,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:25,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2023-11-23 21:42:25,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:25,054 INFO L225 Difference]: With dead ends: 1485 [2023-11-23 21:42:25,055 INFO L226 Difference]: Without dead ends: 886 [2023-11-23 21:42:25,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:25,057 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 144 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:25,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 252 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:25,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2023-11-23 21:42:25,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 884. [2023-11-23 21:42:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.232163080407701) internal successors, (1088), 883 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:25,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1088 transitions. [2023-11-23 21:42:25,082 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1088 transitions. Word has length 98 [2023-11-23 21:42:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:25,082 INFO L495 AbstractCegarLoop]: Abstraction has 884 states and 1088 transitions. [2023-11-23 21:42:25,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:25,083 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1088 transitions. [2023-11-23 21:42:25,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 21:42:25,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:25,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:25,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:42:25,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:25,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash -105764447, now seen corresponding path program 1 times [2023-11-23 21:42:25,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:25,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587529344] [2023-11-23 21:42:25,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:25,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:25,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:25,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587529344] [2023-11-23 21:42:25,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587529344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:25,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:25,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:42:25,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570101037] [2023-11-23 21:42:25,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:25,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:25,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:25,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:25,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:25,180 INFO L87 Difference]: Start difference. First operand 884 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:25,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:25,730 INFO L93 Difference]: Finished difference Result 2468 states and 3052 transitions. [2023-11-23 21:42:25,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:25,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 99 [2023-11-23 21:42:25,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:25,740 INFO L225 Difference]: With dead ends: 2468 [2023-11-23 21:42:25,740 INFO L226 Difference]: Without dead ends: 1585 [2023-11-23 21:42:25,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:25,745 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 190 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:25,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 77 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2023-11-23 21:42:25,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2023-11-23 21:42:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 1.1957070707070707) internal successors, (1894), 1584 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 1894 transitions. [2023-11-23 21:42:25,794 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 1894 transitions. Word has length 99 [2023-11-23 21:42:25,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:25,796 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 1894 transitions. [2023-11-23 21:42:25,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 1894 transitions. [2023-11-23 21:42:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-23 21:42:25,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:25,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:25,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:42:25,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:25,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:25,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1546302431, now seen corresponding path program 1 times [2023-11-23 21:42:25,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:25,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596230824] [2023-11-23 21:42:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:25,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:26,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596230824] [2023-11-23 21:42:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596230824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:42:26,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976812509] [2023-11-23 21:42:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:26,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:26,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:26,008 INFO L87 Difference]: Start difference. First operand 1585 states and 1894 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:26,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:26,549 INFO L93 Difference]: Finished difference Result 3730 states and 4455 transitions. [2023-11-23 21:42:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:26,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2023-11-23 21:42:26,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:26,561 INFO L225 Difference]: With dead ends: 3730 [2023-11-23 21:42:26,561 INFO L226 Difference]: Without dead ends: 2146 [2023-11-23 21:42:26,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:26,564 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 143 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:26,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 267 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:26,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2023-11-23 21:42:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2145. [2023-11-23 21:42:26,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.15625) internal successors, (2479), 2144 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2479 transitions. [2023-11-23 21:42:26,620 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2479 transitions. Word has length 102 [2023-11-23 21:42:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:26,620 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 2479 transitions. [2023-11-23 21:42:26,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2479 transitions. [2023-11-23 21:42:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-23 21:42:26,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:26,624 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:26,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:42:26,624 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:26,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:26,625 INFO L85 PathProgramCache]: Analyzing trace with hash 820278162, now seen corresponding path program 1 times [2023-11-23 21:42:26,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:26,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756801511] [2023-11-23 21:42:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:26,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:26,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:26,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756801511] [2023-11-23 21:42:26,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756801511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:26,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:26,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:42:26,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894460765] [2023-11-23 21:42:26,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:26,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:26,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:26,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:26,749 INFO L87 Difference]: Start difference. First operand 2145 states and 2479 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) [2023-11-23 21:42:27,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:27,262 INFO L93 Difference]: Finished difference Result 4290 states and 4959 transitions. [2023-11-23 21:42:27,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:27,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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 [2023-11-23 21:42:27,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:27,275 INFO L225 Difference]: With dead ends: 4290 [2023-11-23 21:42:27,276 INFO L226 Difference]: Without dead ends: 2146 [2023-11-23 21:42:27,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:27,285 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 161 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:27,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 50 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:27,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2023-11-23 21:42:27,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2145. [2023-11-23 21:42:27,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.1305970149253732) internal successors, (2424), 2144 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:27,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2424 transitions. [2023-11-23 21:42:27,393 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2424 transitions. Word has length 118 [2023-11-23 21:42:27,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:27,393 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 2424 transitions. [2023-11-23 21:42:27,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 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) [2023-11-23 21:42:27,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2424 transitions. [2023-11-23 21:42:27,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-23 21:42:27,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:27,398 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:27,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:42:27,398 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:27,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:27,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1164734344, now seen corresponding path program 1 times [2023-11-23 21:42:27,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:27,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035897024] [2023-11-23 21:42:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:27,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:42:27,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:27,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035897024] [2023-11-23 21:42:27,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035897024] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:27,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576733037] [2023-11-23 21:42:27,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:27,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:27,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:27,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:27,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:42:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:27,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:42:27,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 21:42:28,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:28,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576733037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:28,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:28,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-23 21:42:28,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105922412] [2023-11-23 21:42:28,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:28,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:28,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:28,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:28,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:42:28,127 INFO L87 Difference]: Start difference. First operand 2145 states and 2424 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:28,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:28,685 INFO L93 Difference]: Finished difference Result 4289 states and 4847 transitions. [2023-11-23 21:42:28,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:28,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 [2023-11-23 21:42:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:28,699 INFO L225 Difference]: With dead ends: 4289 [2023-11-23 21:42:28,700 INFO L226 Difference]: Without dead ends: 2145 [2023-11-23 21:42:28,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:42:28,705 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 76 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:28,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 245 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2023-11-23 21:42:28,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2145. [2023-11-23 21:42:28,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2144 states have (on average 1.091884328358209) internal successors, (2341), 2144 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:28,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2341 transitions. [2023-11-23 21:42:28,767 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2341 transitions. Word has length 122 [2023-11-23 21:42:28,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:28,768 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 2341 transitions. [2023-11-23 21:42:28,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2341 transitions. [2023-11-23 21:42:28,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-23 21:42:28,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:28,773 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:28,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:29,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 21:42:29,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:29,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1792971341, now seen corresponding path program 1 times [2023-11-23 21:42:29,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:29,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452915211] [2023-11-23 21:42:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:29,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:42:29,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:29,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452915211] [2023-11-23 21:42:29,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452915211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:29,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:29,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:42:29,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533174234] [2023-11-23 21:42:29,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:29,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:42:29,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:29,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:42:29,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:42:29,324 INFO L87 Difference]: Start difference. First operand 2145 states and 2341 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:30,138 INFO L93 Difference]: Finished difference Result 5072 states and 5590 transitions. [2023-11-23 21:42:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:42:30,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 123 [2023-11-23 21:42:30,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:30,153 INFO L225 Difference]: With dead ends: 5072 [2023-11-23 21:42:30,153 INFO L226 Difference]: Without dead ends: 2845 [2023-11-23 21:42:30,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:42:30,159 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 143 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:30,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 101 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:42:30,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2023-11-23 21:42:30,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2285. [2023-11-23 21:42:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2284 states have (on average 1.095446584938704) internal successors, (2502), 2284 states have internal predecessors, (2502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:30,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 2502 transitions. [2023-11-23 21:42:30,220 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 2502 transitions. Word has length 123 [2023-11-23 21:42:30,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:30,220 INFO L495 AbstractCegarLoop]: Abstraction has 2285 states and 2502 transitions. [2023-11-23 21:42:30,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 2502 transitions. [2023-11-23 21:42:30,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 21:42:30,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:30,226 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:30,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:42:30,227 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:30,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:30,228 INFO L85 PathProgramCache]: Analyzing trace with hash 418124088, now seen corresponding path program 1 times [2023-11-23 21:42:30,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:30,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226634349] [2023-11-23 21:42:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:30,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 54 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:42:30,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:30,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226634349] [2023-11-23 21:42:30,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226634349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:30,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998308245] [2023-11-23 21:42:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:30,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:30,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:30,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:30,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:42:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:30,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:42:30,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:30,778 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 21:42:30,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:30,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998308245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:30,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:30,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-23 21:42:30,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741927810] [2023-11-23 21:42:30,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:30,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:30,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:30,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:30,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:42:30,781 INFO L87 Difference]: Start difference. First operand 2285 states and 2502 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:31,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:31,329 INFO L93 Difference]: Finished difference Result 5135 states and 5669 transitions. [2023-11-23 21:42:31,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:31,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 138 [2023-11-23 21:42:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:31,344 INFO L225 Difference]: With dead ends: 5135 [2023-11-23 21:42:31,344 INFO L226 Difference]: Without dead ends: 2851 [2023-11-23 21:42:31,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:42:31,348 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 133 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:31,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 111 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:31,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-11-23 21:42:31,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2568. [2023-11-23 21:42:31,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2567 states have (on average 1.0888196338137903) internal successors, (2795), 2567 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:31,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 2795 transitions. [2023-11-23 21:42:31,426 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 2795 transitions. Word has length 138 [2023-11-23 21:42:31,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:31,426 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 2795 transitions. [2023-11-23 21:42:31,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:31,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 2795 transitions. [2023-11-23 21:42:31,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-23 21:42:31,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:31,432 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:31,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:31,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:42:31,654 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:31,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:31,655 INFO L85 PathProgramCache]: Analyzing trace with hash 528495231, now seen corresponding path program 1 times [2023-11-23 21:42:31,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:31,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785302720] [2023-11-23 21:42:31,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:31,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-23 21:42:32,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:32,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785302720] [2023-11-23 21:42:32,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785302720] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:32,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002378266] [2023-11-23 21:42:32,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:32,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:32,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:32,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:32,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:42:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:32,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:42:32,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:32,399 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:42:32,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:32,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002378266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:32,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:32,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-23 21:42:32,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227296847] [2023-11-23 21:42:32,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:32,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:32,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:32,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:32,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:42:32,403 INFO L87 Difference]: Start difference. First operand 2568 states and 2795 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2023-11-23 21:42:32,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:32,924 INFO L93 Difference]: Finished difference Result 5695 states and 6246 transitions. [2023-11-23 21:42:32,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:32,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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 149 [2023-11-23 21:42:32,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:32,938 INFO L225 Difference]: With dead ends: 5695 [2023-11-23 21:42:32,938 INFO L226 Difference]: Without dead ends: 2567 [2023-11-23 21:42:32,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:42:32,943 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 67 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:32,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 245 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2023-11-23 21:42:33,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2567. [2023-11-23 21:42:33,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2567 states, 2566 states have (on average 1.0717069368667187) internal successors, (2750), 2566 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:33,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 2750 transitions. [2023-11-23 21:42:33,014 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 2750 transitions. Word has length 149 [2023-11-23 21:42:33,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:33,014 INFO L495 AbstractCegarLoop]: Abstraction has 2567 states and 2750 transitions. [2023-11-23 21:42:33,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2023-11-23 21:42:33,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 2750 transitions. [2023-11-23 21:42:33,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 21:42:33,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:33,020 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:33,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:33,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:33,242 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:33,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:33,242 INFO L85 PathProgramCache]: Analyzing trace with hash -2026529998, now seen corresponding path program 1 times [2023-11-23 21:42:33,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:33,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122629626] [2023-11-23 21:42:33,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:33,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 77 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-23 21:42:33,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:33,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122629626] [2023-11-23 21:42:33,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122629626] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:42:33,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687679857] [2023-11-23 21:42:33,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:33,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:33,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:42:33,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:42:33,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:42:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:33,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:42:33,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:42:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-23 21:42:33,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:42:33,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687679857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:33,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:42:33,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-23 21:42:33,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681988122] [2023-11-23 21:42:33,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:33,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:33,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:33,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:33,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:42:33,777 INFO L87 Difference]: Start difference. First operand 2567 states and 2750 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:34,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:34,288 INFO L93 Difference]: Finished difference Result 6270 states and 6741 transitions. [2023-11-23 21:42:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:34,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 155 [2023-11-23 21:42:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:34,335 INFO L225 Difference]: With dead ends: 6270 [2023-11-23 21:42:34,336 INFO L226 Difference]: Without dead ends: 3704 [2023-11-23 21:42:34,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:42:34,339 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 155 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:34,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 126 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:42:34,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2023-11-23 21:42:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3413. [2023-11-23 21:42:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3412 states have (on average 1.073856975381008) internal successors, (3664), 3412 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 3664 transitions. [2023-11-23 21:42:34,431 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 3664 transitions. Word has length 155 [2023-11-23 21:42:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:34,431 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 3664 transitions. [2023-11-23 21:42:34,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:34,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 3664 transitions. [2023-11-23 21:42:34,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-23 21:42:34,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:34,438 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:34,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:42:34,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:42:34,658 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:34,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:34,659 INFO L85 PathProgramCache]: Analyzing trace with hash -10971734, now seen corresponding path program 1 times [2023-11-23 21:42:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:34,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941938909] [2023-11-23 21:42:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:34,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 21:42:34,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:34,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941938909] [2023-11-23 21:42:34,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941938909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:34,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:34,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:42:34,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453306396] [2023-11-23 21:42:34,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:34,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:34,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:34,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:34,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:34,765 INFO L87 Difference]: Start difference. First operand 3413 states and 3664 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:35,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:35,232 INFO L93 Difference]: Finished difference Result 6826 states and 7329 transitions. [2023-11-23 21:42:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:35,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 159 [2023-11-23 21:42:35,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:35,249 INFO L225 Difference]: With dead ends: 6826 [2023-11-23 21:42:35,250 INFO L226 Difference]: Without dead ends: 3134 [2023-11-23 21:42:35,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:35,255 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 134 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:35,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 240 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:42:35,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2023-11-23 21:42:35,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 2704. [2023-11-23 21:42:35,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2704 states, 2703 states have (on average 1.0640029596744358) internal successors, (2876), 2703 states have internal predecessors, (2876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:35,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2704 states to 2704 states and 2876 transitions. [2023-11-23 21:42:35,324 INFO L78 Accepts]: Start accepts. Automaton has 2704 states and 2876 transitions. Word has length 159 [2023-11-23 21:42:35,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:35,324 INFO L495 AbstractCegarLoop]: Abstraction has 2704 states and 2876 transitions. [2023-11-23 21:42:35,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:35,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2704 states and 2876 transitions. [2023-11-23 21:42:35,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-23 21:42:35,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:35,333 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-11-23 21:42:35,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:42:35,333 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:35,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:35,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1454790496, now seen corresponding path program 1 times [2023-11-23 21:42:35,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:35,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358343884] [2023-11-23 21:42:35,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:35,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 21:42:35,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:35,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358343884] [2023-11-23 21:42:35,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358343884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:35,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:35,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:42:35,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031608631] [2023-11-23 21:42:35,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:35,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:35,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:35,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:35,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:35,528 INFO L87 Difference]: Start difference. First operand 2704 states and 2876 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:36,027 INFO L93 Difference]: Finished difference Result 5822 states and 6202 transitions. [2023-11-23 21:42:36,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:36,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 193 [2023-11-23 21:42:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:36,044 INFO L225 Difference]: With dead ends: 5822 [2023-11-23 21:42:36,044 INFO L226 Difference]: Without dead ends: 3119 [2023-11-23 21:42:36,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:36,048 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 130 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:36,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 195 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:42:36,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2023-11-23 21:42:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3117. [2023-11-23 21:42:36,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 1.0539152759948651) internal successors, (3284), 3116 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:36,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 3284 transitions. [2023-11-23 21:42:36,135 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 3284 transitions. Word has length 193 [2023-11-23 21:42:36,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:36,135 INFO L495 AbstractCegarLoop]: Abstraction has 3117 states and 3284 transitions. [2023-11-23 21:42:36,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 3284 transitions. [2023-11-23 21:42:36,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-23 21:42:36,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:42:36,143 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-11-23 21:42:36,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 21:42:36,144 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:42:36,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:42:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1666441408, now seen corresponding path program 1 times [2023-11-23 21:42:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:42:36,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646355641] [2023-11-23 21:42:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:42:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:42:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:42:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 21:42:36,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:42:36,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646355641] [2023-11-23 21:42:36,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646355641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:42:36,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:42:36,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:42:36,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680374148] [2023-11-23 21:42:36,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:42:36,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:42:36,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:42:36,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:42:36,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:36,302 INFO L87 Difference]: Start difference. First operand 3117 states and 3284 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:36,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:42:36,722 INFO L93 Difference]: Finished difference Result 6226 states and 6543 transitions. [2023-11-23 21:42:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:42:36,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 203 [2023-11-23 21:42:36,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:42:36,723 INFO L225 Difference]: With dead ends: 6226 [2023-11-23 21:42:36,723 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:42:36,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:42:36,730 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 129 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:42:36,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 217 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:42:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:42:36,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:42:36,731 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) [2023-11-23 21:42:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:42:36,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 203 [2023-11-23 21:42:36,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:42:36,732 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:42:36,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:42:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:42:36,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:42:36,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:42:36,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 21:42:36,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:42:37,406 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,406 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,406 INFO L899 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,407 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2023-11-23 21:42:37,408 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,409 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2023-11-23 21:42:37,410 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,411 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,412 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2023-11-23 21:42:37,413 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 452) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2023-11-23 21:42:37,414 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2023-11-23 21:42:37,415 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2023-11-23 21:42:37,416 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2023-11-23 21:42:37,417 INFO L899 garLoopResultBuilder]: For program point L610(lines 610 627) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,418 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,419 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2023-11-23 21:42:37,419 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2023-11-23 21:42:37,419 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2023-11-23 21:42:37,419 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2023-11-23 21:42:37,420 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse10 (= ~a28~0 10)) (.cse5 (= ~a11~0 0)) (.cse9 (<= ~a25~0 0)) (.cse0 (= ~a17~0 8)) (.cse3 (= ~a21~0 1)) (.cse4 (= ~a19~0 1)) (.cse6 (<= ~a28~0 7)) (.cse1 (<= 9 ~a28~0)) (.cse2 (= ~a25~0 1)) (.cse8 (<= ~a28~0 10)) (.cse7 (<= ~a19~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse5 .cse4) (and .cse6 .cse7) (and .cse1 .cse5 .cse8 .cse4 .cse9) (and .cse8 .cse9 .cse7) (and .cse10 (not .cse2) .cse4) (and .cse2 (= ~a11~0 1) .cse4 .cse6) (and .cse5 .cse9 .cse7) (and .cse2 .cse10 .cse5 .cse7) (and .cse5 .cse4 .cse6 .cse9) (and .cse0 .cse1 .cse3 .cse8 .cse4 .cse9) (and .cse0 .cse2 .cse3 .cse4 .cse6) (and .cse1 .cse2 (<= ~a17~0 7) .cse8 .cse7))) [2023-11-23 21:42:37,420 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,420 INFO L899 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,420 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2023-11-23 21:42:37,420 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2023-11-23 21:42:37,420 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2023-11-23 21:42:37,420 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,420 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,420 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2023-11-23 21:42:37,421 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,422 INFO L899 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,423 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2023-11-23 21:42:37,423 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2023-11-23 21:42:37,423 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2023-11-23 21:42:37,423 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2023-11-23 21:42:37,426 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:42:37,429 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:42:37,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:42:37 BoogieIcfgContainer [2023-11-23 21:42:37,444 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:42:37,445 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:42:37,445 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:42:37,445 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:42:37,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:42:21" (3/4) ... [2023-11-23 21:42:37,448 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:42:37,466 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 21:42:37,467 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 21:42:37,469 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:42:37,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:42:37,632 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:42:37,633 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 21:42:37,633 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:42:37,634 INFO L158 Benchmark]: Toolchain (without parser) took 18712.01ms. Allocated memory was 163.6MB in the beginning and 331.4MB in the end (delta: 167.8MB). Free memory was 130.2MB in the beginning and 202.5MB in the end (delta: -72.3MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2023-11-23 21:42:37,634 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:42:37,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 723.32ms. Allocated memory is still 163.6MB. Free memory was 130.2MB in the beginning and 103.5MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:42:37,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.46ms. Allocated memory is still 163.6MB. Free memory was 103.5MB in the beginning and 97.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:42:37,635 INFO L158 Benchmark]: Boogie Preprocessor took 146.36ms. Allocated memory is still 163.6MB. Free memory was 97.7MB in the beginning and 92.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:42:37,636 INFO L158 Benchmark]: RCFGBuilder took 1550.44ms. Allocated memory is still 163.6MB. Free memory was 92.4MB in the beginning and 119.2MB in the end (delta: -26.8MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-11-23 21:42:37,636 INFO L158 Benchmark]: TraceAbstraction took 15982.81ms. Allocated memory was 163.6MB in the beginning and 331.4MB in the end (delta: 167.8MB). Free memory was 118.3MB in the beginning and 215.0MB in the end (delta: -96.8MB). Peak memory consumption was 191.3MB. Max. memory is 16.1GB. [2023-11-23 21:42:37,637 INFO L158 Benchmark]: Witness Printer took 188.40ms. Allocated memory is still 331.4MB. Free memory was 215.0MB in the beginning and 202.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:42:37,639 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 723.32ms. Allocated memory is still 163.6MB. Free memory was 130.2MB in the beginning and 103.5MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.46ms. Allocated memory is still 163.6MB. Free memory was 103.5MB in the beginning and 97.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 146.36ms. Allocated memory is still 163.6MB. Free memory was 97.7MB in the beginning and 92.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1550.44ms. Allocated memory is still 163.6MB. Free memory was 92.4MB in the beginning and 119.2MB in the end (delta: -26.8MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15982.81ms. Allocated memory was 163.6MB in the beginning and 331.4MB in the end (delta: 167.8MB). Free memory was 118.3MB in the beginning and 215.0MB in the end (delta: -96.8MB). Peak memory consumption was 191.3MB. Max. memory is 16.1GB. * Witness Printer took 188.40ms. Allocated memory is still 331.4MB. Free memory was 215.0MB in the beginning and 202.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 452]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 165 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.9s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1864 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1864 mSDsluCounter, 2566 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 245 mSDsCounter, 825 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5267 IncrementalHoareTripleChecker+Invalid, 6092 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 825 mSolverCounterUnsat, 2321 mSDtfsCounter, 5267 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 605 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3413occurred in iteration=12, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 1572 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 30 NumberOfFragments, 171 HoareAnnotationTreeSize, 1 FomulaSimplifications, 228 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 1 FomulaSimplificationsInter, 509 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2494 NumberOfCodeBlocks, 2494 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2475 ConstructedInterpolants, 0 QuantifiedInterpolants, 6944 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1155 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 1191/1223 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: 616]: Loop Invariant Derived loop invariant: (((((((((((((((((a17 == 8) && (9 <= a28)) && (a25 == 1)) && (a21 == 1)) && (a19 == 1)) || (((a25 == 1) && (a11 == 0)) && (a19 == 1))) || ((a28 <= 7) && (a19 <= 0))) || (((((9 <= a28) && (a11 == 0)) && (a28 <= 10)) && (a19 == 1)) && (a25 <= 0))) || (((a28 <= 10) && (a25 <= 0)) && (a19 <= 0))) || (((a28 == 10) && !((a25 == 1))) && (a19 == 1))) || ((((a25 == 1) && (a11 == 1)) && (a19 == 1)) && (a28 <= 7))) || (((a11 == 0) && (a25 <= 0)) && (a19 <= 0))) || ((((a25 == 1) && (a28 == 10)) && (a11 == 0)) && (a19 <= 0))) || ((((a11 == 0) && (a19 == 1)) && (a28 <= 7)) && (a25 <= 0))) || ((((((a17 == 8) && (9 <= a28)) && (a21 == 1)) && (a28 <= 10)) && (a19 == 1)) && (a25 <= 0))) || (((((a17 == 8) && (a25 == 1)) && (a21 == 1)) && (a19 == 1)) && (a28 <= 7))) || (((((9 <= a28) && (a25 == 1)) && (a17 <= 7)) && (a28 <= 10)) && (a19 <= 0))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:42:37,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe47655-275d-4923-a27e-20b80f703b5b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE